Place value is the very foundation of arithmetic. Place value packages numbers into groups of tens and tens of tens. This makes calculating large numbers similar to adding single-digit numbers: 3 + 4 is similar to 30 + 40, 300 + 400, 3000 + 4000, and … [Read more...] about Dr. Cotter on Place Value
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Dr. Cotter on Multiplication
Multiplication has been the mathematical downfall of many children (and adults!). It's not so much the problem of the algorithms, but rather it's the problem of the memorization of the 100 facts. Before expecting the child to learn the facts, we … [Read more...] about Dr. Cotter on Multiplication
Dr. Cotter on Counting
Most people think of counting as the foundation of math; therefore, they teach kids to memorize the long string of 100 counting words. Next, to count objects, they teach them to touch each block in turn while saying the next word in the string. After … [Read more...] about Dr. Cotter on Counting
2023 Summer Game #6: Quotient and Remainder
Question: How do you divide 14 potatoes between 4 people? Answer: Mash them. Hahahaha! Most children do not enjoy solving division problems – especially problems with remainders! However, the Quotient and Remainder game found in the Math Card … [Read more...] about 2023 Summer Game #6: Quotient and Remainder
2023 Summer Game #3: Zero Game
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 doing that, too! I’m talking about the number zero. The concept of zero can be a struggle for small … [Read more...] about 2023 Summer Game #3: Zero Game
2020 Summer Game #9: Long Chain Solitaire
As I was contemplating games for this week, I tossed around a couple ideas. Not able to make up my mind, I asked Dr. Cotter which game was her favorite. Without hesitation, she said, “Long Chain Solitaire”. I told her we’d played Short Chain … [Read more...] about 2020 Summer Game #9: Long Chain Solitaire
