Objectives:

1. Recap: class diagrams
   • Class diagrams for analysing problems
   • Class diagrams for designing programs
2. Understand overriding
   • Sub-classes have different behaviour
3. Understand polymorphism
   • Programs that work for data of many types
4. Consolidate understanding of inheritance and overriding using an extended example

Theory:

• PowerPoint Book

Programming:

• Worksheets
• Person.py
• Starter Program: Exercises 1 – 3
  • Exercise 4: Modules-20Q.py
  • Exercise 4: Modules- Animals.py
  • Exercise 4: Knowledge.py
  • Exercise 4: Mammal.py
  • Exercise 4: MarineMammal.py

Solutions:

• Week 4:
  • Week 4 – Class activity-Teaching Group
  • Week 4- Class activity- Main Program
  • Week 4 – Extension- Quiz
• Week 5:
  • Week5 Class Activity – Answers
  • Exercise 2- Answer.py

Exam Questions:

• Exam Questions