Sets of integers like 3, 4, 5 are called Pythagorean Triples, because they could be the lengths of the sides of a right-angled triangle. Can you find any more?
Which numbers can we write as a sum of square numbers?
How would you judge a competition to draw a freehand square?
A weekly challenge concerning prime numbers.
A function pyramid is a structure where each entry in the pyramid is determined by the two entries below it. Can you figure out how the pyramid is generated?
A weekly challenge concerning the interpretation of an algorithm to determine the day on which you were born.
A selection of intriguing questions to consider on mechanics, particularly surrounding the ideas concerning impulse and momentum.
Can you massage the parameters of these curves to make them match as closely as possible?
Can you find the differential equations giving rise to these famous solutions?
Explore the issues surrounding the concept of Phase Space.
Josh clearly explained how to calculate the radius of a running
track and the position of the staggered starts for the 200m and
Go to last month's problems to see more solutions.
Here we look back at the year with NRICH and suggest mathematical summer holiday activities for students, parents and teachers.