Category Archives: math

We’ve Got Snowball Problems

Current weather in New England makes it hard to not think about snow. So here are two snowball inspired math problems. We welcome your solutions (send to girlsangle “at” gmail.com). Perhaps we’ll post solutions when the last traces of snow have … Continue reading

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Happy New Year 2015!

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Girls’ Angle Bulletin, Volume 8, Number 2

The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. After reading Stained Glass Angles in Volume 7, Number 4, Marion Walter happened upon an amazing stained glass window by John Rose at … Continue reading

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Girls’ Angle Bulletin, Volume 8, Number 1

The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. This time, we’re leaving it up to readers to guess what our latest cover represents. This past summer, Girls’ Angle program assistant … Continue reading

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Multiplication Sculptures and Sums of Cubes

Take a multiplication table and build a column of cubes over each entry. For each column, use as many cubes as the product it sits upon. The result is a “multiplication sculpture” or “multiplication tower.” The picture shows a 15 by … Continue reading

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Girls’ Angle Bulletin, Volume 7, Number 6

The electronic version of the latest issue of the Girls’ Angle Bulletin is now available on our website. The cover illustrates a neat result that Anna B. discovered and explains in this issue’s Anna’s Math Journal. She continued her investigation of … Continue reading

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Marion Walter’s Theorem Via Mass Points

I recently had the good fortune of learning Marion Walter’s theorem from Marion Walter herself: Marion Walter’s Theorem: In a triangle, draw line segments from each vertex to the trisection points on the opposite side. The six drawn line segments … Continue reading

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