Which strategy would likely be most effective in fostering a preschooler's emerging understanding of addition and subtraction?

Which strategy would likely be most effective in fostering a preschooler's emerging understanding of addition and subtraction?

• A. having children measure the size of various objects in the classroom using their hands or feet
• B. providing children with opportunities to hand out materials to each classmate during snack time
• C. giving children blocks to sort by various attributes
• D. engaging children in finger plays about five of the same type of animal (e.g., ducks, monkeys, bunnies) that appear and disappear

Answer: (D)

Engaging children in activities that visibly change a quantity helps them grasp addition and subtraction in a concrete way. Finger plays about five of the same animal that appear and disappear gives a clear, kinesthetic experience of numbers changing as items are added or removed. Children count the animals as they appear, then count again as they disappear, connecting actions with number words and building one-to-one correspondence between objects and counts. This supports early number sense, counting fluency, and the language of more and less, laying a foundation for addition and subtraction. The other strategies don’t target changing quantities in the same way. Measuring with hands or feet focuses on size comparison rather than combining or taking away numbers. Handing out materials at snack emphasizes sharing and classroom routines, not math operations. Sorting by attributes develops classification and patterning, not addition/subtraction concepts.

Engaging children in activities that visibly change a quantity helps them grasp addition and subtraction in a concrete way. Finger plays about five of the same animal that appear and disappear gives a clear, kinesthetic experience of numbers changing as items are added or removed. Children count the animals as they appear, then count again as they disappear, connecting actions with number words and building one-to-one correspondence between objects and counts. This supports early number sense, counting fluency, and the language of more and less, laying a foundation for addition and subtraction.

The other strategies don’t target changing quantities in the same way. Measuring with hands or feet focuses on size comparison rather than combining or taking away numbers. Handing out materials at snack emphasizes sharing and classroom routines, not math operations. Sorting by attributes develops classification and patterning, not addition/subtraction concepts.