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This website is connected to the book, The Joy of Pi. It has numerous interesting facts about pi, with links to additional sites.
Here is the title page of part I of the General Trattato di Numeri (General Treatise on Number and Measure) (1556) of Niccolo Tartaglia (1500-1557). This is an extensive work on elementary mathematics that was popular in Italy for several decades after its publication.
A CD with eleven modules, each containing numerous activities designed to help secondary teachers use the history of mathematics to teach mathematics.
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.
Four episodes in the history of geometry are discussed, where dynamic geometry helps in understanding the ideas.
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.
A horse halving its speed every day runs 700 miles in 7 days.
How high above the earth must a person be raised that he [or she] may see 1/3 of its surface?
These are the winning entries from the annual History of Mathematics SIGMAA Student Paper Contest.
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.