Put your critical thinking to the test and fire up the strategic problem solving. Stack, pattern and match the multicolor shapes. Don't be fooled by appearances, these endlessly enjoyable blocks mean brain-boosting business. Mental Blox help children practice following verbal instructions, asking questions and build critical thinking skills. Activity cards provide children with examples of what to build. Children can recreate what is on the card or can give verbal instructions to a partner or group. Pieces feature four different shapes and 3 different attributes for a real challenge. Includes 20 chunky plastic blocks, 20 activity cards, and activity guide. Blocks measure 2" x 2" . Age 5+/Grades K+.