What shapes should Elly cut out to make a witch's hat? How can she make a taller hat?
In a three-dimensional version of noughts and crosses, how many winning lines can you make?
Moiré patterns are intriguing interference patterns. Create your own beautiful examples using LOGO!
Can you make sense of the three methods to work out the area of the kite in the square?
Look for the common features in these graphs. Which graphs belong together?
Explore the properties of these two fascinating functions using trigonometry as a guide.
A collection of problems related to the mathematics of fundamental physics.
Given a set of points (x,y) with distinct x values, find a polynomial that goes through all of them, then prove some results about the existence and uniqueness of these polynomials.
The cipher challenge from the February month has now been solved fully. Read the solutions to the 7 ciphers here.
Go to last month's problems to see more solutions.
We need computer programmers! Logo is a great entry-level programming language - and you can create stunning graphics while you learn.
A introduction to how patterns can be deceiving, and what is and is not a proof.
This is our collection of favourite mathematics and sport materials.
Play a more cerebral countdown using complex numbers.