Students will be able to
- determine the difference between permutations and combinations, that is, that order is disregarded for a combination,
- recall that ,
- evaluate simple expressions involving combinations,
- use combinations to solve counting problems (e.g., How many teams of 4 can be selected from a group of 20?),
- find the value of an unknown in equations involving combinations, for example, or ,
- link the fundamental counting principle and combinations.
Students should already be familiar with
- the fundamental counting principle,
Students will not cover
- more difficult counting problems (e.g., In how many ways can you place 3 red cards and 2 black cards such that there are always at least 2 consecutive red cards?).