Children will use these familiar blocks to create new shapes from existing shapes. They'll learn about sides and corners of rectangles, triangles, trapezoids, and much more. This boxed set includes 100 plastic Pattern Blocks, and eight colorful two-sided activity cards, each 8" x 8" (20.5 x 20.5cm). Just right for learning centers. Grade Levels(s): Kindergarten - Third Grade Pieces: 100