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Showing posts from February, 2011

Tributes to Escher's Relativity

the camel problem

Monday, Monday...

northwest indian art

my setup

funny little woman

dy/dx song revisited

Rotating cube

the notebook

Lifelong learning?

What is this thing?

The best math manipulative?

Valentine's Day heart graphs

Ethiopian math in context

Pimpact on student learning

How to make students love square roots