These simple shapes unlock a complex world of STEM through fun challenges! When they take the STEM Explorers GeoShape Challenge, kids solve STEM puzzles one shape at a time! This set includes 50 colourful shapes—10 different three-dimensional shapes in 5 unique colours—and 20 challenges that teach geometry, spatial reasoning, and engineering through hands-on play. Great for classrooms and light table play! Size: 25.4 x 25.4 x 5.1 cm.