The Block Play STEM Kit develops skills in gravity and force, structure, stability, balance, size, shapes counting and trajectory. This easy to use kit will help encourage children’s problem solving skills naturally as they play explore. Simply set out the materials and display one of the illustrated activity cards and then let children start discovering on their own. The back of each activity card has teacher tips and discussion questions to help guide children along. Set includes 46 wooden pieces, 20 plastic links, 8 activity cards and a card stand. Ramp measures 20.32 cm.