Curriculum

Use mt_4Km38F4L-6 to check fraction-as-division and mt_AabJisinfi to check multiplication back. Ask the learner to distinguish one quarter of a whole from one quarter of an already small piece. Canonical ages are 10–11, not a readiness guarantee. These activity checks are inferred; source availability is not mastery.

Check learner readiness directly; prerequisite availability is not attainment.

Use the supplied screen sheets or print only the active sheet. A pencil and scrap paper are enough; no printer, purchase, cutting, cooking, food handling or personal disclosure is required. Read Show first, then use Together with support. Put Show and adult keys aside before Try. Stories are fictional; no activity is evidence until the learner actually attempts it. Allow drawing, pointing, oral explanation or adult scribing; record the support actually used. Scribed mathematics is not independent handwriting. Pause or return to a prerequisite when needed, without treating uncertainty as failure.

Keep the original whole fixed. Splitting one b-th into n equal shares makes each share one of b × n equal parts of the whole. So dividing 1/b by n gives 1/(b × n). This lesson uses positive whole-number divisors; never divide by zero. When n is greater than one the result is smaller than the starting unit fraction.

Read the Show model aloud while tracing the relevant unit. In Together, invite an attempt before giving the private hint. Ask the learner to explain why the operation fits. For Try, remove worked material and let the learner choose a representation. Discuss mistakes after recording the attempt, then retry another day if useful.

Supplied fixed-unit models make partition size, equal sharing or square-area units visible. Learner diagrams are blank scaffolds or stated givens, not worked answers. Screen or paper drawing serves the purpose; no digital interactive is needed.