This group tasks allows you to search for arithmetic progressions in the prime numbers. How many of the challenges will you discover for yourself?
Are these statistical statements sometimes, always or never true? Or it is impossible to say?
Match the charts of these functions to the charts of their integrals.
Can you make a square from these triangles?
These proofs are wrong. Can you see why?
Which of these triangular jigsaws are impossible to finish?
Can you fit polynomials through these points?
Explore the properties of some groups such as: The set of all real numbers excluding -1 together with the operation x*y = xy + x + y. Find the identity and the inverse of the element x.