Debug Algorithm

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Subtraction Algorithms for all grades

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This file contains the notes I took at the NCTM Conference in Chicago. I attended a presentation on Subtraction by Frances Stern. She taught various ways to subtract with regrouping. My most favorite to use in class is the number line and France's way on pages 6-7. The France way is what I refer to in my class as "Give, Give It Back"...It's SO MUCH EASIER TO TEACH AND UNDERSTAND than the Traditional U.S. way. I don't know where this has been all my life. Please give it a try! It takes some pract

2nd - 9th

Arithmetic, Math, Mental Math

Addition and Subtraction Strategy Posters

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Teach Train Triumph

These posters are designed to be displayed in your classroom to show the different ways your students can add and subtract. They are great alternatives to teaching the traditional algorithm, especially since it can be so difficult to understand. These strategies can also help with mental math strategies as well. Check out my Math Strategy handout that I send home to parents so students can have access to the strategies all the time. These strategies are IDEAL for beginning 2 and 3 digit addi

2nd - 4th

Basic Operations, Mental Math