A collection of important articles and ideas.

New Problem String Videos!


Hey fellow mathematicians!

Many of you will be happy to know that what you have been asking for is now available - video of teachers in REAL classrooms with REAL students. We provide these to you for free, but...

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What Are Problem Strings?

What is a Problem String?

A Problem String is a powerful teaching tool based on the idea that learning mathematics is about constructing relationships and connections. It’s not the only thing that could...

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