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 | Developing Essential Understanding of Ratios, Proportions, and Proportional Reasoning for Teaching Mathematics in Grades 6-8 (Updated Edition) by Joanne Elizabeth Lobato, Amy B. Ellis, Randall Inners Charles, Rose Mary Zbiek (Series Editor) Paperback, 88 Pages, Published 2010 ISBN-10: 0-87353-622-3 / 0873536223 ISBN-13: 978-0-87353-622-6 / 9780873536226 How do you refute the erroneous claim that all ratios are fractions? This book goes beyond a simple introduction to ratios, proportions, and proportional reasoning. It will help broaden and deepen your mathematical understanding of one of the most challenging topics for students and teachers to gras | |