The Ohio Section Short Course will consider the use of original sources in teaching mathematics.

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The Ohio Section Short Course will consider the use of original sources in teaching mathematics.

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.

A wooden beam is stood vertically against a wall. The length of the beam is 30 units.

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?

Given a door and a measuring rod of unknown dimensions, the rod is used to measure the door.

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.

Find two number with sum 20 and when squared their sum is 208.

If an equilateral triangle whose area is equal to 10,000 square feet be surrounded by a walk of uniform width, and equal to the area of the inscribed circle, what is the width of the walk?

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

A fish sees a heron looking at him from across a pool, so he quickly swims towards the south. When he reaches the south side of the pool, he has the unwelcome surprise of meeting the heron.