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Convergence articles

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In his analysis of volumes of wine barrels, Kepler used ideas that would become important in differential and integral calculus. Use this article's animated visual imagery to help share Kepler's ideas with your students.
Circular Images
A journey through numbers from their earliest beginning in India to the proof of Fermat's Last Theorem by Wiles.
There are four winners of the HOMSIGMAA Student Paper Contest for 2008. The papers may be accessed here.
Having been given the lengths, a and b, of two straight lines drawn from the acute angles of a right triangle to the middle of the opposite sides, determine the length of those sides.
This is an invited working conference as part of the ICMI Study Series.
Historical Problems can be used to enliven any mathematics class. Here are some examples from medieval times, from a 19th century American textbook, and from a 19th century Armenian textbook, among other sources.
The story of the negative numbers
An argument that the teaching of elementary integration should better reflect its historical development
I have two fields of grain. From the first field I harvest 2/3 a bushel of grain/unit area; from the second, 1/2 bushel/unit area.