The amazing award winning MightyMind puzzle set makes kids smarter that parents and teachers can actually see happening! The unique puzzles are based off of Harvard Behaviorist B.F. Skinner and have been teaching children spacial awareness, basic math, reading and STEM for over 42 years in 26 countries around the globe. MightyMind Super Challenger features metal trays that have puzzle shapes that can be completed with the colorful plastic magnetic proportional pieces. Children will learn and understand a basic scope of logical thinking and linear puzzles that will program them to build a solid foundation that will make their future, more difficult studies easier. This puzzle set will turn play time into fun time without your children knowing it! The numbered trays gain difficulty at the higher numbers and will build their self-esteem and confidence as they finished each set! This will be a grand bonding time for you and your child.