2020 Summer Game #13: Equal Quotient

Summer is almost over. I know, I know! Some of you are clapping your hands over your ears and muttering “I can’t hear you, I can’t hear you”, but it is happening. Remember when you were a kid and summer lasted forever? My sister and I spent the … [Read more...]

Dr. Cotter on Helping Teach Math

The best way a grandparent, family member, or friend can help a child with math is valuing math and showing a positive attitude. Sadly, about 50% of Americans are afflicted with a strong distaste for math. Unfortunately, developing math anxiety … [Read more...]

Dr. Cotter on Problem Solving

A few years ago while on a shuttle to speak on math at a convention, I started talking to a young man next to me. When he found out I was involved in math, he said he could solve story problems as long as someone told him what operation to use. The … [Read more...]

2018 Summer Game #11: Robbie’s Bead Trading

My oldest child, Robbie, wants to be a game inventor when he grows up. He’s invented quite a few games, but the majority of them aren’t really math games. They’re heavy on health and damage stats, power-ups, and battles between different cards.... … [Read more...]

2018 Summer Game #3: Tens and Ones Bingo

Bingo! All the math bingo games have been winners with my kids but Tens and Ones Bingo, game N40 in the Math Card Games book, is particularly suited for those learning how to form numbers up to 99. Three children played this game today. We only … [Read more...]

RS2 Level F, Lesson 105

Lesson 105 in RS2 Level F is titled Dividing Fractions on a Fraction Chart. This lesson is very critical to understanding division of fractions. Yes, when dividing fractions we are generally taught to just invert and multiply. But why? Why does this … [Read more...]