Search
problem
Climbing Conundrum
7 to 14
Five children are taking part in a climbing competition with three parts, where their score for each part will be multiplied together. Can you see how the leaderboard will change depending on what happens in the final climb of the competition?
problem
Counting Stick Conjectures
5 to 11
How many rectangles can you see? Are they all the same size? Can you predict how many rectangles there will be in counting sticks of different lengths?
article
Teachers using NRICH 1
Peter Hall was one of four NRICH Teacher Fellows who worked on embedding NRICH materials into their teaching. In this article, he writes about his experiences of working with students at Key Stage Three.
page
Felixstowe schools mathematics transition project
Resources to accompany NRICH's workshops with Primary and Secondary teachers involved in the Felixstowe Transition Project, which began in September 2017.
problem
Favourite
Fair Feast
5 to 11
Here is a picnic that Petros and Michael are going to share equally. Can you tell us what each of them will have?
problem
Favourite
Symmetry Challenge
7 to 11
How many symmetric designs can you make on this grid? Can you find them all?
problem
Favourite
Nine-pin Triangles
7 to 11
How many different triangles can you make on a circular pegboard that has nine pegs?
problem
Favourite
Stringy Quads
7 to 11
This practical problem challenges you to make quadrilaterals with a loop of string. You'll need some friends to help!
problem
Favourite
Time to Evolve 2
16 to 18
How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?