Techtivities Techtivities developed in collaboration with Dan Meyer , Dan Wekselgreene, and the team at Desmos. LANDING PAGE FOR THE TECHTIVITIES. HELP STUDENTS SEE #HOWGRAPHSWORK Cannon Man Toy Car Ferris Wheel: Distance v. Height Ferris Wheel: Distance v. Width Ferris Wheel: Height v. Width Dynamic Tent Changing Kite 3-D Printer