ONE MATHEMATICAL CAT, PLEASE! A First Course in Algebra
This is a complete, sequenced, free course. It has unlimited, randomly-generated exercises and worksheets. It can be used for a year-long high school course, or a one-semester college course.
You're about to learn that $\,x\,$ is to mathematics as ‘cat’ is to English. Next time you see ‘$\,x\,$’, I hope you think One Mathematical Cat, Please! and laugh a bit $\ldots\,$ making mathematics a little less stressful, and a little more fun.
Sections with the light green background are from the original ‘cat’ book (cat-on-swing). It was filled out to become this First Course in Algebra (which is also available as the cat-in-hammock book).
Solving For A Particular Variable
(important for science classes)
Scientific Notation and Significant Figures
(important for science classes)
A Conundrum: When is Equal, not Equal? Or, not Equal, Equal?
Prime Numbers and Related Concepts
(Short on time? Section 13.5 can be skipped without any loss of continuity.)
Applications and More
Factoring a Difference of Squares
Solving Equations Involving Perfect Squares
Factoring Trinomials
Solving Quadratic Equations by Factoring
More on Quadratic Equations
Arithmetic with Fractions Involving Variables
Percent Increase and Decrease
Introduction to the Coordinate Plane
Lines
More On Lines
Functions