Congruence Superposer

Sub Trajectory: comparing

Moves and places objects on top of each other to determine congruence with knowledge that this has matched all the shapes' attributes. May also determine congruence by comparing all attributes and all spatial relationships, such as comparing every one of their sides and angles.

Activities

You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • Says that two shapes are the same shape and the same size because they can be laid on top of each other.
  • Says that two shapes are the same shape and the same size after comparing every one of their sides and angles.

Help your student become a(n) Congruence Superposer

Activities require children to determine congruence by superposition, that is, laying shapes on top of one another to "match exactly."

Shape Stacker [Superposer]
Shape Stacker [Superposer]

Small Group

Feely Box [Congruence Superposer]
Feely Box [Congruence Superposer]

Whole Group

Find My Match [Congruence Superposer] (STEMIE)
Find My Match [Congruence Superposer] (STEMIE)

Small Group

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.
Bill & Melinda Gates foundation
Heising Simons foundation