I was recently asked to bring a cake to a reception on very short notice. Luckily, I found this recipe for Olive Oil Cake by Marcella Hazan, for which I had all the ingredients. I had two small lemons left in the fridge, and I conveniently assumed that the zest of both of them will be equivalent to the “zest…

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## Is Geometry the Unsung Hero of Mathematics Instruction?

“Geometry will draw the soul toward truth and create the spirit of philosophy.”—Plato. There is a widening gap between the effective teaching of geometry in elementary schools and the geometry skills students need in high school. Often, geometry tasks at the younger grades are limited to identifying shapes or labeling properties; in high school, students…

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## Geometiles at the Julia Robinson Mathematics Festival

Last week the first ever Julia Robinson Mathematics Festival was held in San Diego. What a great event celebrating the joy of math in a non-competitive atmosphere. About 70 students, mostly from grades 6-8, were in attendance. My favorite part was watching kids be comfortable enough to admit what they don’t remember, and figure it…

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## 3 common classroom challenges and suggestions for handling them

If you are going to coach a math club, it is likely that you will come across at least some of the following challenges: A classroom full of students at different levels, despite the fact that most students in the math club self-selected to be there Creating an atmosphere where students feel emotionally safe enough to participate…

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