Professors of Mathematics, Los
Angeles Pierce
College, Retired

We are pleased to offer three
textbooks in a free open source format, through the
auspices of the American Institute of Mathematics Open
Textbook Initiative. (You can see their list of
approved open source textbooks.)

## Modeling, Functions, and Graphs

This text covers the content of a college algebra course with an emphasis on modeling and applications.

- An
Activities Workbookfor this text is available at lulu.com. The booklet contains guided classroom activities for each section of the text.- A computer homework system is available at xyzhomework.com.
## Trigonometry

This text covers the content of a standard trigonometry course, beginning with a review of facts from geometry.

- It includes chapters on vectors, polar coordinates, and complex numbers.
- Coming soon: A computer homework system at xyzhomework.com
## Elementary Algebra

This text introduces the basic skills and ideas of algebra.

- A print version of this textbook is available at xyztextbooks.com.
- An Activities Workbook is available at xyztextbooks.com.
- A computer homework system is available at xyzhomework.com.
Printed versions of these books are available at Lulu:

- Elementary Algebra, A
Modeling Approach

#### Table of Contents

- Variables and Equations
- Linear Equations
- Graphs of Linear Equations
- Applications of Linear Equations
- Exponents and Roots
- Quadratic Equations
- Polynomials
- Algebraic Fractions
- More About Exponents and Roots

There is an**Activities Workbook**to accompany this text, and an**Instructor's Manual**.

- Intermediate Algebra, A
Modeling Approach

#### Table of Contents

- Linear Models
- Applications of Linear Models
- Quadratic Models
- Applications of Quadratic Models
- Functions and Their Graphs
- Powers and Roots
- Exponential Functions
- Polynomials and Rational Functions
- Equations and Graphs

**Activities Workbook**to accompany this text, and an**Instructor's Manual**.

- Essential Algebra:
Elementary and Intermediate Algebra Combined (2 volumes)

This text was written for an accelerated community college course. Students earned credit for both

Elementary and Intermediate Algebra.

#### Table of Contents

- Variables and Equations
- Linear Equations
- Linear Models
- Applications of Linear Models

- Quadratic Equations
- Quadratic Models

- Systems and Graphs

- Functions
- Powers and Roots
- Exponential and Logarithmic Functions
- Polynomials and Rational Functions

**Activities Workbook**to accompany this text, and an**Instructor's Manual**.

Core Mathematics for College Students

This text is intended
for students who need a refresher of basic mathematical ideas
and elementary algebraic skills.

It can be used in a
prealgebra course or a foundation course for non-STEM majors. It is designed as a worktext, and
emphasizes understanding of concepts.

## Table of Contents

- Preliminary Ideas

Halves and Quarters, Tenths and Hundredths, Whole Numbers, Angles and Triangles, Perimeter and Area

- Numbers and Variables

Decimal Numbers, More Fractions and Percents, Variables, Algebraic Expressions, Equations

- Measurement

Volume and Surface Area, Exponents, Units of Measure, Circles and Spheres, Large Numbers

- Calculation

Adding and Subtracting Fractions, Multiplying and Dividing Fractions, Order of Operations, Roots and Radicals, Negative Numbers

- Using Variables

Working with Variables, More Algebraic Expressions, Problem Solving, More Equations, Graphs

- Signed Numbers

Addition of Signed Numbers, Subtraction of Signed Numbers, Multiplication and Division of Signed Numbers, Working with Signed Numbers, Equations and Graphs

- Core Concepts

Ratio, Proportion, Similarity, Slope, More About Similarity

This
book is also available in four modules: **Numbers,
Measurement, Fractions, Sign****ed Numbers**, and **Variables**

Kathy Yoshiwara was born in Derby in the UK and grew up in Richmond, Virginia. She attended Michigan State University, where she studied Greek and mathematics. She did graduate work at UCLA and earned an MA in mathematics in 1977. She left UCLA in 1979 to join the faculty at Pierce College, where she taught for 33 years, retiring in 2013. In the 1998-1999 academic year she taught at Barnsley College in Yorkshire, England on a Fulbright teaching exchange. In 1996 she received the Award for Distinguished College or University Teaching of Mathematics from the Southern California Section of the MAA. In November 2003, she won the Teaching Excellence Award for the Western Region from the American Mathematical Association of Two-Year Colleges (AMATYC). She is married to Bruce Yoshiwara and benefits from his expertise in all things mathematical.

Bruce
Yoshiwara earned his PhD in mathematics at UCLA in 1988.
He received the 2008 Award for Distinguished College or
University Teaching of Mathematics from the Southern
California-Nevada Section of the MAA, a 2009 Teaching
Excellence Award from AMATYC, and a 2011 Hayward Award
for Excellence in Education from the Board of Governors
of the California Community Colleges. He is co-author
(his wife Katherine is principal author) of several math
textbooks.