Quilting and the Cotter Abacus
October 30, 2025
I am a quilt designer. I’ve made over 250 quilts in my lifetime, 98% of my own design. I’m currently working on my sixth
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Tag: manipulatives
Start Math Right – Teaching Materials Chapter
July 1, 2025
Want to get a peek into another chapter from the new Start Math Right: The Journey to Mathematics Excellence book? Check this out! Kerry
RightStart™ Manipulatives
April 16, 2025
What’s so special about the manipulatives used for the RightStart™ Mathematics program? Let’s run through the list. NOT AVAILABLE ELSEWHERE: Cotter AL Abacus: This abacus
Dr. Cotter on Manipulatives
December 11, 2023
When teaching math to a child, there are three important questions to consider: Are manipulatives necessary for teaching math? What is the purpose of
Ellen on Manipulatives
January 25, 2018
“What is the Math Set for?” This is a frequently asked question. Last year, I got to meet a lot of homeschoolers at conventions.