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RightStart™ Mathematics by Activities for Learning, Inc.

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addition

Dr. Cotter on Addition and Subtraction Facts

September 25, 2018 by RightStart™ Math

Addition  Addition can be thought of as finding the whole when the parts are known. Place value greatly simplifies finding the sum of two numbers. To be efficient in adding, we start with the sums of numbers 1 + 1 through 9 + 9. These are best … [Read more...] about Dr. Cotter on Addition and Subtraction Facts

Filed Under: 2. Lessons, 3. Struggling Learner, 4. General Info, 6. Montessori, 7. Classroom Tagged With: addition, addition facts, dr. cotter, Dr. Joan A. Cotter, math, math facts, RightStart, RightStart Math, RightStart Mathematics, subtraction, subtraction facts

2018 Summer Game #13: On the Number Ten

August 27, 2018 by Teresa Foltin

It is one of those blazing hot, 90º summer days. No one wants to be outside but without air conditioning, inside isn’t much better. My boys’ solution to this dilemma is the nice, cool basement where the computer happens to reside. In my desire to get … [Read more...] about 2018 Summer Game #13: On the Number Ten

Filed Under: 1. Card Games Tagged With: adding negative numbers, addition, addition facts, addition games, cards, games, homeschool, math, Math Card Games, math facts, math games, negative numbers, RightStart, RightStart Math, RightStart Mathematics, subtraction, subtraction games, summer, summer games

2018 Summer Game #11: Robbie’s Bead Trading

August 15, 2018 by Beth Reid

My oldest child, Robbie, wants to be a game inventor when he grows up. He’s invented quite a few games, but the majority of them aren’t really math games. They’re heavy on health and damage stats, power-ups, and battles between different cards.... … [Read more...] about 2018 Summer Game #11: Robbie’s Bead Trading

Filed Under: 1. Card Games Tagged With: abacus, addition, addition facts, addition games, AL Abacus, cards, drill, games, homeschool, math, Math Card Games, math facts, math games, RightStart, RightStart Math, RightStart Mathematics, summer, summer games, tutoring

2017 Summer Game #18: Mental Addition

August 16, 2017 by Rachel Anderson

One of the many aspects that drew me to RightStart™ Math was the idea of my children learning how to do mental math. Growing up, the whole idea of mental math was fascinating to me, but it was not encouraged. And, to be honest, I really doubted my … [Read more...] about 2017 Summer Game #18: Mental Addition

Filed Under: 1. Card Games, 4. General Info Tagged With: abacus, addition, addition facts, addition games, AL Abacus, cards, drill, games, homeschool, math, Math Card Games, math facts, math games, mental math, RightStart, RightStart Math, RightStart Mathematics, summer, summer games

Quilting and the AL Abacus

January 8, 2016 by Kathleen Cotter Clayton

I am a quilt designer. I’ve made about 200 quilts in my lifetime, 98% of my own design. I’m currently working on my fourth quilt from someone else’s pattern. I have the directions in front of me as I’m approaching on the final steps of Bonnie … [Read more...] about Quilting and the AL Abacus

Filed Under: 4. General Info, 7. Classroom Tagged With: abacus, addition, AL Abacus, manipulatives, quilting

RS2 Level C, Lesson 113

November 15, 2015 by Kathleen Cotter Clayton

This week’s blog is coming in from California and is compliments of Karen and her eight-year-old son, Aaron. They are in RS2 Level C, Lesson 113, and had a question on the worksheet. Lesson 113, Addition Sum Line Plots,  has us first determine the … [Read more...] about RS2 Level C, Lesson 113

Filed Under: 2. Lessons Tagged With: addition, addition facts, graphing, graphs, homeschool, line plots, math facts, RightStart Math, RightStart Mathematics, tutoring

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