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Mental Math Strategies for Learning +0, +1 Facts

Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Mental Math Strategies for Learning +0, +1 Facts
Product Description
This is the third of 11 animated Power Points that strategically teach the addition facts using the relation-based strategies inspired by John A. Van de Walle. The series introduces students to the strategies for learning their addition facts based on relationships of number combinations. This approach to teaching facts eliminates the need for students to "memorize" 120 facts. Through concept development and understanding of the number system, students only have to memorize, understand, and apply these NINE strategies to master their addition facts up to 20 (10 + 10). Nine is far less than 120!

This slide show teaches students how to “count up” by 1 using a number line. Each slide gives students a visual image of what “counting up 1” really means, explaining that the first addend is the beginning place on the number line. The “counting up” equates with a “move up” on the line. It also demonstrates adding zero using a number line, allowing students to “see” that the sum is the same as the nonzero addend, since there is no movement on the number line.

This should be an easy concept for students; however, many younger children do not have the understanding of conservation. Therefore, when given a number sentence such as 8 + 1, they will begin by saying, “1,2,3,4,5,6,7,8” then adding one more. This PowerPoint teaches students to use the number line for the first addend, in hopes that the student will begin to do the same once the number line is removed.

I introduce this strategy to students, then place small number lines on their desks and on top of their basic facts worksheets. Eventually, I stop drawing the number line on their worksheets and allow students to draw their own if needed.

Additionally, I use the PowerPoint as a daily review. I often present the slide show to students on the Smart Board, allowing it to loop throughout the day, giving students constant exposure to the pictures and facts. Since the slide show does not have sound, students who finish their work early have something to watch.
Total Pages
27 slides
Answer Key
N/A
Teaching Duration
N/A
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