Number adding triangle

There are a lot of challenges you can set with this simple structure and set of rules. The basic rules are: Each number must be the sum of the 2 numbers below it You can…

Skyscrapers Challenge

This is a challenge that has a few elements. First of all there is the solving the puzzle. You start with a grid like this. To play, you need towers at 3 different heights, let’s…

MineCraft – Journey to the Origin

in 1864 Jules Verne published A Journey to the Centre of the Earth which popularised fiction about travelling to the centre of the earth. In reality, you would get a very small proportion of the…

Paper Prisms

Often the way we see shapes hides the important aspects of their properties from us. To get to know shapes and thus spatial relationships, one of the best ways is to make them. This starts…