The Egyptians expressed all fractions as the sum of different unit fractions. The Greedy Algorithm might provide us with an efficient way of doing this.
The farmers want to redraw their field boundary but keep the area the same. Can you advise them?
Charlie has moved between countries and the average income of both has increased. How can this be so?
Explore when it is possible to construct a circle which just touches all four sides of a quadrilateral.
A napkin is folded so that a corner coincides with the midpoint of an opposite edge. Investigate the three triangles formed.
Imagine a very strange bank account where you are only allowed to do two things...
