This is a systematic exposition of introductory school algebra written specifically for Common Core era teachers. The emphasis of the exposition is to give a mathematically correct treatment of introductory algebra. For example, it explains the proper use of symbols, why ``variable'' is not a mathematical concept, what an equation is, what equation-solving means, how to define the slope of a line correctly, why the graph of a linear equation in two variables is a straight line, why every straight line is the graph of a linear equation in two variables, how to use the shape of the graph of a quadratic function as a guide for the study of quadratic functions, how to define a parabola correctly, why the graph of a quadratic function is a parabola, why all parabolas are similar, etc. This exposition of algebra makes full use of the geometric concepts of congruence and similarity, and it justifies why the Common Core Standards on algebra are written the way they are.

About the Author
Hung-Hsi Wu, University of California, Berkeley, CA, USA.

Reviews
"...[T]here is a serious dimension to these books that is often not present in standard 'mathematics for teachers' textbooks...This series doesn't bother with the typical chapters on problem solving and elementary set theory that are very much the norm in books for this course, but strikes a blow for serious work by diving right into fractions...We need books for future teachers that take this approach to our subject." - Mark Bollman, MAA Reviews



Book Information
ISBN 9781470427214
Author Hung-Hsi Wu
Format Hardback
Page Count 283
Imprint American Mathematical Society
Publisher American Mathematical Society
Weight(grams) 678g