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Convergence articles

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Thirty flasks-10 full, 10 half-empty, and 10 completely empty- are to be divided among 3 sons so that flasks and contents should be shared equally. How may this be done?
A CD with eleven modules, each containing numerous activities designed to help secondary teachers use the history of mathematics to teach mathematics.
Request from the editors.
A sketch of the history of topology, beginning with the polyhedron formula, but continuing up to the present.
Seven men held equal shares in a grinding stone 5 feet in diameter. What part of the diameter should each grind away?
How high above the earth must a person be raised that he [or she] may see 1/3 of its surface?
A popular history of ancient mathematics, dealing with the mathematics of ancient Egypt and Babylonia.
Given a rectangle, find the line through one vertex of minimum length that passes through the extensions of the two opposite sides.
Prove that the area of a regular polygon can be given by the product of its perimeter and half the radius of the inscribed circle.
A report on an Australian teacher's use of material from the Rhind Papyrus.