# 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