What do you think is going to happen in this video clip? Are you surprised?
Use five steps to count forwards or backwards in 1s or 10s to get to 50. What strategies did you use?
Sweets are given out to party-goers in a particular way. Investigate the total number of sweets received by people sitting in different positions.
Are these statements always true, sometimes true or never true?
The NRICH Team's beliefs about teaching mathematics, and the ideas that have inspired us.
This article offers you practical ways to investigate aspects of your classroom culture.
Square numbers can be represented as the sum of consecutive odd numbers. What is the sum of 1 + 3 + ..... + 149 + 151 + 153?
How many possible symmetrical necklaces can you find? How do you know you've found them all?
Can you find any two-digit numbers that satisfy all of these statements?
