Simple Decomposer

Decomposes (“takes apart” into smaller shapes) simple shapes that have obvious clues as to their decomposition.


You may see this:

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Other Examples:

  • Given a hexagon, and asked to decompose, a child breaks the hexagon into two trapezoids.
  • Given a hexagon, and asked to decompose to make a new shape, a child breaks the hexagon into six triangles and makes a new shape with them as suggested with a puzzle.

Help your student become a(n) Simple Decomposer

These activities provide substantial perceptual support, using simple shapes and examples of the parts into which those shapes might be decomposed (by children who might draw a line or cut the shape into parts). 

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.