Outline:

1. Quiz #1
2. graphics.py: code and documentation
3. A taste of object-oriented programming
   • plotting earthquakes: code and background image

Explore after class:

3. A taste of object-oriented programming with graphics.py
   • more practice

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

• Zelle sections 4.1-4.3 (pp. 83-90)