Teachables Giant Magnetic Pattern Blocks - Colourful Shapes, SetReinforce shape recognition, symmetry, patterning, similarity, congruency, fractions as well as area and more with this set of 52 Magnetic Giant Pattern Blocks. These blocks are 9 times greater in total area than standard pattern blocks, providing a larger, more tactile learning experience. The pieces are based on metric measurements, with the square block measuring 9 x 9 cm. Made from a plastic laminate with magnetic backing, the blocks are somewhat