101 – exploding dots

I first learned of this wonderful set of lessons from James Tanton called “Exploding Dots” at the Math Teachers’ Circle (MTC) training in Palo Alto last summer. Since then, we have presented the lesson at our own MTC in Thousand Oaks.

My 6th graders love this lesson! We are breaking it into chunks. Right now, we’re working with base 2 and base 3 numbers.


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