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In a square box that contains 1000 marbles, how many will it take to reach across the bottom of the box in a straight row?
A survey of over two thousand years of the history of mathematics on the Indian subcontinent.
What will the diameter of a sphere be, when its volume and surface area are expressed by the same number?
A fellow said that when he counted his nuts by twos, threes, fours, fives and sixes, there was still one left over; but when he counted them by sevens they came out even. How many did he have?
Given a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes.
This is an invited working conference as part of the ICMI Study Series.
The author takes us on a historical tour of mathematics through postage stamps of the world that display mathematicians and mathematics.

In this collection of essays on modern trends and issues in the history of mathematics, consideration of mathematics history in the classroom is often more theoretical than practical.

The latest HPM Newsletter is now available here. Read it!
A farmer sold a team of horses for $440, but did not receive his pay for them until 1 yr, 8 mo after the sale. He had at the same time another offer of $410 for them. Did he gain or lose by the sale and by how much, money being worth 6%/yr?