2D Shapes

Shape Class Identifier

Sub Trajectory: classifying

Uses class membership (e.g. to sort), not explicitly based on properties.

Activities

You may see this:

Other Examples:

Child explains, "I put the triangles over here, and the quadrilaterals, including squares, rectangles, rhombuses, and trapezoids, over there."

Help your student become a(n) Shape Class Identifier

Activities ask children to classify or name shapes based on their class; for example, can sort shapes into triangles and quadrilaterals (4-sided shapes) regardless of their common names or classifications (rectangles or squares).

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.