Developing Essential Understanding of Addition and Subtraction for Teaching Mathematics in Prekindergarten-Grade 2

by Janet H. Caldwell

Book Overview

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 organised around two big ideas and supported by smaller, more specific, interconnected ideas (essential understandings). Gaining an understanding about addition and...

• Format: Hardcover
• Language: English
• ISBN: 0873536649
• ISBN13: 9780873536646
• Release Date: January 2011
• Publisher: National Council of Teachers of English
• Length: 85 Pages
• Weight: 0.85 lbs.