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Posts tagged with glen whitney

Math Fun in the Urban Jungle – A Tale of More than Two Cities

November18

Glen Whitney stands at a point on the surface of the Earth, north latitude 40.742087, west longitude 73.988242, which is near the center of Madison Square Park, in New York City. Behind him is the city’s newest museum, the Museum of Mathematics, which Whitney, a former Wall Street trader, founded and now runs as executive […]

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MoMath founder, on math’s image problem…

August6

Glen Whitney, founder of MoMath, makes interesting comments on the image issue common in Mathematics education today (article source from Smartplanet); And you’re the only math museum in North America. That’s correct. Sounds like Germany really likes math. Well, there’s a very distinguished history of mathematics there. It’s likely that the museums are a reflection of the […]

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10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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