We made a little video of the mini unit circle with Radian piece and it got some interest on our twitter feed. We tidied up and updated the file as much as possible and have three versions available: link to SVG Mini Unit Circle File link to Adobe Illustrated Mini Unit Circle File link to Corel Draw 2017 file version
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At the Showcase you can meet Elizabeth Lay, MathHappens’ Program Manager who is developing an innovative new unit. MathHappens has obtained an original manuscript written by Texas surveyor Robert Creuzbauer that details a dual system of land measurement standards unique to Texas. The new unit will connect Texas History and Mathematics curricula addressing TEKS for both math and history.
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Click here to watch a short video featuring veteran MathHappens intern, now staff Josephine Sheng and another mystery box.
We are very excited to have a real Vara Chain! To relive the suspenseful opening of the box, check out these 1, 2, 3 riveting videos. Or just zoom in on the letter and read it : )
Math Happens… just about everywhere. This is a very old hoof gauge that we found on a trip to Sheridan, Wyoming. It looks like good luck and math mixed together. The arm of the hoof gauge moves up and down. The arrow points to the measure. A healthy angle for a horse hoof is approximately 54º. Many experienced farriers know
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Mike Bailey of the Brazoria County Historical Museum provided us this photo. He is using our model Gunner’s Quadrant with a cannon there at the Museum. We based our model on the one seen above in an article on Nicholas Tartaglia, the inventor of ballistics. https://www.famousscientists.org/niccolo-tartaglia/
Quan Vuong and Samantha Trevino have been sharing some navigation innovations that allowed La Salle and other Explorers to cross to the new world with Bullock visitors on Tuesdays from 12 -3. Today they are talking about Mercator Maps, the distortion that occurs when you project to a flat surface and also how the ships navigators used the sighting of
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Gunter chains, measurement tape, and an interactive scenario about unconventional survey methods.
Pioneer Farms is pioneering integrating math into their regular programming.
I still need to track down “authorities” to verify, but this appears to be a real handwritten letter or speech written by a Robert Creuzbauer, a Texas surveyor about the VARA and Chain standards for measuring land. It gives a very clear description of the Vara standard and how it relates, or doesn’t relate to the Chains used elsewhere and
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