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Title: The only book you'll need.
Review: I have taught elementary math for over 20 years, and have a master's degree in math education. I found this to be the best book on teaching basic concept of addition and subtraction I have ever had. There are numerous activities which require little preparation, group and individual activities, all of which will teach your students to understand the real meaning of the concepts and help them develop fluency with numbers that will make a significant difference in their futures with math.
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