Developing Essential Understanding of Addition and Subtraction for Teaching Mathematics in Pre-Kâ "Grade 2

Janet Caldwell,Karen Karp,Jennifer Bay-Williams,Rose Mary Zbiek

ISBN 10: 0873536649 / ISBN 13: 9780873536646

Published by NCTM, 2011

About this Item

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Bibliographic Details

• Title: Developing Essential Understanding of Addition and Subtraction for Teaching Mathematics in Pre-Kâ "Grade 2
• Publisher: NCTM
• Publication Date: 2011
• Language: English
• ISBN 10: 0873536649
• ISBN 13: 9780873536646
• Binding: paperback
• Condition: Very Good

About this title

Synopsis

What is the relationship between addition and subtraction? How do you know whether an algorithm will always work? Can you explain why order matters in subraction but not in addition, or why it is false to assert that the sum of any two whole numbers is greater than either number? It is organized around two big ideas and supported by smaller, more specific, interconnected ideas (essential understandings). Gaining an understanding about addition and subtraction is essential as they are the foundation for students’ later learning of multiplication and division.