商品簡介
Small, a professional developer and professor of math education, explains how to uncomplicate the teaching of fractions by focusing on the most important ideas that students in grades one through seven need to know. Chapters are organized by grade level and the Common Core State Standards for Math related to fractions, decimals, ratios, and proportional thinking. For each, a part of the relevant standard is detailed, along with the underlying ideas associated with it, including background to the math of the standard, suggestions for representations (including manipulatives), suggestions for explaining ideas to students, and cautions about misconceptions or situations to avoid, as well as questions to ask to bring out those ideas. Annotation c2014 Book News, Inc., Portland, OR (booknews.com)
