Shape Detectives: Preschool Shape-Recognition Mathematics Guide (Ages 3–5)

This teacher’s mathematics guide provides a preschool sequence for recognizing and comparing circles, squares, triangles, and rectangles. Children practice noticing edges and corners, finding shapes in classroom objects and pictures, and searching, matching, sorting, and explaining what they observe. Use the guide to plan hands-on shape exploration and record observations during play, adapting activities to children’s access needs and readiness. Introduce shapes with safe, large materials and start with three shapes if four feels demanding.