List

Live Problems - Stage 4 & 5

Each time you visit the NRICH site there will be some activities which are 'live'. That means we are inviting you to send us your solutions and we will publish a selection of them, along with your name and your school's name. If you'd like to know more about what we're looking for, read this short article.

The last day for submitting solutions to these live problems is Monday 27 November.

Quadratic Patterns
problem
Favourite

Quadratic Patterns

Age
14 to 16
Challenge level
filled star empty star empty star

Surprising numerical patterns can be explained using algebra and diagrams...