The Lesson

This lesson uses a Two-Stamp Problem to illustrate the Principle of Mathematical Induction. We:

1. define what is meant by a predicate
2. emphasize the difference between "some value of n" and "all values of n"
3. explain the importance of both the base case and the induction step for a successful mathematical induction argument
4. illustrate what can go wrong if you skip either the base case or the induction step

Click on this Two-Stamp Problem Video Lesson (25:05) and then complete the worksheet below to help reinforce the concepts in this lesson.

Practice Worksheet