How many generations would link an evolutionist to a very distant ancestor?

Is there a relationship between the coordinates of the endpoints of a line and the number of grid squares it crosses?

Take any prime number greater than 3 , square it and subtract one. Working on the building blocks will help you to explain what is special about your results.

A napkin is folded so that a corner coincides with the midpoint of an opposite edge . Investigate the three triangles formed .

What is the same and what is different about these circle questions? What connections can you make?

Four rods are hinged at their ends to form a convex quadrilateral. Investigate the different shapes that the quadrilateral can take. Be patient this problem may be slow to load.

Make a conjecture about the sum of the squares of the odd positive integers. Can you prove it?

Sort these mathematical propositions into a series of 8 correct statements.

How would you massage the data in this Chi-squared test to both accept and reject the hypothesis?

One side of a triangle is divided into segments of length a and b by the inscribed circle, with radius r. Prove that the area is: abr(a+b)/ab-r^2

Predict future weather using the probability that tomorrow is wet given today is wet and the probability that tomorrow is wet given that today is dry.

See how graphical methods can be used to solve this rates of change problem and how this simple congfiguration leads to an equation which needs a numerical solution.

In this Sudoku, there are three coloured "islands" in the 9x9 grid. Within each "island" EVERY group of nine cells that form a 3x3 square must contain the numbers 1 through 9.