As they roll balls down ramps and around curves, toddlers learn about the principle of cause-and-effect. This STEM learning set creates hours of fun while little ones develop their motor skills and hand-eye coordination. Each run has a slightly different design, so young learners can see the differences between each path as they explore. Made from durable wood, both the balls and the ball run will stand up well under many years of use. This set teaches concepts of gravity, acceleration, speed, and momentum, all through active play. Because play is open-ended, toddlers are enticed to keep interacting with, and learning from, the materials. This set works well in a STEM area of the classroom where hands-on learning is encouraged.