Series: Focus on the Child

Changing Quantity with Child 13

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A student computes how many objects are in a collection that is hidden from view.

Focus on the Child videos are taken from one-on-one interviews with individual children. The interviews are designed to elicit evidence of children’s mathematical thinking. They are not teaching episodes or formal assessments.

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Big Idea

A quantity (whole) can be decomposed into equal or unequal parts; the parts can be composed to form the whole. More

Key icon for Big Ideas

Big Idea

Sets can be changed by adding items (joining) or by taking some away (separating). More

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Common Core Alignment

Number and Operations: Fractions More

Foundational Math Concepts

Source: 10-11 Pre-K Training Video • Copyright: © Erikson Institute • Content ID: EMTR058 ①

More in the Focus on the Child series

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