Ask students to choose their own teams, each with a maximum of three kids. Cut a rectangle about four-inches by six-inches from a piece of corrugated card- board. (This chassis needs to be small enough to fit on the ramp.) Cut two sections of straw as long as the chassis is wide. Tape or glue them to the bottom carefully, mak- ing sure they’re parallel to each other. Start by aligning the chassis with a square or the edge of the worktable. Eyeball the perpendicular direction by looking at the per- pendicular edge of the table or square. Glue the first straw in place
