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Read more →Note: This is a re-post from 2013, dedicated to Dr. Golden’s students! Liu Hui was a 3rd century Chinese mathematician. I first stumbled upon him when I saw puzzles based on dissection proofs of the Pythagorean Theorem (Shang Gao Theorem (商高定理)) at ICME11 in 2004. Recently I’ve been exploring the trisection of a...
Read more →I just read my last post – from more than a year ago! Clearly, I’ve been busy, and I’m not done with my work at Discovery Education. Thankfully, Patrick keeps finding new things for me to do. I spent some time last fall as a technical editor for Coach and Practice problems; that was interesting because I...
Read more →My consulting work at Discovery Education is concluding, so I’m looking for a new creative endeavor in secondary math to which I can contribute. My main interest is in lesson design, with a focus on open-source technology integration. I like to work in a collegial atmosphere, but to do so remotely. I’ve seen that this can be...
Read more →I had a really good day at the Ten Counties Math Association Conference in New York State. My table was at the end of a hallway with reps from TI, Houghton-Mifflin, and Casio. People who asked about the ProRadian Protractor company were surprised to hear that I am the whole company! (OK, full disclosure:...
Read more →So, it’s 3:30 am, and I am wide awake in a hotel room, awaiting my now-redundant 5:15 wake-up call. I am filled with nervous energy because today I am exhibiting my ProRadian Protractors for the first time at a math conference. I’ve done several workshop presentations, the first of which had 96 attendees, but this...
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