Learning Objectives

Through readings, lecture and labs, it is expected that you are doing work and seeking help to keep pace with the below objectives:

Conditionals (if statements)

You should be comfortable with:

• Tracing the execution of programs using if, elif, else
• Computing the values of Boolean expressions (expressions that evaluate to True or False).
• Writing programs that use these constructs.

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Required Reading

• Miller and Ranum, Week 3 Reading
• Reference: CS115 Graphics Tutorial

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Supplemental Materials

We all need alternative presentations of the concepts from time to time. The following resources are optional. If something seems unclear after class, or the pratice questions seem hard for you, then explore these topics more using the resources below.

Conditionals (if statements)

• CS Circles lesson on if-statements
• CS Circles lesson on else, and, or, not
• Zelle, Sections 7.1–7.3
• Zelle, Sections 7.5

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Practice

For all these exercises, I recommend you try them on paper and then test them out with PythonTutor.