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?

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

Imagine an urn with two balls, each of which may be either white or black. One of these balls is drawn and is put back before a new one is drawn.

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 bridge is built across a river in 6 months by 45 men. It is washed away by the current. Required the number of workmen sufficient to build another of twice as much worth in 4 months.

A man, woman, and two boys desire to cross a river, but their boat has weight restrictions!

The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB

How a translation of Peano's counterexample to the 'theorem' that a zero Wronskian implies linear dependence can help your differential equations students

A man went to a draper and bought a length of cloth 35 braccia long to make a suit of clothes.

Heron of Alexandria (ca 200) wrote on many aspects of applied mathematics.

Two circles, the sum of whose radii is a, are placed in the same plane with their centers at a distance 2a...