Unit 3 · Counting

Chapter 3.6

Too Few Boxes

Some facts are forced simply because there are more things than places to put them.

free · lesson 18 of 42

Ask about thisOpen in workspace

By the end

  1. 01Use the pigeonhole principle to force a repeat
  2. 02Bound a maximum by grouping items so each group can hold at most one

In unit 3

  1. 3.1Multiply or Add?
  2. 3.2Count What You Don't Want
  3. 3.3Arrangements and Overcounting
  4. 3.4Choosing, Pascal, and Stars and Bars
  5. 3.5Counting Two Ways
  6. 3.6Too Few Boxes
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