Straw Structure Class Pack Pre-K-8th Learners connect jumbo paper straws into shapes, then into towering 3D structures as tall as they are, then team up to reach the ceiling. It t... $122.00 Mazes Class Pack K-8th Learners design a ramp path so a ball zigs, zags, and zooms into a hoop, then connect their maze to a partner's to build one long run. It is a... $122.00 Monster Mouth Class Pack K-5th Learners design their own monster and give it a pneumatic, air-powered mouth that opens and closes as they push and pull. Character design, st... $105.00 Blendie Class Pack Pre-K-8th Learners build a spinning top, test which designs spin best, then color it so red, yellow, and blue blur into brand-new colors as it spins. Ev... $122.00 Linkages Class Pack K-8th Learners connect cardboard levers and pivots into moving mechanisms, then hide them inside creatures and characters, like animals that dance a... $122.00 Crankie Contraption Class Pack 1st-8th Learners build a hand-turned cardboard theater and illustrate a story that scrolls across its screen like a movie. Crankies come from a long t... $122.00