The document discusses permutations and provides examples of permutation problems. It defines a permutation as an arrangement or listing of objects where order is important. It provides examples of finding the number of permutations when selecting people or objects. It asks the reader to determine whether different scenarios involve permutations and provides keywords to identify when a problem is or isn't a permutation problem.

1. 9-4 Permutations p 381 Find the number of permutations of a set of objects

2. Work the hands on mini lab on page 381 with a partner

5. Example from mini lab

11. A school fair holds a raffle with 1 st , 2 nd , and 3 rd prizes. Seven people enter the raffle. How many ways can the three prizes be awarded?

12. In how many ways can you arrange four books on a shelf.

13. In how many ways can you award 1 st and 2 nd prize form a group of 6?

14. In how many ways can 7 people line up at a ticket window?

15. In how many ways can you arrange the letters in the word eighty?

16. In how many ways can you choose a leading man and an understudy from 11 actors?

19. What are some key words that help you know it is a permutation?

20. What are some key words that show it is not a permutation?

24. p 382: 3-19, 21, 22, 23