YouTube videos by Cambridge mathematician Tadashi Tokieda: "Math Encounters - Toy Models: Extracting Mathematical Surprises from Everyday Life," "Mathematics with Paper Clips, Ribbon, Rubber Bands (Math-Byte)" and "Toy Models".

YouTube videos by Cambridge mathematician Tadashi Tokieda: "Math Encounters - Toy Models: Extracting Mathematical Surprises from Everyday Life", "Mathematics with Paper Clips, Ribbon, Rubber Bands (Math-Byte)" and "Toy Models" Since then, several folks have directed me to a number of videos by Tokieda analyzing other interesting "simple" phenomena, including his "Toy Models" talk. A nice hands-on activity with a paper strip, paper clips, and rubber bands ends the Princeton video, and is then explored at greater length in the second I Mathbytes i video. [Extracted from the article]