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Convergence articles

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I was employed to survey a field, which I was told was an exact geometrical square, but by reason of a river running through it, I can only obtain partial measurements.
A collection of articles dealing with mathematical models and objects and how they can be used in teaching.
Poster picturing five famous women, from Hypatia to Grace Hopper.
A ladder is placed perpendicular to the plane of the horizon, and in coincidence with the plane of an upright wall.
Now there are six-headed four-legged animals and four-headed two-legged birds placed together.
Why should we use historical problems in today's classroom? This article answers that question and serves as an introduction to the problems on this website.
Greek ladders for approximating square roots may be more ancient than the ancient Greeks. Students at any level can appreciate their beauty and simplicity. Those who have studied calculus can compare them with Newton's Method for approximating roots.
A teacher agreed to teach 9 months for $562.50 and his board. At the end of the term, on account of two months absence caused by sickness, he received only $409.50. What was his board worth per month?
The eleventh International Congress on Mathematical Education will meet in Monterrey, Mexico from July 6 to July 13, 2008.
A wonderful survey of the history of mathematics, emphasizing its relationship with the ambient culture.