Area Unit Relater and Repeater

Counts individual units, often trying to use the structure of rows. To cover a region with physical units, repeats (iterates) an individual unit. Draws a complete covering based on an intuitive notion of rows and columns, making equal sized units, but often draws them one at a time. That is, draws individual, mainly equal-sized units that are lined up but may not see groups of units making up individual rows or columns. Relates the size and number of units to cover a region, recognizing that differently sized units will result in different measures and that the larger the unit, the fewer will be needed. Compares areas by accurately counting units in each and comparing the resulting measures.


You may see this:

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Other Examples:

  • Counts correctly, aided by counting one row at a time and, often, by perceptual labeling.
  • For example, asked to compare shapes, states that they take up the same amount of space "because they both have 4."

Help your student become a(n) Area Unit Relater and Repeater

Activities challenge children on two fronts. First, they learn to use a single unit of area (e.g., a square tile) to figure out how many will be in a row and how many rows. Second, they are asked to estimate or figure out how many of a larger (or smaller) unit will fill the same area as a unit they already measured with.

Rug Tiles
Rug Tiles
Floor Tiles
Floor Tiles

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.