Unit 3: Functions

Lessons

1. 1 What Are FunctionsWhat functions are, why functions are useful, when to use functions, built-in functions 15–20 min
2. 2 Defining and Calling FunctionsHow to define functions, function syntax, how to call functions, function naming 15–20 min
3. 3 Parameters and ArgumentsWhat parameters are, what arguments are, the difference, multiple parameters 20–25 min
4. 4 Return StatementsWhat return does, using return values, return vs print, functions without return 20–25 min
5. 5 Variable Scope & LifetimeLocal vs global variables, variable scope, variable lifetime, best practices 20–25 min
6. 6 Default & Optional ParametersDefault parameter values, optional parameters, calling with defaults, best practices 15–20 min
7. 7 Docstrings & DocumentationWhat docstrings are, writing docstrings, accessing docstrings, best practices 15–20 min
8. 8 Nested & Helper FunctionsNested functions, helper functions, scope in nested functions, when to use them 20–25 min
9. 9 Lambda FunctionsWhat lambda functions are, lambda syntax, using lambdas, lambda vs regular functions 20–25 min
10. 10 Practical Function ExamplesCombining concepts, real-world applications, code organization, best practices 30–40 min

11. End of unit test

    Ten multiple choice questions worth 7 points each and one free response problem worth 30, so 100 in total. Score 70 or more to finish Unit 3 and unlock Unit 4.

    Take the Unit 3 test