Folded Paper Holds Weight
Folded paper supports much more weight.
Teaching & key ideas
What you do: Compare flat paper bridge with folded/accordion paper.
What students see: Folded paper supports much more weight.
Why it works: Folding changes shape and increases stiffness.
Question to ask: Did we add more paper or just change its shape?
Lesson flow
Predict → demonstrate → observe → briefly explain → ask: Did we add more paper or just change its shape?