Why Number Sense Matters
September 3, 2026
What if your child could look at a number and actually SEE it? Not just recognize the symbol 8, but understand that 8 is five and three,
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Tag: number sense
Subitizing: What Is It and Why Does It Matter?
August 27, 2026
What if one of the most important math skills your child can develop begins with simply looking at a group of objects and knowing how
Teaching Children to Think Like Mathematicians
August 20, 2026
For generations, children have often learned mathematics in much the same way: learn the numbers, memorize the facts, follow the steps, complete the worksheet,
Cotter Abacus vs. Colored Rods
August 13, 2026
One of the joys of homeschooling is being able to slow down and ask an important question: Does my child really understand this, or have
Memorizing Math Facts or Knowing Them? There IS a Big Difference
August 6, 2026
“Has your child memorized the multiplication facts yet?” It’s a question many homeschool parents hear—and often worry about. For generations, we’ve been told that
Why Homeschoolers Love RightStart Math
June 25, 2026
Choosing a math curriculum can feel overwhelming. Homeschool parents have more options than ever before, and every program promises success. Yet year after year,
Start Math Right – Number Sense Chapter
June 23, 2025
Want to get a peek into one of the chapters from the new Start Math Right: The Journey to Mathematics Excellence book? We got
Dr. Cotter on Language
April 23, 2024
Mathematical Words In mathematics, we can’t do much without using language. Even though the mathematician may write a mass of equations, she needs words
Dr. Cotter on Counting
November 14, 2023
Most people think of counting as the foundation of math; therefore, they teach kids to memorize the long string of 100 counting words. Next,
2023 Summer Game #3: Zero Game
July 4, 2023
Have you ever wondered how to teach nothing? I’m not talking about taking a break from formal teaching over the summer – although maybe you’re