Complete Coverer and Counter

Draws a complete covering of a specific region without gaps or overlaps and in approximations of rows. When provided with more than the total number of physical tiles needed, can build a region of specified area (e.g., build a rectangle with an area of 12 from a pile of 20 tiles).


You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • Draws a complete covering, but with some errors of alignment. Counts around the border, then unsystematically in the interiors, counting some twice and skipping others.

Help your student become a(n) Complete Coverer and Counter

Activities challenge children to completely fill a region, often by providing scaffolding (a partial grid) to "get them started" on using rows and columns and gradually fading that support.

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.