Topic 32 "The Moon's changing shape": your read (2 October 2026)

Two readers answered 129 items cold and caught one wrong bank key before anything else moved: PP-26 asked which named shape follows a half Moon lit on the left, and the key said "a new Moon"; both readers answered "a crescent Moon", and they were right, because the lit part gets smaller through a crescent before the new Moon. The key moved to the crescent and the why was rewritten. All seven order keys matched both readers letter for letter, first night to last. Their other flags, all applied in v2: a practice stem ("along its orbit") that handed the typed "orbit" item its answer, and "a lap" as a second defensible answer there; a spotlight placed twice in one stem; two identical distractors on one quiz item; a key that was the only option with a colon; "more than half lit" the key every time it appeared; alt text on name-the-shape items that printed "half"; five practice items that were quiz items with the nouns kept; mild length tells; wider accept lists for the typed answers; "is this full?" asked of a Moon that was nearly full (now "exactly").

Reader C then read the whole v2 bundle, 129 items, and agreed every key; every new-Moon stem carried its datum, no key credited Earth's shadow, and the drawing descriptions named the lit side without the word "half". Four items would not ship as they stood: PP-20, whose key was the only option not written "a … Moon"; PP-45, where a thin left crescent plus one week reached two answers by rounding; L04-03, which was the lesson's attached question word for word; and the pair L01-06 / PP-05, where three "lit" distractors made the one "ball" key the odd one out. One soft flag: PP-30 assumed the month starts at the new Moon. All applied in v3; no key letter changed. The reader also flagged PP-48 as a wrong key, but the letter the reader gave is the bank's own key under the bundle's shuffle, so it stands.

Sound science taught in the right order, the reviewer said: the pattern before the names, the names before the ordering, the ordering before the prediction, the why last at recognition level; every record claim re-ran true; the seven order keys all derive from one list; the drawing from above is right for the US sky. Three things had to change, and did: the key-tell checker to zero (eight items); a false sentence in L05's script ("In between, we see a half Moon" became "Half way, we see a half Moon"); and three items that taught a Moon you cannot find on a clear night is a new Moon, which plants the picture of a dark Moon sitting in the night sky (the stems now say none of its lit part faces us). Worth fixing, all done: the L02 line "still up there, too dark to see" (now "The Moon is still there at a new Moon. Its dark half faces us, so we cannot see it."); four practice items reused from the quizzes; the D key starved (six items re-lettered); two hard tags that were one-step items (now medium); two article imperatives; "stay the same shape every night" softened to "almost the same"; L05 trimmed from 388 to 358 words. The reviewer answered the author's four questions as the page above shows (no to "quarter Moon"; yes to the side rule with the US line; yes to the "more than half" label once it was a distractor somewhere; keep L05 whole, trimmed), and ruled the full-Moon-and-shadow point deliberately omitted as grade 6-8.

What a student notices first is a clean set of Moon discs: the lit side right on every disc, a half a true half with a straight edge, a crescent a thin slice, and the drawing from above with no shadow anywhere near the Moon. The drawings were right; the faults were letters, alt text and phone size. Six fixes before the cold read, all made: order-card letters sat on the disc and vanished white-on-cream (now under each card); alt and blind text handed over "half" on name-the-shape items (now "the right side lit, up to a straight edge down the middle"); labels on the strip, the notebook, the week cards and the view from above were too small on a phone (enlarged; the shared table and rule-card drawers recorded as desktop-first); a leader line crossed the label "the Moon" (moved); seven figure keys sat on no page (three placed on the re-scened practice items; seven deleted, counting the byte-identical twins); placeholder notes said "the real Moon" and named the pipeline (now "photo: …" and nothing else). One minor: an order set showed its first night first (re-ordered, key recomputed). Every figure renders whole at desktop and phone widths; no duplicate ids.

54 items in content/G4T32_pp100_bank.py: 46 four-option MCQs, 4 typed (the number of weeks, twice; "the Sun"; "half"), 3 order items on lettered cards and one two-of-four select. Per atom: SPA4-020 8 · 021 12 · 022 12 · 023 10 · 024 12. Easy 16, medium 25, hard 13, sorted easy to hard and rising with the atom's place in the topic. MCQ keys A 11 · B 13 · C 10 · D 12. Twenty question types, one exemplar each on the type sheet: what changes and what stays the same; how long; name a described shape; name a drawn shape; what the lit part does after a new or full Moon; the drawing a month later; tell the shapes apart; a claim fixed as wrong, pick the sentence that shows it; read the lit side; which shape comes next; order the cards; predict by weeks from a told shape; predict from a drawn card; the lit half; the why; the multi-select; type the weeks; type the word; transfer to a spotlight and a balloon; the counterfactual. Every scene is fresh against the lessons, quizzes and practice (the scene-noun grep is in the build record), and the type sheet lists the draw constraints, including the new one from v3 (PP-35 and PP-45 share a card).

Skill: course-build → write-lesson (L01 a fact lesson on a pattern seen over a month; L02 a categorical lesson coining four names last; L03 the order routine; L04 the predict-a-week-on routine; L05 the capstone why at recognition level) → write-example-sequence, design-check-sequence, sentence-atomise, write-explanation, write-mcqs (quizzes, attached questions, practice, the PP100 bank and its type sheet); write-video-script (intro, five lesson scripts, summary) @ efd8fba

Grade 4 Topic 32 — The Moon's changing shape — build record (v1, 2 October 2026)

What this is, in plain words

Five lessons that answer Ramon's question in the back yard: did a piece of the Moon break off? The children watch Piper's Moon notebook fill up over a month (the lit shape gets smaller to nothing and comes back), name the four shapes (full, half, crescent, new), put pictures of the shapes in order using which side is lit, predict the shape a week on, and then see why: the Sun lights one half of the Moon, and as the Moon travels around Earth we see that lit half from different sides. Earth's shadow is named as NOT the cause. Everything is written to the Grade 4 standing brief with no blueprint; the decisions a blueprint would have made are listed below. This topic closes Earth and Space; the end-of-strand test is a placeholder until Becky's format gate is passed (architecture, Card 2), so the topic carries no closing material beyond its summary and PP100 — checked, nothing owed here.

Counts. 5 lessons · 5 scripts (146, 144, 144, 141, 146 spoken words by the batch tool's count; the checker's S25 count 149/148/148/145/150) + intro (106 words, 3 question marks, the ready line included) + summary (164 words, opener exact, all five lexicon sentences word for word) · 5 attached questions + the intro's poll + 3 summary questions (key string in video order B C B C B A C B, B 4 of 8) · 51 quiz items (10 + 10 + 10 + 10 + 11) · 16 practice items (14 MCQ, 1 order, 1 typed number; four Grade 3 retrievals first; the four name items last) · PP100 bank 54 items (16 easy · 23 medium · 15 hard; per atom 8 · 12 · 12 · 10 · 12; 46 MCQ, 4 typed, 3 order, 1 multi-select; 14 drawn; MCQ keys A 18 · B 13 · C 9 · D 6) · 65 figures (60 svg, 3 photo placeholders, 2 cartoon placeholders; 5 image briefs). Articles 333 / 333 / 318 / 259 / 388 words (see "Article length").

Decisions made without a blueprint (one line each, with the reason)

• Five lessons, one atom each, in the register's order 020 → 021 → 022 → 023 → 024: every prerequisite edge points backward (021 needs 020; 022 needs 021; 023 needs 022; 024 needs 020 and Grade 3's SPA3-011), and the capstone closes the topic as the architecture row says.
• Four names, not eight: the register (SPA4-021) names full, half, crescent and new; the strip draws all eight shapes but labels the two between half and full "more than half", a description and not a coined word, because a fifth name would be a grade 6-8 word (gibbous) and the register decides.
• "Half Moon", never "quarter Moon": the register's word; the US test name is a question for James (below), built without.
• The lit side is taught in L03 as the clue for ordering ("lit on the right means getting bigger; lit on the left means getting smaller"): without it, a growing crescent and a shrinking crescent are mirror images and no child can order pictures; the article names the simplification in one line ("This is how the Moon looks from the United States. From some other parts of the world, the lit sides are the other way round.").
• The week pattern in L04 is new → half → full → half → new, about a week apart, because the register's example is "a full Moon tonight means a half Moon in roughly a week" and a month is about four weeks; the one "a few nights later" item (crescent lit right → half) keeps the prediction on the named shapes.
• L05 is a mechanism at recognition level, in the register's own sentence: the Sun lights one half; the Moon travels around Earth; we see that lit half from different sides. No eclipse, no angles, no "phase"; the view from far above is one drawing (why_picture) with the Moon at four places and "WE SEE" boxes, used for the headache (boxes off), the three teaching steps (one box each) and the summary.
• Earth's shadow is confronted by name in L05 (headache question, answered at once; a line in the article; a claim item; a bank reason-pick), because it is the most common wrong cause in the literature (Baxter 1989; Stahly, Krockover and Shepardson 1999; Trundle, Atwood and Christopher 2002).
• Grade 3's sentences are quoted word for word: "The Moon makes no light of its own: sunlight lands on it, and it is lit up." (L01, L05); "The Moon travels around Earth." and "One lap around Earth takes about a month." (L05); "orbit" recalled in one L05 line and one practice item. Grade 4 Topic 31 IS on disk (grade4/topic31_build/content/, read-only while it is fixed in parallel) and recalls Grade 3's coin word for word ("Earth travels around the Sun along a path called an orbit"); Topic 32 recalls the same Grade 3 sentence in PR-4 (v2 correction of this line: the v1 record said Topic 31 was not on disk, which was wrong).
• The intro's scene is Ramon's drive home from his grandma's house (a sliver one night, a whole circle two weeks later), not L01's back yard, so the intro never points at the first lesson's example.
• The Moon in the daytime sky is not taught: outside the five atoms; the wording never says the Moon "comes out at night" (the misconception is avoided, not confronted).
• Videos: every lesson is "video and article": every atom here has a picture a child needs to see move (the shape stepping through the month; the cards sliding into order; the Moon moving round Earth with its lit half always toward the Sun).
• No STRAND_INTRO: Topic 17 opened Earth and Space.

Questions for James (one line each; the build did not wait)

1. Should "quarter Moon" be said once beside "half Moon", since some US tests use it? Recommendation: leave it out (one word for one thing; the register says half); add a Grade 5 gloss where the test name is needed. Built without.
2. Is the lit-side rule (right while getting bigger, left while getting smaller) right to teach at Grade 4, with the one-line "from the United States" simplification? Recommendation: keep; ordering pictures is the atom, and the side is the only honest clue. Built so.
3. Should the two unnamed shapes be labelled "more than half" on the strip, or left unlabelled? Recommendation: labelled by description, as built; a blank card under a named row reads as a mistake.
4. L05's article runs 388 words (two recalls, the lit ball, the view from above, three "what we see" steps, the model, the rule). Recommendation: keep it whole with its eight figures and five subtitles (no run over 5 idea lines); a why lesson split by a check loses its chain. Built so.

What each lesson teaches

#### design-check-sequence records

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Skill: design-check-sequence @ efd8fba

Part: L01 (one part)

Type: (a) — one-step facts about the pattern (what changes, how long, how much per night) with claims.

Plan: 10 items: Grade 3 recall (where the Moon's light comes from; 3) → claim (a piece broke off — no) → how long (3, ordered) → what changes (3) → claim (a cloud hides half — no) → what stays the same (3) → how much per night (3, ordered) → TRUE claim (a whole ball on a sliver night — yes) → apply (the 1st → the 29th; 3) → where the rest is (3). Two-option string B B A; three-option A C A A B B A.

Belongs in practice/test instead: the month-later drawing with other dates (PP-17); the reason-pick forms (PP-18).

Part: L02

Type: (a) — one-step naming on the fixed set NAMES (full / half / crescent / new, word for word).

Plan: 10 items: four described → name; three drawn discs → name (half left; crescent right; full — a different side and amount each); two yes / no near misses on drawings (more than half — not full; crescent left — yes); which sentence is true of a half Moon (3); claim (a new Moon has gone away — no). Four-option A D B C C A; three-option A; two-option B A B. Every item is a term item because the atom IS naming; recognition only, the names are in RECALL_BY_MCQ.

Belongs in practice/test instead: the four practice name items (PR-13–16); the bank's types 3, 4, 7.

Part: L03

Type: (b) — a routine: order pictures of the shapes into the month's sequence; the worked example is Ramon's four pictures on the page.

Plan: 10 items: recall of a name on a drawn half (NAMES) → after a new / full Moon, bigger or smaller (3 each) → the side clue on two drawings (crescent left; more right; 2 each) → which shape comes next (two scaffolds; 3 each) → three ORDER items on lettered cards (three growing cards; four from the new Moon; four from the full Moon), keys first night → last night. Three-option A B C B; two-option B A; four-option B. Order items sit in the last third (S32).

Belongs in practice/test instead: the five-card order (PP-40); the multi-select (PP-41m); which half Moon came first (PP-30).

Part: L04

Type: (b) — a transformation routine: predict the shape about a week on; the worked example (full → half → new) is on the page.

Plan: 10 items: recall (about a month; 3) → how far apart (3) → two told cases (half getting bigger → full; half getting smaller → new; NAMES) → three drawn BEFORE cards (full → 1 week → half; half right → 2 weeks → half; crescent right → a few nights → half; the third 3 options) → a dated case (the 3rd → the 17th → new) → claim (full again in a week — no) → TRUE claim (full two weeks after new — yes). Four-option A D B B D; three-option B A A; two-option B A.

Belongs in practice/test instead: three weeks on (PP-42); the crescent-left before card (PP-43); the typed weeks (PR-9, PP-45, PP-46).

Part: L05

Type: (c) — what / why / misconception / transfer on a because-clause: why the lit shape we see changes.

Plan: 11 items: two Grade 3 recalls (own light — no; travels around Earth; 3) → TRUE claim (the Sun lights one half all the time — yes) → the what (lit half faces us → full; faces away → new; NAMES) → the why (why a half Moon; 3 reasons) → the misconception by name (Earth's shadow makes the crescent — no) → what the dark part is (3) → two transfers to an orange and a flashlight (light behind her head → full; light to his side → half) → the month chain (why about a month; 3 reasons). Two-option B A B; three-option A C B C; four-option A D A B. The why sits on a fresh case (not the lesson's ball), the MS Chemistry form is not used.

Belongs in practice/test instead: the model run backward and the model mapping (PP-51, PP-52); the counterfactual (PP-53); the typed Sun and half (PP-48, PP-49).

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The order-key convention (binding on every order item in this topic)

Every lettered card row comes from ONE list, figures.ORDER_SETS[key], in display order; the stem's letters are formatted from it by words(key), and the key is computed by order_key(key, start): the letters from the FIRST night to the LAST, counting on from the starting shape the stem names ("starting from the new Moon" / "starting from the full Moon" / "all while the lit part is getting bigger"). The key is therefore stored in the stem's direction (first → last), checked against the drawing by construction, and no item asks last to first. Letters are J K L M N (outside the option alphabet A–D). The seven items and their keys: L03-q8 q_order_jkl K J L · L03-q9 q_order_jklm K M L J · L03-q10 q_order_jklm2 K J M L · PR-7 pr_order_jklm M K J L · PP-28 pp_order_jkl J L K · PP-29 pp_order_jklm L J M K · PP-40 pp_order_jklmn M N J L K. The adjudicator runs skills/review-lesson/check_order_keys.py on every reader file.

The key strings

• Attached questions, video order (L01 … L05, summary ×3): B C B C B A C B (B 4 of 8, C 3 of 8, A 1 of 8).
• Quizzes: L01 two-option B B A, three-option A C A A B B A · L02 two-option B A B, three-option A, four-option A D B C C A · L03 two-option B A, three-option A B C B, four-option B · L04 two-option B A, three-option B A A, four-option A D B B D · L05 two-option B A B, three-option A C B C, four-option A D A B. No four keys in a row alternate; no position above 60 % in any lesson's same-size set (S7 clean).
• Practice MCQs (14): A B A B A B A B A B D A C B (the NAMES items carry their own letters).
• Bank MCQs (46): A 18 · B 13 · C 9 · D 6; fixed sets NAMES, TIME4, BIG4 keep their order and are counted where they land.

Blind-bundle check

build_tools_blind_bundle.py → bundled 116 mcq, 5 text (3 numeric), 0 frq, 7 order, 1 multi; held 129. Every [Drawing: …] line gives the lit side and how much as a share of the disc ("the right half lit, with a straight edge down the middle"; "a thin slice on the left lit, about one eighth of the disc"; "most of the disc lit, with a thin dark slice on the right"; "none lit: a faint dashed circle on the dark sky"; "all of the disc lit"). Grep of the drawing lines for crescent|quarter|gibbous|full|new|waxing|waning|next: 0 hits ("three quarters" was avoided on purpose — "most of the disc lit" is the data word). Alt text and captions on item figures carry the same data language; no caption says "real".

Freshness: the scene-noun grep

Lesson, quiz, attached and practice scene nouns: back yard, fence, notebook, poster, car, grandma's house, night walk, lamp, ball, stick, blinds, camping trip, porch, Texas, car window, orange, flashlight, sailor, Moon notebook dates (1st / 29th; 3rd / 17th). Grep of the bank body: yard 0 · fence 0 · notebook 0 · poster 0 · car 0 · night walk 0 · lamp 0 · ball 0 · stick 0 · blinds 0 · camping 0 · porch 0 · Texas 0 · orange 0 · flashlight 0 · sailor 0 · window 0 · grandma 0. "calendar" 2 (bank only: the quiz's dated item names no calendar). The bank's model items moved from "a dark gym with a lamp and a ball" (the lesson's scene re-roomed) to "a stage with a spotlight and a balloon", and their MOVES changed (run backward; map the parts), because the quiz already holds the forward move on an orange and a flashlight.

The 2 October rules, applied

Misconception rows and what was done

Checker results

• python3 build_tools_check_topic.py grade4/topic32_build/content/G4T32.py → 0 FAIL, 16 WARN. The WARNs: twelve S8 "beat carries 3–4 sentences" (kept: the elementary form speaks short sentences in one take; every beat is under 40 words and the scripts are 141–150 words); four S36 words — th ×22, rd ×4, st ×3, nd ×2 (kept: these are the suffixes of date ordinals "29th", "3rd", "1st", "2nd", which a 9-year-old reads daily; the dates are the item's data). Earlier S36 hits "simply", "gotten", "shrink", "shrunk", "unlit", "gym" were swapped for plain words or re-scened. S36 unusual_words=4 · S38 fragments=0 · S29 0 · S39 0 · S37 0 · S30 typed=2 fail=0 warn=0 · S35 0.
• python3 grade4/check_g4_articles.py … → 0 FAIL. Scripts 149 / 148 / 148 / 145 / 150; intro 106; summary 164 with the opener. Article WARNs: L01 333, L02 333, L03 318, L05 388 (next section).
• check_svg_ids.py figures.py → PASS (ids found 0).
• build_tools_names.py Tanaka Piper Ramon Riley → all free, exit 0.
• build_tools_video_batch.py → 7 videos, handoff/G4T32/videos/batch_G4T32.json + READY.md; check_brief.py → every lesson and the summary clean; the INTRO's "no closing bullets" hit is the standing accepted one (an intro has no rule slide); intro/questions at the limit (3). grep -ci strand batch.json → 0. Not sent (James's word is needed for Grade 4's first batch).
• Blind bundle cut to blind/2026-10-02/ (section above).

Article length

L01 333 (22 idea lines, 8 figures, 3 subtitles), L02 333 (19 / 8 / 7), L03 318 (21 / 5 / 4), L04 259, L05 388 (21 / 8 / 5). Reasons for the WARNs: L01 carries the whole month and the two photos plus the clouds line; L02 coins four names, each on its own card with its "we call" line, plus the near miss; L03 carries the worked example twice (mixed up, then in order) and the two halves of the month; L05 is the why chain with three "what we see" steps on three figures. In every article a subtitle or figure sits every ≤ 6 idea lines (S16 clean), so each screen stays bite-sized; a split by a check would break L03's routine and L05's chain. James's call stands (question 4).

Judgement calls

• "Sliver" is the register's own word; L01 glosses it once ("A sliver is a thin curved slice of light.") rather than replacing it, because the quizzes and the bank lean on "thin sliver" as the everyday clue for a crescent before the name is coined.
• "Disc" is used only in blind text and alt text (not student-facing prose); the articles say "the whole circle" and "the lit part".
• Yes / no claims in the bank take the "Which sentence shows she is wrong?" reason form (four single sentences), as Topic 22 did, so every bank MCQ has four options (S11) and no option bundles a verdict with its reason.
• The "you cannot tell from one picture" distractor appears on PP-23/24/30 only, where the lesson taught that the side DOES tell you; it is a belief a child holds, not padding.
• The new Moon drawn as a faint dashed circle is a convention; L02's card caption states it ("The dashed circle shows where the Moon is.") and every item on it is a name item, where the data ("none lit") is the cue and the name is the answer.
• PP-17 and L01-q9 share a move (a drawing a month later) with different dates; both kept because a quiz and the bank are never served together, and the bank's version has four options with the lit side named.
• The intro's three question marks sit at the limit: two real asks ("What happened to the Moon in those two weeks? And what will it look like next week?") plus the ready line; folding them into one would lose the forward-looking question that L04 answers.

Sentence-atomise self-check (summary)

Every idea line, headache, forest line, caption and fb / why was read for: one idea per sentence (≤ 22 words, S1 clean after six splits in L03 and L05); a named actor ("the lit part", "the Moon", "the Sun", "we"); the verb carrying the cause ("lights", "faces", "travels", "gets bigger"); the link stated ("so", "because"); the plain word before the term ("a whole lit circle … a full Moon"). Six L03/L05 lines were split at the colon or the second clause; "Here are Earth and the Moon, seen from far above…" was cut as a duplicate of its figure's caption.

Names run

python3 build_tools_names.py Tanaka Piper Ramon Riley → Tanaka free · Piper free · Ramon free · Riley free · exit 0. No other name is used; "Miss", never "Mr." or "Ms.".

Owed

• Blind review (a non-author reads blind/2026-10-02/BLIND_BUNDLE_G4T32.md; the adjudicator runs check_order_keys.py on every reader file against KEYS_SEQUESTERED_G4T32.json).
• review-figures and review-questions by a non-author agent (author self-check only so far).
• The videos: batch built and checked, NOT sent; James's word is the cue.
• The picture pass (3 photos, 2 cartoons) waits for James's sign-off on the questions above (a topic with a question for him waits).
• Nothing committed (the brief: commit nothing).

v2 — reviews applied (2 October 2026)

Skill: course-build → write-lesson (L02, L03, L04, L05 lines) · write-video-script (L05 beat 4) · write-mcqs (every item change; check_key_tells.py → 0) · write-explanation (fb and why lines) · review-figures (author re-render after the drawer changes) @ fb37d14

In plain words. The blind read (two readers), the guidance review and the non-author figure review were all on disk; every Essential and Worth-fixing row is applied in place. Every key keeps its letter and meaning except where a row said otherwise (six bank keys re-lettered to D; L03-q6 recast as an amount question; the five practice items the readers found were quiz twins now sit on fresh instances). One sentence in L05 was wrong and is fixed ("In between" → "Half way"). Three items no longer teach that a Moon you cannot find in the night sky is a new Moon. The "more than half lit" option is a distractor twice (L03-q7, PP-45) and a key three times (L03-q6, PP-20, PP-27), and PP-27's four options share one shape. The disc alt and blind text never say "half" or "most". Order-card letters sit under their cards. The figure review's six must-fix items are done or recorded.

#### Finding → change

Deliberately omitted: why the full Moon is not in Earth's shadow (the Moon's path is tilted, so it usually passes above or below the shadow) — grade 6-8; the why-picture draws no shadow and the article names Earth's shadow only as NOT the cause.

#### Checker lines (v2)

• build_tools_check_topic.py → 0 FAIL, 16 WARN (the same twelve S8 3–4-sentence beats and four S36 date-ordinal suffixes as v1, kept for the reasons recorded above).
• check_g4_articles.py → 0 FAIL; scripts 150 / 148 / 148 / 145 / 150; articles 334 / 334 / 319 / 261 / 358; intro 106; summary 164, opener exact.
• check_key_tells.py → KEY TELLS: 0 of 117 MCQs flagged (a: 0, b: 0, c: 0) (v1: 8 of 117).
• build_tools_names.py Tanaka Piper Ramon Riley → all free, exit 0.
• check_svg_ids.py figures.py → PASS (58 figures, 0 ids).
• build_tools_video_batch.py → 7 videos, handoff/G4T32/videos/batch_G4T32.json rebuilt; check_brief.py → L01–L05 and the summary clean; the intro's "no closing bullets" line is the standing accepted one; grep -ci strand → 0. Not sent.
• Blind bundle re-cut to blind/2026-10-02-v2/ (116 mcq, 5 text, 7 order, 1 multi; held 129); grep of the [Drawing: lines for crescent|quarter|gibbous|full|new|waxing|waning|next|half → 0.
• Renders opened: strip_named, strip_headache, diary_8, week_cards, why_seen, why_new, why_half, lit_ball, the seven order-card sets, pr_disc_crescent_l, q_disc_more_l, pp_before_new, pp_disc_half_l, card_more, month_anim, model_cartoon, moon_full_photo (headless Chrome, 900 px); the built site /tmp/g4t32_v2.html screenshotted on the L01–L05 article routes, the L03 quiz, the practice and the PP100 routes at 1200 px and in a true 360 px iframe, cut into chunks and read: every disc, strip, card row, why-picture and table in frame; letters under the cards; the placeholders print one plain note.

#### Key strings (v2)

• Attached questions, video order: B C B C B A C B (unchanged).
• Quizzes: L01 two-option B B A, three-option A C A A B B A · L02 two-option B A B, three-option A, four-option A D B C C A · L03 two-option B A, three-option A B C B, four-option B · L04 two-option B A, three-option B A A, four-option A D B B D · L05 two-option B A B, three-option A C B C, four-option A D A B (unchanged from v1; L03-q6's key sits at C in its new option set).
• Practice: three- and four-option A B A B C B D A C B; two-option (yes / no) A B B, (bigger / smaller) B.
• Bank MCQs (46): A 11 · B 13 · C 10 · D 12; tiers 16 easy · 25 medium · 13 hard; per atom 8 · 12 · 12 · 10 · 12.
• Order keys (first night → last): L03-q8 K J L · L03-q9 K M L J · L03-q10 K J M L · PR-8 M K J L · PP-28 K L J · PP-29 L J M K · PP-42 M N J L K.

#### Changed ids

Scripts: L05 beat 4. Articles: L02 (new-Moon lines), L03 (one line), L04 (one line), L05 (three lines; 358 words). Quizzes: L01-q6, L01-q9, L02-q2, L02-q7, L02-q9, L02-q10 (source), L03-q6, L03-q7, L05-q2, L05-q7 (fb), L05-q8, L05-q9, L05-q10. Summary: SUM-q3. Practice: PR-1, PR-2, PR-4, PR-6, PR-7, PR-9, PR-11, PR-13. Bank (v2 numbering): PP-1, 9, 17, 18, 20, 21, 27, 28 (why), 40, 41, 45, 48, 49, 52, 53, 54; the accept lists. Figures: PHASES, _label_lines, _row, strip8, diary, month_anim, week_cards, why_picture, lit_ball, order_cards, ORDER_SETS["pp_order_jkl"], worked_ordered, the placeholders and briefs; seven keys deleted.

#### Judged differently, and why

1. The new-Moon stems say "none of the Moon's lit part faces us", not "none of the Moon is lit". L05 teaches, and L05-q3 keys as TRUE, that the Sun lights one half of the Moon on every night; a bank stem saying "none of the Moon is lit" would contradict that key. The L02 forest line's own words carry the review's point (the datum, not "cannot find it in the night sky").
2. PR-4's "a lap" → "a spin". Both readers found "a lap" defensible once PR-3's stem made "lap" the course's word for one trip (it is Grade 3's word, quoted word for word). Cutting "along its orbit" from PR-2 removes the give-away but not the second defensible answer, so the distractor became Topic 31's own sister ("a spin"). The key stays B, "an orbit".
3. PP-18's second absurd distractor ("Clouds only hide the Moon in the daytime") was replaced as well as the third, with Baxter's size belief ("The Moon ball itself is smaller tonight."), because E5 named two absurd distractors and the rewrite table gave one line.
4. L05-q2 and PR-2 options are three short sentences, not "Earth" / "the Sun" / "nothing": the key-tell checker reads a lone capital as a shape tell, and "Earth" cannot be written lower-case.
5. Table and rule-card text sizes were left at the shared drawer's 11–12 units and recorded as desktop-first, as the figure review allowed; the drawer is Topic 18's.
6. L03-q6's key sits third so L03's three-option string stays A B C B (first placed, it read A B A B).

#### Owed after v2

• A second blind read on blind/2026-10-02-v2/ (the adjudicator runs check_order_keys.py against KEYS_SEQUESTERED_G4T32.json; PP-28's key is now K L J).
• The coordinator's second figure pass if wanted (the six must-fix items are applied; the shared-drawer sizes are recorded, not changed).
• The videos: batch rebuilt and checked, NOT sent.
• Nothing committed.

v3 — polish (2 October 2026)

Skill: course-build → write-mcqs (every item change; check_key_tells.py at 0) → write-explanation (every changed fb and why) @ e23b67f

In plain words. A third cold reader (Reader C) read the whole v2 bundle, 129 items, and agreed every key (PP-48's key D is the reader's own answer, so it stands). Four polish flags were left, all about the look of an option set or a stem that leaned on an unstated start: a key that was the only option not written "a … Moon"; a one-week prediction from a thin crescent that two honest roundings answered two ways; a quiz stem that was the lesson's attached question word for word; two items whose three "lit" distractors made the one "ball" key the odd one out; and a which-came-first stem that assumed the month starts at the new Moon. All applied. No key letter changed; the two keys whose stems changed (PP-45, L04-03) keep their letters; no tag, order set or order_key() changed. Blind bundle re-cut; the batch was not rebuilt (no script line changed) and is not sent; nothing committed.

#### Flag → change

#### Checks after v3

• python3 build_tools_check_topic.py grade4/topic32_build/content/G4T32.py → 0 FAIL, 16 WARN (the same twelve S8 3–4-sentence beats and four S36 date-ordinal suffixes as v2; th is now ×30 because L04-03's dates add "6th" and "13th"). S30 typed=2 fail=0 warn=0 · S38 fragments=0.
• python3 grade4/check_g4_articles.py grade4/topic32_build/content/G4T32.py → 0 FAIL; articles 333 / 334 / 319 / 261 / 358; scripts 150 / 148 / 148 / 145 / 150; intro 106; summary 164, opener ok.
• python3 ~/Documents/CourseBuilding-Vault/skills/write-mcqs/check_key_tells.py grade4/topic32_build/content/G4T32.py → KEY TELLS: 0 of 117 MCQs flagged (a: 0, b: 0, c: 0); KEY LONGEST (any margin) 33 of 117, fixed-set exempt 67.
• python3 ~/Documents/CourseBuilding-Vault/skills/review-figures/check_svg_ids.py grade4/topic32_build/content/figures.py → PASS (58 figures, 0 ids).
• python3 build_tools_names.py Tanaka Piper Ramon Riley → all free, exit 0.
• python3 build_tools_build_topic_site.py grade4/topic32_build/content/G4T32.py /tmp/g4t32_p.html → 5 lessons, 16 practice, 54 pp100, 58 figures.
• Batch: not rebuilt (no script line, attached question or summary question changed; grep -c "6th of the month" batch_G4T32.json → 0, so the quiz change is not in it); not sent.
• Blind bundle re-cut: blind/2026-10-02-v3/ — 116 mcq, 5 text (3 numeric), 7 order, 1 multi; held 129; adversarial rows 2. Grep of the [Drawing: lines for crescent|quarter|gibbous|full|new|waxing|waning|next|half → 0.

#### Counts and key strings after v3

Unchanged from v2: 5 lessons · 51 quiz items · 5 attached + 3 summary questions (B C B C B A C B) · 16 practice · bank 54 (46 four-option MCQs, 4 typed, 3 order, 1 multi-select; per atom 8 · 12 · 12 · 10 · 12; 16 easy · 25 medium · 13 hard; MCQ keys A 11 · B 13 · C 10 · D 12); every quiz, practice and attached key string as in v2 (no option moved position; PP-20's and PP-45's new sets keep their keys at the same letter); order keys as in v2.

#### Item ids changed in v3 (for the mini re-read)

Lesson quizzes: L01-06 (option C, fb) · L04-03 (stem, fb, why). Bank: PP-05 (option B) · PP-20 (options, why) · PP-30 (stem, why) · PP-45 (figure, stem, options, hb, why). Records: this section; TYPES_G4T32.md (v3 note, the type-13 row, the ⟂ list); the bank file header.

#### Judgement calls, v3

1. L04-03 keeps the half-right → one week → full move. NAMES is a fixed set and the key letter A (a full Moon) is kept, so the only one-week step to a full Moon starts at a half Moon that is getting bigger; the re-scene changes the night (two dates) and the clue (the lit side, which L03 taught, instead of "getting bigger"), so the quiz no longer prints the gate's stem and the item leans on L03's rule as well as L04's. A new Moon two weeks on would have handed L04-10 (the TRUE claim) its answer and repeated SUM-02.
2. PP-45 reuses pp_before_half_l (PP-35 asks one week from the same card; PP-45 asks two). Two bank items on one drawing with different moves is the pattern PP-10 / PP-24 already set on pp_disc_half_l; the pair is on the type sheet's ⟂ list because PP-35's why is PP-45's first step. PP-45 is the mirror of L04-06 (half right → two weeks → half) with the lit side in the options, which is the extra step that makes it hard.
3. "How bright the Moon looks" as the ball-kind distractor (L01-06, PP-05): a nine-year-old knows a full Moon is brighter than a sliver, so it is a real thing that changes, and it carries no "lit" word; "the Moon's color" or "how far away the Moon is" would have been a second key (they stay the same).
4. PP-20's options describe, not name. The item's type (7, tell the shapes apart) asks which words fit a drawn disc; four amount-and-side phrases in one shape leave no odd one out, and the lesson's own description "more than half lit" stays the key.

#### Owed after v3

• pp_before_crescent_l is now on no page (PP-45 moved to pp_before_half_l); figures.py was outside this pass's files, so it is left for the next figures edit (delete, or place on a fresh item).
• A mini re-read of the six changed items above (blind/2026-10-02-v3/) by a reader who has not seen the keys.
• James's questions on the Needs-you page (records/REVIEW_NEXT_G4T32.md → course_preview/review/REVIEW_NEXT_G4T32.html); the picture pass (3 photo and 2 cartoon placeholders) waits on them.
• James's notes on the scripts are the cue to send the seven-video batch.

Nothing committed.

Skill: course-build → write-mcqs → write-explanation @ efd8fba (v1); v2 renumbering and rewrites after the blind read, the guidance review and the figure review @ fb37d14; v3 polish after Reader C's full re-read @ e23b67f

Topic 32 — question types in the PP100 bank, one exemplar each (2 October 2026)

James reviews a bank as its question TYPES first, one exemplar each (vault: 50 Decisions/A bank is reviewed as its question types first, one exemplar each.md). This sheet lists the types the Grade 4 Topic 32 bank runs on and prints one exemplar per type as it ships in content/G4T32_pp100_bank.py. The bank is built (James, 2 Oct 2026: Grade 4 goes straight to the lessons); the sheet is the reading order, not a gate.

One cluster. The topic is one PP100 cluster of five atoms (SPA4-020 → 021 → 022 → 023 → 024, capstone 024). Items per atom: 8 · 12 · 12 · 10 · 12 = 54. Tiers (v2): 16 easy · 25 medium · 13 hard (4 typed, 3 order, 1 multi-select, 7 drawn discs, 4 drawn BEFORE cards, 3 drawn card rows). SPA4-020 carries easy and medium; 021 easy and medium; 022 easy to hard; 023 medium and hard; 024, the capstone, medium and hard only. MCQ keys (v2) A 11 · B 13 · C 10 · D 12 (of 46). v2 renumbering (2 Oct 2026): PP-48 (typed: the Sun) and PP-50 (the why) were retagged medium and joined the medium block after its last item, so they are now PP-40 and PP-41; the hard tier runs PP-42–54 (old 40→42, 41→43, 42→44, 43→45, 44→46, 45→47, 46→48, 47→49, 49→50; 51–54 unchanged). Every PP number below is the v2 built position.

v3 (2 Oct 2026, Reader C's re-read; keys and numbering unchanged). PP-20's options are four bare phrases of one shape ("the whole circle lit" / "half lit, on the left" / "more than half lit, on the left" / "a thin sliver lit, on the left"); PP-45 starts from a half Moon lit on the left (pp_before_half_l) and asks two weeks on (key "a half Moon lit on the right"; "more than half lit, on the right" and "a new Moon" are the distractors), because a thin left crescent plus one week reached two answers by rounding; PP-30's stem names its start ("Starting from a new Moon, a girl's month of Moon pictures shows two half Moons…"); PP-5's second option is "how bright the Moon looks to him", a distractor of the key's kind. Type 13's hard end is now the two-week run through the new Moon.

Fixed sets whitelisted from the length check by name: NAMES (a full Moon / a half Moon / a crescent Moon / a new Moon — "a crescent Moon" is the longest word under every item, so no cue exists); TIME4 (about a day / week / month / year, ordered); BIG4 (It gets bigger. / It gets smaller. / It stays the same. / It changes … with no pattern.).

The bar list (things a generated bank must never use because they break a taught claim or a rule): "phase", "waxing", "waning", "gibbous", "quarter Moon" (grades 6-8 and the US test names — a question for James); "the Moon grows / shrinks" (the lit part we see gets bigger / smaller); "Earth's shadow" as a key (it is named only as the belief a key corrects); why the full Moon is not in Earth's shadow (deliberately omitted — the tilted path is grade 6-8); "the Moon makes its own light" as a key; an eclipse; the Moon in the daytime (outside the five atoms); "gravity"; the lit side the other way round (the course draws the US sky: lit on the right while getting bigger); any lesson, quiz, attached or practice scene (a back yard and fence, a notebook, a poster, a car and grandma's house, a night walk, a lamp and a ball on a stick, blinds, a camping trip, a porch, Texas, a car window, an orange and a flashlight, a sailor); "strand"; "biggest / smallest" for a count or a time.

⟂ draw constraints (pairs never served in one PP100 draw: one item states what another asks):

• PP-2 (about a month, TIME4) ⟂ PP-47 (type the number of weeks to the next new Moon: 4 / a month) ⟂ PP-51 (why about a month).
• PP-36 (how much is lit at one time: one half) ⟂ PP-50 (type the amount: half) ⟂ PP-41 (the why: "the Sun lights one half" is its first idea) — and PP-36 ⟂ PP-39 (the dark part is the half the Sun is not lighting).
• PP-37 (whole lit half faces Earth → full) ⟂ PP-52 (a balloon shows a new Moon → where is the light) — the second's why names the first's rule.
• PP-35 (half lit on the left tonight → one week → new) ⟂ PP-45 (the same card → two weeks → half lit on the right): PP-35's why is PP-45's first step (v3).
• PP-46 (type weeks from full to new: 2) ⟂ PP-34 (a calendar: full on the 10th → the 24th) ⟂ PP-32 (full tonight → one week → half).
• PP-15 / PP-16 (after a new / full Moon the lit part gets bigger / smaller) ⟂ PP-23 / PP-24 (drawn disc: getting bigger or smaller) ⟂ PP-30 (which half Moon came first) — the rule items hand the drawn items their rule.
• PP-27 (the shape just before a full Moon: more than half lit, on the right) ⟂ PP-20 (which words fit this shape: more than half lit).
• PP-11 (a Moon lit on one side with a straight edge → half Moon) ⟂ PP-19 (which of these is a half Moon: the stem phrase is the key option) — reader B.
• Near-duplicate pairs, draw one: PP-7 (a whole bright circle over the field → full) and PP-12 (drawn full disc → full); PP-9 (none of the lit part faces the club → new) and PP-21 (at a new Moon, where is the Moon).
• Quiz-side constraints (served together on one page, so an ORDER constraint, not a draw one): L01-q4 ⟂ L01-q6 (the same contrast inverted; q6's third distractor is now the lit side); PR-2 ⟂ PR-4 (PR-2 no longer says "orbit"; PR-4's distractor is "a spin", so "lap" in PR-2 and PR-3 hands nothing over).

The types

(Numbering in type_ follows this table; PP numbers are positions in the built, tier-sorted bank.)

The exemplars, in full

Type 1 — PP-1 (easy, SPA4-020). A lighthouse keeper in Maine looks at the Moon every clear night for a month. What does she see change?

Options: the size of the Moon ball · the color of the Moon · how far away the Moon is from Earth · the lit part of the Moon (v2: key at D).

Why: The Moon itself stays a whole ball. The part of the Moon we see lit changes a little each night. So she sees the lit part change.

Type 2 — PP-2 (easy, SPA4-020). About how long does the Moon take to go through all its lit shapes and come back to the same one?

Options: about a day · about a week · about a month · about a year.

Why: The Moon's lit shape changes a little each night. It comes back round in about a month. So the Moon takes about a month.

Type 3 — PP-7 (easy, SPA4-021). At a baseball game, a girl sees the Moon as a whole bright circle over the field. What is this shape called?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: A full Moon is a whole lit circle. The girl sees a whole bright circle. So this shape is a full Moon.

Type 4 — PP-8 (easy, SPA4-021; figure pp_disc_crescent_l). [A square of dark blue night sky with the Moon in it: a thin slice on the left lit, about one eighth of the disc.] Look at this Moon. What is this shape called?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: A crescent Moon is a thin curved sliver of light. Only a thin curved sliver of this Moon is lit, on the left. So it is a crescent Moon.

Blind text (data, no name): "disc: a thin slice on the left lit, about one eighth of the disc". (v2: no disc's blind or alt text says "half" or "most" — a half is "the right side lit, up to a straight edge down the middle"; more than half is "the disc lit except for a thin dark slice on the left".)

Type 5 — PP-15 (easy, SPA4-022). Last night was a new Moon. Over the next ten nights, what happens to the lit part of the Moon?

Options: It gets bigger. · It gets smaller. · It stays the same. · It changes from night to night with no pattern.

Why: From new Moon to full Moon, the lit part gets bigger each night. The nights after a new Moon are the start of that run. So the lit part gets bigger.

Type 6 — PP-17 (medium, SPA4-020). A girl draws the Moon as a whole bright circle on the 2nd of the month. About what will her drawing look like on the 30th?

Options: a whole bright circle again · a thin sliver lit on the left · half of a circle, lit on the left · no Moon at all.

Why: The Moon's lit shape comes back round in about a month. The 30th is four weeks after the 2nd, about a month. So her drawing is a whole bright circle again.

Type 7 — PP-19 (medium, SPA4-021). Which of these is a half Moon?

Options: the Moon as a whole bright circle · the Moon lit on one side, with a straight edge down the middle · the Moon as a thin curved sliver · the Moon with most of its circle lit and a thin dark slice on one edge.

Why: A half Moon is lit on one side, with a straight edge down the middle. Only the second Moon has one side lit with a straight edge. So that one is a half Moon.

Type 8 — PP-18 (medium, SPA4-020). On a clear night with no clouds, a boy sees half of the Moon lit, and his sister says a cloud must be hiding the other half. Which sentence shows she is wrong?

Options (v2): Earth's shadow is covering the other half of the Moon. · The Moon ball itself is smaller tonight. · The other half of the Moon has broken off and will come back next month. · The other half of the Moon is there, just not lit.

Why: The sky is clear, so no cloud is in front of the Moon. The other half of the Moon is there, in the dark, and it is too dark to see. So the sister is wrong.

Type 9 — PP-23 (medium, SPA4-022; figure pp_disc_crescent_r). Look at this Moon. Is the lit part getting bigger or getting smaller each night?

Options: getting bigger · getting smaller · staying the same · you cannot tell from one picture.

Why: From new Moon to full Moon, the lit part gets bigger and is on the right. This Moon is lit on the right. So the lit part is getting bigger.

Type 10 — PP-25 (medium, SPA4-022). Tonight the Moon is a crescent Moon lit on the right. Which named shape comes next?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: From new Moon to full Moon, the lit part gets bigger and is on the right. Tonight's crescent is lit on the right, so the lit part is getting bigger. So the next named shape is a half Moon.

Type 11 — PP-29 (medium, SPA4-022; figure pp_order_jklm, cards J crescent lit right · K all lit · L none lit · M right side lit to a straight edge). Cards J, K, L and M show the Moon on four nights in one month, starting from the new Moon. Tap the cards in order, from the first night to the last.

Key (first → last): L, J, M, K (computed by figures.order_key("pp_order_jklm", "new") from the one list ORDER_SETS).

Why: The month of shapes starts at the new Moon, L. The crescent J and the half M are lit on the right, so the lit part was getting bigger: J, then M. The full Moon K comes last, so the order is L, J, M, K.

Type 12 — PP-31 (medium, SPA4-023). Tonight the Moon is a new Moon. About what shape will the Moon be one week from tonight?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: New Moon, half Moon, full Moon and half Moon come about a week apart. Tonight is a new Moon. So one week from tonight, the Moon is a half Moon.

Type 13 — PP-32 (medium, SPA4-023; figure pp_before_full). [A square of night sky, the whole disc lit, chip TONIGHT.] Here is the Moon tonight. About what shape will it be one week from tonight?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: Tonight the whole circle is lit, so tonight is a full Moon. One week after a full Moon, we see a half Moon. So one week from tonight, the Moon is a half Moon.

Type 14 — PP-37 (medium, SPA4-024). Tonight the Moon is on the far side of Earth from the Sun, so its whole lit half faces Earth. What shape do we see?

Options: a full Moon · a half Moon · a crescent Moon · a new Moon.

Why: The Sun lights one half of the Moon. When the whole lit half faces us, we see a whole lit circle. So we see a full Moon.

Type 15 — PP-41 (medium in v2, SPA4-024). Why do we see different lit shapes of the Moon through the month?

Options: The Sun lights a different amount of the Moon on each night of the month. · We see the Moon's lit half from different sides as it travels around Earth. · Earth's shadow covers a different amount of the Moon on each night of the month. · The Moon turns its dark side toward the Sun once a month.

Tag (v2): medium — the taught chain is picked, not built; the hard end of the type is PP-51 (why about a month), which chains the lap and the lit half.

Why: The Sun lights one half of the Moon on every night. As the Moon travels around Earth, we see that lit half from different sides. So the lit shape we see changes through the month.

Type 16 — PP-43 (hard, SPA4-022, multi-select). Select every Moon whose lit part is getting bigger each night.

Options: a crescent Moon lit on the right · a half Moon lit on the left · a half Moon lit on the right · a crescent Moon lit on the left.

Hard because: a set answer — every right-lit shape must be picked and both left-lit shapes left out.

Type 17 — PP-46 (hard, SPA4-023, numeric). A hotel calendar marks tonight as a full Moon. In about how many weeks will the Moon be a new Moon? Type the number of weeks.

Accept: 2 · two · 2 weeks · two weeks · about 2 · about two weeks · in 2 weeks · … (list WEEKS2).

Hard because: the number is produced from the week pattern, not picked.

Type 18 — PP-40 (medium in v2, SPA4-024, text). The Moon makes no light of its own. Type the name of the thing whose light lights up the Moon.

Accept: the Sun · Sun · sun · sunlight · the Sun's light · light from the Sun · … (list SUN).

Tag (v2): medium — a Grade 3 fact recalled in one step; the hard typed item of the type is PP-50 (how much the Sun lights: half).

Type 19 — PP-52 (hard, SPA4-024). On a dark stage, one spotlight shines. A boy holds a white balloon at arm's length, and it shows him the shape of a new Moon. Where is the spotlight?

Options (v2): behind his head, shining past him · off to his left side, level with the balloon · straight above the balloon, pointing down · behind the balloon, away from him.

Hard because: transfer to a model, run backward — the shape seen is given and the position of the light must be worked out.

Type 20 — PP-54 (hard, SPA4-024). Imagine the Moon stopped traveling around Earth and stayed in one place on its path. What would happen to the lit shape we see?

Options (v2): It would stay almost the same shape from one night to the next. · It would change faster than it does now. · It would be a full Moon on every night of the month. · It would be a new Moon on every night of the month.

Hard because: a counterfactual — the cause is removed and the student must say what the pattern would do.

Design-move inventory (every bank item: the move, the scene kind, the nearest lesson-side instance)

PP numbers in this inventory are the v1 positions; read them through the v2 renumbering line at the top (48→40, 50→41, 40→42, 41→43, 42→44, 43→45, 44→46, 45→47, 46→48, 47→49, 49→50). The practice rows changed in v2: PR-6 is a drawn crescent (left), PR-7 a drawn more-than-half (left), PR-9 a drawn new-Moon BEFORE card, PR-11 a yes / no on the lit half — none is a quiz item any more.

Skill: course-build → review-lesson (Roles B, B2) · review-questions · review-accuracy @ fb37d14 — non-author review, filed by the coordinator from the reviewer's report

Topic 32 — guidance, questions and accuracy review, 2 October 2026

Sound science taught in the right order; every record claim re-ran true; the seven order keys all derive from ORDER_SETS (one-list claim verified); PP-26 corrected; the why-picture's geometry right for the US sky. Three things must change: the key-tell checker to zero (line missing from the record); a wrong sentence in L05's script ("In between, we see a half Moon"); three items teach that a Moon you cannot find on a clear night is a new Moon, planting the "dark Moon in the night sky" picture.

Key-tell checker: KEY TELLS: 8 of 117 MCQs flagged (a: 5, b: 1, c: 2).

Rulings on the readers' flags: PP-52 and L05-q9 — cut "from the side" / "from one side". Alt/blind "the left/right half lit" — fix ("half" is the option word). "More than half lit" the key every time — fix (E4). PR-04 — keep the typed item; cut "along its orbit" from PR-02 instead. L01-06, PR-01, the ⟂ pairs — fix.

Essentials

E1 key tells to zero. E2 L05 script beat 4 falsehood. E3 the "half" alt/blind text (L02-03, L03-01, PR-06, PP-10, the before-cards). E4 "more than half lit" a distractor somewhere; its items share the key's shape. E5 PP-46 (only calm sentence) and PP-18 (two absurd distractors).

Worth fixing

W1 the new-Moon-at-night picture (L02 line; L02-q2, PP-9, PR-13). W2 practice reuses quiz items (PR-06 = L03-q1, PR-07 = L03-q5, PR-09 = L04-q5, PR-11 = L05 attached; unused discs exist). W3 D starved: re-letter PP-1, 17, 21, 27, 46, 52 to D → A12 B13 C9 D12. W4 PP-50 and PP-48 → medium. W5 PP-43 shape. W6 PP-54 "almost". W7 article imperatives. W8 record errors (Topic 31 IS on disk; 53/45 header; type-sheet hard-tier numbering off by one).

Leave

The why-picture's full Moon behind Earth with no shadow explanation (record as deliberately omitted — grade 6-8). "About a week apart"; "a month is about four weeks". The US line article-only. PP-47 distractor C. PP-22's closer; PP-41.

Author's questions: 1 quarter Moon — no. 2 lit-side rule with the US line — yes. 3 label "more than half" — yes, with E4. 4 L05 — keep whole, trimmed to ~360 (cut the orbit recap; fold the dark-half line).

Skill: review-figures @ fb37d14 — non-author figure review with the page pass, filed by the coordinator from the reviewer's report

Topic 32 — figure review, 2 October 2026

What a student notices first: a clean, honest set of Moon discs — the lit side right on every disc, a half a true half with a straight edge, a crescent a thin slice, the why-picture with no shadow anywhere near the Moon. The drawings are right; the faults are letters, alt text and phone size.

Must fix before a cold read

1. Order-card letters sit on the Moon. On every _order_ card the letter (x+12) overlaps the disc; where the disc is lit on the left the letter is white on cream and vanishes (J on q_order_jklm, J on q_order_jklm2, L and N on pp_order_jklmn, K on pr_order_jklm). Fix in order_cards: disc at r = 0.30·s with the letter in a clear corner, or the letter in a chip under the card.
2. Alt and blind text hand over "half" (blind_of in q_disc / before_card): L02-03, L03-01, PR-06, PP-10 read "the right/left half lit, with a straight edge down the middle" while the key is "a half Moon"; same alt under L04-05/06, PP-33/35. Say "the lit part is on the right, and its inner edge is a straight line down the middle of the disc." PP-20's "most of the disc lit" brushes "more than half lit" → "lit except a thin dark slice on the right".
3. Phone text. At a 278 px column: strip_named labels 5.0 px, diary_8 DAY 4.9, week_cards 5.5 / "1 WEEK" 4.4, table_weeks 7.4, why_* labels 4–5.5 and WE SEE 4.0, order letters 8.7–10.7, TONIGHT 8.7, lit_ball 9.3, name cards 11.3. Text ≥ 14 units in the why-picture and strips; WE SEE ≥ 12; or record them as desktop-first teaching figures.
4. why_seen / why_new: the leader to the Sun-side WE SEE box crosses the label "the Moon". Move the label or route the leader from the disc's lower-left.
5. Seven keys on no page (below); six byte-identical to a placed key.
6. Placeholder notes print on the page ("photo: the real Moon…", "…the pipeline draws it"). Note → "the Moon"; keep pipeline words out of student view.

Page pass

Every figure renders alone and whole at 1200 px and in a true 360 px iframe; no duplicate-id bleed. check_svg_ids.py: 65 figures, 0 ids, PASS. Bbox pass 65/65 clean; disc frames 320 wide (the page floor). month_anim animates.

Lit-side audit

crescent_r 12 % right · half_r 50 % straight edge · more_r 82 % dark slice left · full · more_l · half_l · crescent_l · new (dashed ring): all PASS. Every instance checked (strips, diaries, week cards, name cards, worked cards, 7 order sets / 24 cards, 8 q_disc and 6 before_card shapes, why_* four Moons lit on the Sun half with WE SEE boxes in counter-clockwise order, lit_ball): PASS. Order cards: stem letters from one list; no set shows the nights in order (pp_order_jkl shows the first night first — minor). Why-picture: no shadow drawn; nothing reaches any Moon.

Unplaced (7)

q_disc_new, q_disc_more_l, q_before_half_l, pp_disc_half_r, pp_disc_more_r, pp_before_new, pr_disc_crescent_l → delete, unless the guidance review's fresh practice items (PR-06 → pr_disc_crescent_l; PR-09 → a left-lit half TONIGHT card; PR-07 → q_disc_more_l) use them — the fix pass decides.

Briefs, minor

All five briefs complete bar the eye-first line; model_cartoon asks for "turning slowly" (a still cannot) and four people with no faces guidance; yard_cartoon leaves the Moon's size open. lit_ball labels the halves, not the ball; faded Moons at 0.35 opacity acceptable; worked_shuffled shown twice (teaching reveal).

Best: why_seen; the name cards; week_cards. Weakest: the order cards; strip_named on a phone; the half-disc alt text.

Skill: course-build → review-lesson (Role A blind key read, two readers; Role C adjudication by the coordinator) @ fb37d14

Topic 32 — The Moon's changing shape — blind read, 2 October 2026

One wrong key, caught by both readers and fixed: PP-26 asked which NAMED shape follows a half Moon lit on the left; the key said "a new Moon", but a crescent comes first. Key moved to the crescent; the why rewritten. Otherwise 129 rows each, MCQ disagreements 0 beyond PP-26; all seven order keys matched both readers letter for letter (first night → last, counting on from the stem's start); PP-41 multi C, D matched; typed answers on list. No key credits Earth's shadow. No child names appear in the items.

Flags carried into the fix pass

Readers' files: blind/2026-10-02/READER_A.md, READER_B.md.

Skill: review-lesson @ e23b67f — Role A, Reader C (cold, bundle only), Grade 4 Topic 32 v2 "The Moon's changing shape"

Takeaway

Almost every item has exactly one honest answer, and the v1 faults look fixed: every new-Moon stem now says "none of the Moon's lit part faces us" or "its lit half faces away", no key credits Earth's shadow, the drawing descriptions name the lit side and its straight edge without the word "half", and "more than half lit" sits as a distractor in L03-07 and as a paired option in PP-27. Three things still need a hand. PP-48 reads as a wrong key: option B ("a half Moon lit on the right comes back about two weeks later") is false — two weeks on it is a half Moon lit on the LEFT — while D is the true sentence. PP-20's key is the only option not written as "a … Moon", so a test-wise child picks it by shape. PP-45 has two reachable answers (a week after a thin left crescent is a right crescent, but a child who rounds "nearly new + a week = half" picks A). L04-03 and L04-V-01 are the same stem, so the quiz hands over the video gate.

Items

Adversarial answers (typed items)

Cross-item notes

• New-Moon items (L02-02, L05-05, PR-13, PP-09, PP-38) each carry their datum; PP-21 asks where the Moon is and C is the only option that keeps it on its path.
• Earth's shadow appears only as a distractor (L05-06/07/08, SUMMARY-03, PR-12, PP-18, PP-39, PP-41, PP-49, PP-51). Good.
• Drawing descriptions never say "half"; "straight edge" matches the half-Moon definition items but is the drawing itself, not a student-facing hint.
• "because" items (L05-11, PP-51) use it in every option; sentence-shaped option sets are uniform throughout.
• Length tells: the longest option is wrong wherever lengths differ (PP-18, PP-49). Clean.
• Order items: all seven run first → last from the stem's named start; answers above are lists.
• Duplicate: L04-03 = L04-V-01 (same stem; the V item is the XP gate). L04-01 / PP-02 / L01-03 repeat the month fact as fluency — fine.
• PP-05 / L01-06 share the odd-option-is-key shape; one of them could add a second "ball" distractor (e.g. "the Moon's colour").

Would not ship as is: PP-48, PP-20, PP-45, L04-03.