ThinkFun Shape Logic Board Game for Kids Age 8 and Up - Fun Gameplay Develops STEM Skills WHAT YOU GET - Includes 20 pieces and 50 challenge cards, WHAT YOU GET learning game for grades 2-8. CLEAR INSTRUCTIONS  Easy to learn with a clear, high quality instruction manual. You can start playing immediately! DEVELOPS CRITICAL SKILLS - Fun gameplay develops mathematical reasoning skills essential for a modern STEM education. COMES WITH MULTI-LEVEL CHALLENGES - Shape Logic comes with 50 beginner to expert challenges that become increasingly difficult as you play through them. AWARD WINNER - National Parenting Center's Seal of Approval, Learning Magazine Teachers' Choice for the Classroom Award.