• O’Beirne Puzzle

    by  • October 9, 2013 • Math • 0 Comments

    I was on Twitter one night recently (that never happens) and someone replied to one of my tweets, encouraging me to look at Richard Thiessen’s posts at aimsedu.org. So, I did. What caught my eye, and my imagination, was the O’Beirne Puzzle. So cool!

    Last night, I made my own, with my amazing husband’s help. Then I made a (less cheesy than usual) video. Enjoy!



    After teaching for 14 years, I now design curriculum and create digital and print instructional materials for high school and middle school math. I have also invented and am now marketing radian-scale protractors. Check out www.proradian.net! I'm very happily married and have 2 grown sons and a cat named Louie.

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