# Move one, keep the same amount

Take 18 safe pieces or make 18 marks, or choose a smaller manageable amount. Use two or three spots to organise a job you actually want to do. Show each part; change the split while keeping the same collection. Point, say, sign or direct the moves. No return/photo is needed.

Try one small check: how do the parts account for your whole? If an empty spot is useful, it has zero. You may stop or finish privately.

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An ordinary example is 8 + 10 = 18. Show its reasoning only after the first own attempt if useful. This is a supplied model, not your household's stock. [Full plan](../teacher/day-46.md). 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. An adult can move under the child's direction; record a maths hint separately from reading or physical access. Home return is optional and is not a learning criterion.

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