Perfect for whole-class demonstrations & hands-on learning, our Giant Magnetic Geometric Shapes make math concepts easy to see…and easy to understand! The big, dense foam pieces are a cinch to grab & manipulate, and they stick to any magnetic surface—providing concrete practice with everything from composing shapes to partitioning shapes into quarters, halves and more! Plus, each geometric shape is clearly labeled with its name. 81 pieces; largest rectangle is 8". Magnetic board sold separately. Develops skills in 2-D shapes, 3-D shapes, recognizing shapes, naming shapes, comparing shapes, composing shapes and partitioning shapes.