Stage 32 · Counting, Permutations, Combinations & the Binomial Theorem
32.1.6 Putting Both Principles Together
32.1 The Two Counting Principles: Where All Counting Begins
Point 6 of 6
32.1.6 Putting Both Principles Together
Core ideaLicense plates, passwords, route problems: first split into broad cases, then go step by step inside each case, nesting cases and steps together
Module goal. Build the two basic habits of mind — add when you sort into kinds, multiply when you go step by step — and learn to tell whether a task is a 'sort' or a 'sequence', laying the foundation for permutations and combinations