Shape Property Identifier
Sub Trajectory: classifying

Uses properties explicitly. Can see the invariants in the changes of state or shape but maintaining the shape properties.

Activities

You may see this:

Linked Image to Sign In/Sign Up page

Other Examples:

  • Child says, "I put the shapes with opposite sides parallel over here and the shapes with four sides but not opposite parallel sides over there."

Help your student become a(n) Shape Property Identifier

Activities ask children to classify shapes based on their properties; for example, can sort, placing all shapes that have at least one right angle together.

Practice-based Research:  Alternating ways of making Don't Burn Your Feet shapes (tape, chalk, cut, or enlarged) on different days helps children generalize their shape knowledge by seeing different representations of the same geometric ideas.

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.