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Day 37 · A turn, a month and a yearYear 2 Science · T1 W7–8 · Teacher · Teacher / Day 37
Child start: “Choose the time story. A turn? A longer Moon record? A trip around the Sun?”
Useful finish: A three-question time menu. Prerequisite: Day 13 turning; Day 32 about-month appearance; Day 35reference. Prepare: Paper Earth mark +fixed guide, separate orbit route outline and four caption cards; no model distance/ speed measurement. Opportunities: U01/H01/I04/I06.
Complete model: Card D describes one day/night turn of the same Earth place; M is the original about-month lit-appearance archive from Day 32; Y says Earth completes a trip around the Sun in about a year; a separate miniature paper orbit is only a model. A ten-session attendance list is not evidence that a Moon phase cycle or Earth orbit has been observed. About a month is not always an exact calendar month. Do not teach the simplified “every fourth year” leap rule or 23.9-hour sidereal figure here. Year and day are different motions; seasons are not explained by Earth being nearest the Sun.
Run:2 min choose one interesting time question;3 min contrast the two Earth motions using separate paper operations;7 min route;3 min choose which records would answer it. Extension label what would require a longer plan outside this bank rather than pretend to have completed it.
Route1 — Direct two separate model jobs: First turn the marked disk, then separately move an Earth token around the Sun route; child narrates the different purpose/time meaning. Route2 — Fix a calendar exhibit: A draft says “ten lessons make one whole Moon cycle”; replace it with the archive's actual scope and a longer collection plan. Route3 — Make an audience menu: Give a visitor three question cards and let them select an appropriate record/time span. Don't require memorised numerical durations.
Notice/next: Motion/time/question matched, model not observation. If turn/orbit collapse, teach one token action at a time. If calendar month treated as exact phase cycle, compare named calendar dates with an approximate cycle statement, without making a forecast. A-later after this teaching. Home H07; C13–14; X07.
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Ordinary example C13 · Another example C14 · Home H07 · Project X07 · Read-aloud · Paper and picture aids · Sky Desk
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