Straw Structure Small Group 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... $69.50 Monster Mouth Small Group 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... $59.50 Mazes Small Group 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... $69.50 Linkages Small Group Pack K-8th Learners connect cardboard levers and pivots into moving mechanisms, then hide them inside creatures and characters, like animals that dance a... $69.50 Flying Machine Small Group Pack 1st-8th Learners build a rubber-band-powered flyer, draw and cut their own symmetrical wings, and launch it again and again to see how each design fli... $59.50 Screen Machines Small Group Pack 1st-8th Learners build a cardboard screen with wooden scroll handles, write and illustrate a story on a paper strip, and crank it to play like a tiny ... $59.50 Scene Machines Small Group Pack 2nd-8th Learners build an automaton, a hand-cranked machine where turning a handle brings a scene to life. They invent the characters, art, and story,... $59.50 Drawbot Small Group Pack 2nd-8th Learners build a small foam machine with marker legs that vibrates across paper and makes its own art. Then they rearrange the parts to change... $69.50