Week 4: Functions with Lists

This week, you’ll learn how to make your functions even smarter by giving them a list of items to work with. You’ll use loops to go through each item, build brand-new lists, and return them. Along the way, you’ll help Aisha with her mystery books, Paul with his jersey numbers, and Emma with Miami weather—let’s get started!

Learning goals

• Pass a list as a function argument.
• Use a for loop to process every item in the list.
• Build a new list with append() and return it.
• Apply conditions to filter items into a new list.
• Transform data from one type to another inside a function.