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Convergence articles

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Videotape of aspects of the history of mathematics.
The beginnings of land measurement in the early United States and how this affected American democracy.
Determine a number having remainders 2, 3, 2 when divided by 3, 5, 7 respectively.
A ladder is placed perpendicular to the plane of the horizon, and in coincidence with the plane of an upright wall.
An English translation of Eratosthenes' Geography, which includes "On the Measurement of the Earth."
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?
Classrom suggestions for integrating Leonardo's ideas in several different classes
The history of apportionment of representatives in the U.S. Congress, from the 1790s until today, along with a discussion of the mathematics involved in the various methods.
Two men starting from the same point begin walking in different directions. Their rates of travel are in the ratio 7:3.
Determine by using algebra the number of degrees in the angle A where: cos A = tan A