Dan Greenberg

Dan Greenberg
Dan Greenberg is author of 20 books for Scholastic Professional Books including Fabulous Fractions and Comic Strip Math, both of which have sold over 75,000 copies. Dan is currently working on True Tales of Deep Irony and Petty Vindication, a cartoon series that he hopes to turn into a book.
Author of the chapter(s):

Equations and Functions; Probability
Multiplication and Division of Fractions
Probability
Ratios, Proportions, and Percents
Surface Area and Volume
Using Probability

Randy Green

Randy Green
Randy Green is a freelance editor and writer of mathematics textbooks and ancillaries. She has a Bachelor of Arts in Mathematics from the State University of New York at Albany and a Master of Science in Education from Queens College. Randy started her editorial career at Holt, Rinehart, and Winston. She taught high school math before returning to a career as a freelance editor/writer. She specializes in editing and writing math books for grades 4 through 8.
Author of the chapter(s):

Addition and Subtraction of Decimals
Multiplication and Division of Decimals
Number Sense and Variable Expressions
Using Percents

Niamh Gray-Wilson

Niamh Gray-Wilson
Niamh Gray-Wilson is a freelance science writer and editor living in Austin, Texas. She hails from Galway, Ireland and graduated from the National University of Ireland, Galway with a bachelor’s degree in microbiology.
Author of the chapter(s):

Bacteria and Viruses
Cell Structure and Function
Circulatory and Respiratory Systems
Foundations of Life Science
Fungi
Mendelian Genetics
Nervous and Endocrine Systems
Protists
Reptiles and Birds
Skeletal, Muscular, and Integumentary Systems
The Human Body

Anne Gloag

Anne Gloag
Anne Marie Gloag was born in Bucharest, Romania and moved the US when she was 14. She graduated Old Dominion University with a major in applied mathematics and obtained a PhD in applied mathematics from Northwestern University in 1996. After working in the UK for 2 years, she moved to San Diego, California. She has been teaching mathematics and chemistry at High Tech High for 7 years.
Author of the chapter(s):

Exponents and Exponential Functions
Expressions, Equations, and Functions
Graphing Linear Equations and Functions
Linear Equations
Linear Inequalities and Absolute Value; Introduction to Probability
Polynomials and Factoring; More on Probability
Properties of Real Numbers
Quadratic Equations and Functions
Radicals and Geometry Connections; Data Analysis
Rational Equations and Functions; Statistics
Systems of Equations and Inequalities; Counting Methods
Writing Linear Equations

Andrew Gloag

Andrew Gloag
Andrew John Gloag was born in the North East of England and graduated from Oxford University in 1992 with a Bachelors degree in Physics. He obtained his PhD from Strathclyde University, Scotland in 1996 and worked in fiber-optics research until he moved to San Diego, California in 1999. He currently teaches physics and mathematics at High Tech High School in San Diego.
Author of the chapter(s):

Circles
Exponents and Exponential Functions
Expressions, Equations, and Functions
Graphing Linear Equations and Functions
Linear Equations
Linear Inequalities and Absolute Value; Introduction to Probability
Polynomials and Factoring; More on Probability
Properties of Real Numbers
Quadratic Equations and Functions
Radicals and Geometry Connections; Data Analysis
Rational Equations and Functions; Statistics
Systems of Equations and Inequalities; Counting Methods
Writing Linear Equations

Tirupalavanam G. Ganesh

Tirupalavanam G. Ganesh
Tirupalavanam G. Ganesh is an Assistant Dean for Information Systems in the Mary Lou Fulton College of Education at Arizona State University. He has bachelors and masters degrees in computer science and engineering and a PhD in interdisciplinary studies. He is the recipient of an NSF award from the Information Technology Experiences for Students and Teachers (ITEST). His research interests include STEM education; exploring and harnessing the potential offered by emerging technologies in the communication of research; use of graphical data analysis techniques with large-scale data sets; and the use of visual data in educational research.
Author of the chapter(s):

Connecting Science and Mathematics to Engineering
Engineering & Society
Introduction to Engineering Design
Nature of Engineering

Craig Freudenrich

Craig Freudenrich
Craig Freudenrich, Ph.D., is a freelance science writer. He earned a B.A. in biology from West Virginia University and a Ph.D. in physiology from the University of Pittsburgh School of Medicine. He has over 25 years experience in biomedical research, science education, and science writing.
Author of the chapter(s):

Studying Earth’s Surface

Therese Forsythe

Therese Forsythe
I am currently a programs consultant for High School in Nova Scotia but spent ten years teaching chemistry. I spend most of my time in-servicing teachers in the pedagogy surrounding science and math teaching and taking care of my two beautiful boys.
Author of the chapter(s):

Acids, Bases
Chemical Equilibrium
Chemical Kinetics
Chemical Reactions
Chemistry in the Laboratory
Ions in Solution
Mathematics and Chemical Equations (Stoichiometry)
Organic Chemistry
Relationships between the Elements
The Solution Process
Thermodynamics
Trends on the Periodic Table
Water, pH and Titration

Kenny Felder

Kenny Felder
Kenny Felder is a math and Physics teacher at Raleigh Charter High School. He maintains a Web page with explanations of math and Physics topics at http://www.ncsu.edu/felder-public/kenny.

Jonathan Edge

Jonathan Edge
Jonathan Edge currently teaches chemistry and physics at Arleta High School. He has been a teacher with the Los Angeles Unified School District for 9 years, and has previously worked as an environmental chemist. He is a 1984 graduate of Whittier College, and in his spare time enjoys bicycling and building model airplanes.
Author of the chapter(s):

Chemistry, a Physical Science
Covalent Bonding: Making Molecules
Ions and the Compounds They Make
More Topics in Covalent Bonding
The Mathematics of Compounds
Writing and Naming Ionic Formulas