Here are three cats: 1. Red cat 2. Green cat 3. Blue cat Why don't you: a) Run the program by clicking the green flag. b) Compare the programs for each of these cats c) Ask yourself these questions: * Which program is easier to read? * Which program is easier to maintain (=make changes to)? d) Try changing what Blue Cat does: * Can you make Blue Cat draw a triangle instead of square? * Can you make Blue Cat draw a triangle AND a square?