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Transforming Three-Dimensional Shapes with Child 36


This child flips and rotates triangular prism-shaped blocks to match a given arrangement.

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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Why is this important?

Simple transformations of 3-dimensional shapes through flipping and rotating help children construct the idea that a shape does not change even as they change its position.

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