Same Shape Stacker

Shows use of relationship of “on” to stack congruent blocks, or those that show a similarly helpful relationship to make stacks or lines.


You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • A child stacks similar blocks directly on top of each other. 
  • A child finds blocks of the same size and makes stacks, with blocks facing horizontally or vertically. 

Help your student become a(n) Same Shape Stacker

Children naturally like to stack things on top of each other, especially when adults notice them doing so or model doing it themselves. Here adults may comment on children making a tower of identical blocks, naming them and noticing how high it is. Discussing that the blocks are "all the same shape" provides more foundations for the later-developing concept of congruence.

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.