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Dr. Cotter has an article published in the Hungarian journal Symmetry: Culture and Science, Volume 34,…
RS2 Level H, Lesson 91 September 15, 2023 by Kathleen Cotter Clayton Susan wrote us: “Hello, my son…
RS2 Level H, Lesson 82 September 14, 2023 by Kathleen Cotter Clayton Today’s blog is thanks to Joanna and…
The RS2 Level H Lessons 45, 46, and 47 are some of my most favorite lessons. They…
My two youngest children were six and eight when I started schooling them together in RightStart™…
One of the many aspects that drew me to RightStart™ Math was the idea of…