- Introduce the fundamental counting principle (FCP) and show students how to use this concept.
- Introduce n-factorial and how to solve for it.
- Explain permutation and combination, and use of formulas.
Tips and Tools
Use Curriki lesson on the fundamental counting principle.
video by the Khan Academy compares permutations and combinations (10 minutes).
Regard this day as a first milestone for checking on understanding of probability. If students are unclear or ‘stuck,’ take time to discuss or intervene.
Focus on Mathematical Practice 4, Model with Mathematics. Can students recognize that common problems involving chance and probability can be captured in mathematical language or formulas? Have them enter their reflections in their .