Curated OER
The Number System
Review complex numbers, real numbers, irrational and rational numbers, integers, and whole numbers with math students. Use this guide as a reference sheet or handout.
Cool Math
Coolmath: The Difference Quotient Review
Steps and examples for using the difference quotient with a function.
Purple Math
Purplemath: Practical Algebra Lessons
Pre-algebra and algebra lessons, from negative numbers through pre-calculus. Grouped by level of study. Lessons are practical in nature informal in tone, and contain many worked examples and warnings about problem areas and probable...
Cool Math
Coolmath: Pre Calculus Other Identities to Know
One page reference sheet of a quick recall of the Trig Identities.
Cool Math
Coolmath: Pre Calculus Graphs to Know and Love
A list and visuals of standard graphs from y = x to an absolute value.
Cool Math
Coolmath: Pre Calculus Shifting, Reflecting, Etc.
Description and examples of shifting and reflecting various graphs.
Cool Math
Coolmath: Polynomials
Description and examples to build an understanding of the shapes of polynomials.
