Each group needs:

• Android device, smart phone or tablet (1 per class or 1 per group, depending on availability)
• Android Acceleration Application, the packaged data collecting app for Android
• textbook track (use a full classroom set of ~30 books to create a 15-20 feet long track, with ~15 books on each side of the track.)
• large rubber bands, ~15 (strung together, the rubber bands should span the length of the track)
• computers with Excel, Geogebra or similar software