Recognizing color, shape and size, and sorting objects into groups are the building blocks of beginner math skills. What better way to explore these important concepts than with boldly colored wooden blocks and frame? Extension activities are included for exploring form, fun and function, all in one toy! Melissa & Doug was started 20 years ago, by a real Melissa and Doug, in the garage of Doug's childhood home, where occupational priorities included not disturbing Doug's parents. The company has grown and moved, but its founders' philosophy remains unchanged: to make each and every customer a happy and permanent member of the Melissa & Doug family.