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RightStart™ Mathematics by Activities for Learning, Inc.

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Cotter AL Abacus Apps

Want to take the Cotter Abacus with you? We have an app for that.

Check out the Cotter AL Abacus iPhone and iPad app in iTunes. Also available for Android devices!

Want sample lessons to go with your iPhone or iPad app? We have that too!

Think of the Cotter Abacus compared to a recipe. The first few times the food is made, the recipe is carefully referred to. Then, over time, when the chef becomes more comfortable, they will reference the recipe less often, only checking when they are unsure. Finally, after repeated successes, the recipe card is unneeded.

This analogy can be applied to the Cotter Abacus. Initially, the abacus will be used consistently. Then, over time, it will be only used to verify information. Finally, it will be set aside and no longer needed.

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What our Customers Are Saying

Thank you so much for your RightStart Math Curriculum. I have been using it for 3 years with my son and my daughter is beginning her second year. I love the strategies you use for teaching math and the lessons are fun to teach.
Jennifer Traugott
My daughter is 7 and this is our 2nd year to use RightStart Math. She is in 2nd grade and is adding and subtracting 4 digits numbers with trading like it is nothing. She also can do her multiplications. The most amazing thing is that when she is somewhere and has to spend her money she is quick to tell them how much change she needs back. I have seen a lot of teenagers and adults who cannot do thi… Read more
Jana Owens
My daughter is in 4th grade this year. Math has always been a struggle for her, as it was for her father. I discovered that she has dyslexia (which is hereditary). I didn’t realize that had any effect on math, but I found out that people with dyslexia cannot learn with rote memorization or sequential skills. This makes it harder for them to remember math facts or how to do algorithms. Before I kne… Read more
Anna Knotts

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