Articles by Dr. Cotter
Multiplication has been the mathematical downfall of many children (and adults!). It’s not so much the problem of the algorithms,
Most people think of counting as the foundation of math; therefore, they teach kids to memorize the long string of
Dr. Cotter has an article published in the Hungarian journal Symmetry: Culture and Science, Volume 34, Number 3! Her article
Encourage the children to learn intuitively. Intuition is a method of learning that is becoming increasingly more important in our
There are at least eight different ways to subtract multi-digit numbers. Even though a person has learned one method, it
Sometimes 6 × 3 is thought of as “6 groups of 3.” However, consistency with the other arithmetic operations requires
As far as long division is concerned, it no longer has the importance it had in past generations. No one