This site contains high school Precalculus lessons on video from four experienced high school math teachers. There are also packets, practice problems, and answers provided on the site.
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Education Week: Precalculus Is the Fastest-Growing AP Course. That’s Reshaping K-12 Math
The Precalculus course covers complex numbers; composite functions; trigonometric functions; vectors; matrices; conic sections; and probability and combinatorics. It also has two optional units on series and limits and continuity.
Precalculus is a mathematical course or a set of courses that act as a foundation for calculus. The two main topics that are included under precalculus are algebra and trigonometry. Precalculus courses can be structured differently depending upon the type of career path chosen by students.
Study precalculus online free by downloading OpenStax's Precalculus 2e textbook and using our accompanying online resources including a precalculus study guide.
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Master precalculus with clear explanations, step-by-step solutions, and free guided notes at Understand the Math. This page covers functions, polynomial and rational expressions, exponential and logarithmic functions, trigonometry, conic sections, sequences, and more.
In mathematics education, precalculus is a course, or a set of courses, that includes algebra and trigonometry at a level that is designed to prepare students for the study of calculus, thus the name precalculus (from pre-, 'beforehand').