Learning Outcome

At the end of this lesson, you will be able to:

• use local and global variables in a program
• find errors in a program and be able to classify the kind of error

Movie Watching

• watch "Play Value, Tetris: Splitting the Iron Curtain"

Review

• review 6 steps to solving a computer problem

Lesson

• go over "Scope of Variables", Chapter 3
  • Computer Based Problem Solving
• review stepping through a program
• go over types of errors
  • syntax error
  • logical error
  • run-time error

Activity

• go over Global variables in Python
  • usually, just not a good idea
  • https://stereochro.me/ideas/global-in-python

Daily Assignment

• re-create this program:

Extra

• create the above program in a second language

Code Links

• Global Variables

Homework!

• review Chapter 3
  • Computer Based Problem Solving