act one

  • 1. Guess how many levels he'll make with all those toothpicks.
  • 2. Write down an answer you know is too high. Too low.

act two

  • 3. What information would be useful to know here?
  • 4. What information doesn't matter?

act three


  • 5. We used a pack of 250 toothpicks and made 12 levels. If we used another 250 toothpicks, how many levels would that make?
  • 6. Write a function t(l) that takes the number of levels (l) and returns the total number of toothpicks (t) in that pyramid.