Pattern Play wooden design blocks by Mindware Ages 3+ Excellent pre-owned condition - but missing most of the cards! This comes with the wooden tray, all blocks, box, and 5 out of 40 cards. Use these brightly-colored blocks in varying shapes and the pattern cards to introduce significant math concepts like sorting, matching, symmetry, congruence and fractions.The blocks can also be used to create endless freeform designs, providing hours of engaging creative play. • Develops early math concepts, spatial skills, strategy and fine motor skills • 40 glossy pattern cards and 40 durable wooden blocks guaranteed to last • Sturdy wooden tray is great for storage & travel • Even clean-up is learning opportunity