AP Precalculus is a special math class for big kids who already learned some math stuff like adding and subtracting and want to learn some more cool math things. In this class, you will learn about different kinds of functions, which are just like machines that can turn one number into another number. You will learn how to use these functions to solve problems like finding a point on a graph or figuring out how fast something is moving. You will also learn about trigonometry, which is a fancy word for the study of triangles. This will help you understand things like how tall a building is without actually measuring it. In AP Precalculus, you will also learn about imaginary numbers, which sound made up but are actually very useful in lots of math things. It's like learning a secret code that can help you solve really hard problems. Overall, AP Precalculus is a class that will help you become really good at math and give you the tools you need to solve all kinds of real-world problems.