Unit 1 Precalculus Basics
Unit 2 Functions and Graphs
Unit 3 Polynomial Functions
Unit 4 Exponential and Logarithmic Functions
Unit 5 Right Triangle Trigonometry
Unit 6 Law of Sines and Cosines
Unit 7 Trig Identities
Unit 8 Arithmetic and Geometric Sequences and Series
A video for just about every precalculus math topic can be found here or here.
