Outline:

1. Mini-quiz
2. A bit more about functions
   • Exercise 1
   • Variable scope
   • Returning multiple values
   • Exercise 2
   • Modifying parameters
   • Exercise 3
3. Making choices
   • The if keyword
   • Exercises 4+5
   • Two-way decisions: if/else
   • Exercise 6

Reading assignment (to be completed by the next class):

• Zelle sections 6.6-6.8 (pp. 193-203)
• Zelle sections 7.1-7.2 (pp. 209-220)