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After completing this assignment on Simon Stevin's treatment of decimal fractions in his 1585 De Thiende, the author's preservice mathematics teachers understood why our usual procedure for multiplying such fractions works.
Two persons sat down to play for a certain sum of money; and agree that the first who gets three games shall be the winner. After a few games they resolve to divide the stakes. How much should each person receive?
The Ohio Section Short Course will consider the use of original sources in teaching mathematics.
A certain gentleman ordered that 90 measures of grain were to be transported from his house to another, 30 leucas distant.
Given two circles tangent to each other and to a common line, determine a relationship between the radii and the distance between the tangent points.
A wooden beam is stood vertically against a wall. The length of the beam is 30 units.
There are two columns in the ruins of Persepolis left standing upright; one is 70 ft. above the plane, and the other 50 ft;
A two door gate of unknown width is opened so that a 2 inch gap exists between the two doors.
The movie Agora, about the mathematician Hypatia of Alexandria (c. 400 AD), is spectacular and intriguing but Hypatia should be portrayed as the hero she was.
There is a round fish pond of certain dimensions, and into the pond is dropped a marble column. How high will the water rise?

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