Instructions:

BEFORE this session, for each of the following videos or reading:

• Watch the video (or read the reading), and as you do so,
• for the first two items below: do the associated quiz in Moodle;
• for the remaining items below: follow this link to the Quiz for Session 8.
  • You can print the quiz and write your answers on paper (that is probably simplest) or you can write your answers in a separate document — your choice.
  • Again, note that there are quizzes in Moodle AND the paper-and-pencil quiz linked above.

Videos and Reading:

1. Range expressions
   • Read this document on Python's RANGE expression. It extends the 1-argument form that you know to the 2 and 3-argument forms.
2. Box-and-Pointer Diagrams
   • Video [9:22 minutes]
   • Optional reading: This handout on Box-and-Pointer diagrams covers the same material as the video, plus a little more.
3. What is a CLASS -- the concept
   • Watch this Video [7:44 minutes]. It reviews the concepts of a object and class.
4. What is a CLASS -- the notation
   • Watch this Video [6:56 minutes]. This video reviews the notation of a class, as well as the concepts. It is important preparation for the next video.
5. What is a CLASS -- the implementation
   • Watch this Video [11:43 minutes].
     • This is the new stuff (but the previous videos are super-important preparation without which this video will make no sense).
     • It shows all the basics of how to implement a class, using a Point class as an example.
     • In your in-class on-the-computer exercises, you will do an extended example that starts where this video leaves off.