Experiment with structures, stability, and construction techniques on a desk or table in the classroom using these small foam blocks. Working together in a small group of 4, students build a wall, pyramid, or arch. They will discuss which structure has the best stability, while also collaborating on methods on how to make them even stronger. Lightweight blocks are made of soft, uncoated, dense foam that’s pick-proof and will not disrupt others when structures fall. Teachers can also incorporate the blocks into other building lessons in the classroom. Set includes 18 foam building blocks (5"L x 3"W x 3"H), 8 arch blocks (5"L x 3"W x 1-3/4"H), 1 keystone (6"L x 4"W x 1-1/2"H), and lesson direction that is adaptable for grades K-4 and 5-8. Recommended for Elementary and up.