A two-way transfer plan

Make two parts, move two or three members between them, and update both values. An ordinary starting amount is 24; smaller useful amounts are welcome. Use safe existing pieces, paper marks, tactile materials or direct the moves. Keep or revise your plan with a reason.

Empty own organiser · Complete description.

Grown-up help

Look for the stated direction, matching departures/arrivals and unchanged whole. A supplied example is 14 + 10 = 24; choose it as teaching support after an own attempt when useful. If only one label changes, enact departure and arrival with one object in a new small collection. If the whole increases, make sure the old place is emptied when the object arrives elsewhere. Full plan. Count supplied versus actual materials separately; child-directed adult acts show mathematical choice without proving motor performance. No viewer, returned homework or fixed quota is required.

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