Winding Mechanisms with Cotton Reels

The introduction is about Forces and how winding up can provide the power for some non- motorised toys. The students then individually choose a shape, a butterfly, a car, a bat etc., colour in and cut out the shape. Their shape is then folded and mounted on a rubber band/cotton reel mechanism I bring with me. The students drag their model backwards which winds up the rubber band, before releasing it. The students keep what they have made.