Well! We had a super windy week up here in North Dakota. I picked up tree branches, twigs, and leaves from my lawn every day. I’d have it all cleaned up, then I’d look out the window again and it looked just as bad. Some friends took their camper 45 … [Read more...] about 2016 Summer Game: Concentrating on One
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2016 Summer Game: Piggyback Race
How’s your summer been? I was at a family reunion in Prescott, Wisconsin last weekend. We had four generations that day at the farm that my grandparents purchased many many years ago. My dad grew up on this patch of heaven, his sister and husband … [Read more...] about 2016 Summer Game: Piggyback Race
Dr. Cotter on Subtraction Approaches
There are at least eight different ways to subtract multi-digit numbers. Even though a person has learned one method, it is good to explore other methods to enhance understanding. If a child has an accurate and efficient method of subtraction, do … [Read more...] about Dr. Cotter on Subtraction Approaches
Dr. Cotter on What 6 × 3 Means
Sometimes 6 × 3 is thought of as “6 groups of 3.” However, consistency with the other arithmetic operations requires a second look. When adding 6 + 3, we start with 6 and transform it by adding 3. When subtracting 6 – 3, we start with 6 and transform … [Read more...] about Dr. Cotter on What 6 × 3 Means
Dr. Cotter on Long Division
As far as long division is concerned, it no longer has the importance it had in past generations. No one today spends time on their job doing long division. Long division with that guessing component is not used higher mathematics. It is rarely on … [Read more...] about Dr. Cotter on Long Division
Dr. Cotter on Multivides
For a child with learning disabilities doing multivides, I suggest this shorter version: Start with any 4-digit number and multiply it by 4, then 5, and 6. Then divide the final product by 4, then 5, and 6. The final quotient must be the same as … [Read more...] about Dr. Cotter on Multivides
