Shape Decomposer with Units of Units

Decomposes shapes flexibly using independently generated imagery and planned decompositions of shapes that themselves are decompositions.


You may see this:

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Other Examples:

  • Given only squares, can break them apart - and then break the resulting shapes apart again - to make decompositions of decompositions.

Help your student become a(n) Shape Decomposer with Units of Units

These activities ask children to mentally decompose shapes into smaller shapes and then…do it again, creating units of units. Discuss their strategies.

Special Thanks To

Institute of Education Sciences
The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through grant numbers R305K050157, R305A120813, R305A110188, and R305A150243. to the University of Denver. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.