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Prealgebra by OpenStax in pdf


Dowload this PDF book: Prealgebra by OpenStax (hardcover version, full color) 1st Edition by Lynn Marecek (Santa Ana College), MaryAnne Anthony-Smith (formerly of Santa Ana College)

Prealgebra is designed to meet scope and sequence requirements for a one-semester prealgebra course. The book s organization makes it easy to adapt to a variety of course syllabi. 

The text introduces the fundamental concepts of algebra while addressing the needs of students with diverse backgrounds and learning styles. Each topic builds upon previously developed material to demonstrate the cohesiveness and structure of mathematics.

Coverage and Scope 

Prealgebra follows a nontraditional approach in its presentation of content. The beginning, in particular, is presented as a sequence of small steps so that students gain confidence in their ability to succeed in the course. 

The order of topics was carefully planned to emphasize the logical progression throughout the course and to facilitate a thorough understanding of each concept. As new ideas are presented, they are explicitly related to previous topics. 

Chapter 1: Whole Numbers Each of the four basic operations with whole numbers—addition, subtraction, multiplication, and division—is modeled and explained. As each operation is covered, discussions of algebraic notation and operation signs, translation of algebraic expressions into word phrases, and the use the operation in applications are included. 

Chapter 2: The Language of Algebra Mathematical vocabulary as it applies to the whole numbers is presented. The use of variables, which distinguishes algebra from arithmetic, is introduced early in the chapter, and the development of and practice with arithmetic concepts use variables as well as numeric expressions. In addition, the difference between expressions and equations is discussed, word problems are introduced, and the process for solving one-step equations is modeled. 

Chapter 3: Integers While introducing the basic operations with negative numbers, students continue to practice simplifying, evaluating, and translating algebraic expressions. The Division Property of Equality is introduced and used to solve one-step equations. 

Chapter 4: Fractions Fraction circles and bars are used to help make fractions real and to develop operations on them. Students continue simplifying and evaluating algebraic expressions with fractions, and learn to use the Multiplication Property of Equality to solve equations involving fractions. 

Chapter 5: Decimals Basic operations with decimals are presented, as well as methods for converting fractions to decimals and vice versa. Averages and probability, unit rates and unit prices, and square roots are included to provide opportunities to use and round decimals. 

Chapter 6: Percents Conversions among percents, fractions, and decimals are explored. Applications of percent include calculating sales tax, commission, and simple interest. Proportions and solving percent equations as proportions are addressed as well. 

Chapter 7: The Properties of Real Numbers The properties of real numbers are introduced and applied as a culmination of the work done thus far, and to prepare students for the upcoming chapters on equations, polynomials, and graphing.

Chapter 8: Solving Linear Equations A gradual build-up to solving multi-step equations is presented. Problems involve solving equations with constants on both sides, variables on both sides, variables and constants on both sides, and fraction and decimal coefficients. 

Chapter 9: Math Models and Geometry The chapter begins with opportunities to solve “traditional” number, coin, and mixture problems. Geometry sections cover the properties of triangles, rectangles, trapezoids, circles, irregular figures, the Pythagorean Theorem, and volumes and surface areas of solids. Distance-rate-time problems and formulas are included as well. 

Chapter 10: Polynomials Adding and subtracting polynomials is presented as an extension of prior work on combining like terms. Integer exponents are defined and then applied to scientific notation. The chapter concludes with a brief introduction to factoring polynomials. 

Chapter 11: Graphs This chapter is placed last so that all of the algebra with one variable is completed before working with linear equations in two variables. 

Examples progress from plotting points to graphing lines by making a table of solutions to an equation. Properties of vertical and horizontal lines and intercepts are included. Graphing linear equations at the end of the course gives students a good opportunity to review evaluating expressions and solving equations.

Table of Contents:

Whole Numbers 

The Language of Algebra





The Properties of Real Numbers 

Solving Linear Equations 

Math Models and Geometry 



About the Author

ABOUT OPENSTAX: OpenStax is a nonprofit educational initiative based at Rice University, whose mission is to give every student the tools they need to be successful in the classroom. 

OpenStax publishes high-quality, peer-reviewed, openly licensed college textbooks that are absolutely free online and low cost in print. 

Through partnerships with philanthropic foundations and alliances with other educational resource companies, OpenStax strives to break down the most common barriers to learning as they believe that a well-educated society profits us all.

About the book:

Publisher ‏ : ‎ XanEdu Publishing Inc; 1st edition (September 5, 2015)

Language ‏ : ‎ English

Pages ‏ : ‎ 1146 

File: PDF, 20MB


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