What's inside

A one-class paper-ball ramp lab for grades 4–5. Two levels, claim and evidence, a partner game, and slides. No kit. Students roll the same paper ball down a folder ramp at 5 cm, 10 cm, and 15 cm and measure from the ramp end to the stopping point. Materials are already in the room: paper, books, a folder, a centimeter ruler, and paper towels. No cars, marbles, batteries, or kit! What’s included (one 14-slide presentation PDF)Prep slide: paper, books, folder, centimeter ruler, paper towels. Fair-