
Teaching Fractions and Ratios for Understanding
Essential Content Knowledge and Instructional Strategies for Teachers
Susan J. Lamon(Author)
Routledge (Publisher)
5th Edition
Published on 28. September 2025
Book
Paperback/Softback
276 pages
978-1-032-93600-0 (ISBN)
Description
The fifth edition of this user-friendly textbook helps mathematics educators explore and explain the complex world of rational numbers. It translates research into usable ideas for the classroom, including reasoning strategies, models, and questioning techniques that promote deep understanding that cannot be achieved by merely practicing fraction computation.
Updated throughout with new examples and models from research, each chapter in the new edition incorporates samples of student work for teacher analysis, as well as activities for practicing each thinking strategy, designed to be solved without rules or algorithms, using reasoning alone. All content has been used with students and is presented with the learner in mind, acknowledging the brilliance of students' insights as well as the issues that challenge their understanding. It covers a broad range of topics in the progression from relative thinking to proportional reasoning, including fractions, ratios, rates, operators, measures, percents, and more.
For over two decades, Teaching Fractions and Ratios for Understanding has helped elementary and middle school teachers expand their understanding and teaching strategies for rational number topics. The fifth edition is essential reading for mathematics courses, teacher preparation courses, graduate courses preparing researchers in mathematics education, and parents engaged in home schooling.
Updated throughout with new examples and models from research, each chapter in the new edition incorporates samples of student work for teacher analysis, as well as activities for practicing each thinking strategy, designed to be solved without rules or algorithms, using reasoning alone. All content has been used with students and is presented with the learner in mind, acknowledging the brilliance of students' insights as well as the issues that challenge their understanding. It covers a broad range of topics in the progression from relative thinking to proportional reasoning, including fractions, ratios, rates, operators, measures, percents, and more.
For over two decades, Teaching Fractions and Ratios for Understanding has helped elementary and middle school teachers expand their understanding and teaching strategies for rational number topics. The fifth edition is essential reading for mathematics courses, teacher preparation courses, graduate courses preparing researchers in mathematics education, and parents engaged in home schooling.
More details
Edition
5th edition
Language
English
Place of publication
London
United Kingdom
Publishing group
Taylor & Francis Ltd
Target group
College/higher education
Professional and scholarly
Postgraduate and Undergraduate Advanced
Illustrations
1785 s/w Abbildungen, 221 s/w Photographien bzw. Rasterbilder, 1564 s/w Zeichnungen
1564 Line drawings, black and white; 221 Halftones, black and white; 1785 Illustrations, black and white
Dimensions
Height: 254 mm
Width: 178 mm
Weight
540 gr
ISBN-13
978-1-032-93600-0 (9781032936000)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
Schweitzer Classification
Other editions
Additional editions

Susan J. Lamon
Teaching Fractions and Ratios for Understanding
Essential Content Knowledge and Instructional Strategies for Teachers
E-Book
09/2025
5th Edition
Routledge
€86.99
Available for download

Susan J. Lamon
Teaching Fractions and Ratios for Understanding
Essential Content Knowledge and Instructional Strategies for Teachers
E-Book
09/2025
5th Edition
Routledge
€86.99
Available for download

Susan J. Lamon
Teaching Fractions and Ratios for Understanding
Essential Content Knowledge and Instructional Strategies for Teachers
Book
09/2025
5th Edition
Routledge
€193.50
Shipment within 10-20 days
Previous edition

Susan J. Lamon
Teaching Fractions and Ratios for Understanding
Essential Content Knowledge and Instructional Strategies for Teachers
Book
03/2020
4th Edition
Routledge
€69.50
Shipment within 15-20 days
Person
Susan J. Lamon is Professor Emerita of Mathematics, Statistics, and Computer Science at Marquette University, USA.
Content
1. Proportional Reasoning: An Overview 2. Fractions and Rational Numbers 3. Relative Thinking and Measurement 4. Quantities and Covariation 5. Proportional Reasoning 6. Reasoning with Fractions 7. Fractions as Part-Whole Comparisons 8. Fractions as Quotients 9. Fractions as Operators 10. Fractions as Measures 11. Ratios and Rates 12. Distance - Speed - Time 13. Summary 14. Problem Solving