Toothpick and Marshmallow Bridge

Day 1 - Exploration

  • Free build of bridge over a fixed gap (6″)
  • Gallery walk
  • Group discussion/share of ideas
  • Refine/modify
  • Class discussion
    • Similarities
    • differences
    • What did you notice about other group’s bridges?
    • Strength predictions
  • Can you represent your bridge with and expression?
  • Graph class data

 

Day 2 - Finding Structure

  • Build a bridge to span 8″
    • Did you change from your original design?
      • (Discussion) What did you change and why?
    • Represent your bridge with an expression
      • (Discussion) What is the same/different with your expression?
  • Add class data to graph