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A horse halving its speed every day runs 700 miles in 7 days.

Nine examples of using history in the mathematics classroom -- for those who read French!

Knowing the base, b, and the altitude, a, of a triangle. Find the expression for a side of the inscribed square.
A collection of original texts to help students learn some important areas of mathematics.
Website containing much information on mathematical symbolism and terminology, as well as portraits of mathematicians from postage stamps.
A merchant woman buys and sells apples and pears for Denaros. How much did she invest in apples; how much in pears?
Two ants are 100 paces apart, crawling back and forth along the same path. The first goes 1/3 pace forward a day and returns 1/4 pace; the other goes forward 1/5 pace and returns 1/6 pace. How many days before the first ant overtakes the second?
A thorough study of Benjamin Franklin's mathematical accomplishments, in particular his work on magic squares.
Now there are six-headed four-legged animals and four-headed two-legged birds placed together.
Page 6: Images from the Paul Halmos Photo Collection of Abram Besicovitch, R. H. Bing, Burton W. Jones, Garrett Birkhoff, Abolghassem Ghaffari, Errett Bishop, and Max Black