A teen picture kit
Show a teen first as ten-and-ones, then as another unequal or equal two-part account. An ordinary starting amount is 13; 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 valid alternative teen parts, not only a copied standard account. A supplied example is 4 + 9 = 13; choose it as teaching support after an own attempt when useful. If ten-and-ones is the only accepted split, physically move two objects between parts of a different teen. Check each part and recombine. If equal sharing is imposed, choose two jobs with different needs. 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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