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 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 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 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 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 Electric Vehicle Small Group Pack 3rd-8th Learners wire a motor and gear into a working electric car and watch it drive. Swapping two wires reverses the polarity and sends it backward.... $69.50