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
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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
Dr. Cotter on Symmetry
Dr. Cotter has an article published in the Hungarian journal Symmetry: Culture and Science, Volume 34, Number 3! Her article is titled Symmetry for Children Using Drawing Board Tools and Tangrams. The abstract reads: Young children are unable to ... Read More
RS2 Level H, Lesson 91
Susan wrote us: “Hello, my son and I are struggling with Lesson 91, with problems 9 & 10. Can we please have an explanation? Love your materials! Thank you.” Well, Susan, this took me a while to come up with a good clear explanation! Here’s my ... Read More
RS2 Level H, Lesson 82
Today’s blog is thanks to Joanna and her son, Hunter. They live in Florida and started with Level A and are now working on Level H! Here’s Hunter working on Level H, Lesson 82….. This lesson is on pyramids. One of the goals of the lesson is ... Read More
RS2 Level H, Lessons 45, 46, and 47
The RS2 Level H Lessons 45, 46, and 47 are some of my most favorite lessons. They can be a challenge to grasp, but, oh, what fun when you get it! So, rather than type a long winded explanation and have you read it, I made a video for you. With ... Read More