The problems in this feature will give students the chance to investigate the properties of numbers in a variety of contexts.

Number theory is a rich source of interesting problems which can lead to surprising results.

This feature offers students some interesting problems that introduce them to number theory, where they are able to apply some standard algebraic techniques and pictorial representations.

A chance to consider the equations of straight line graphs before moving on to consider the properties of quadratics and cubics

Curve sketching can be a very useful tool when you are solving equations or inequalities.

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This feature is intended to help students understand how probability can help them make better choices.

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We share a model for reflecting on what makes a good mathematician

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The problems in this feature challenge students to explore different ways of arriving at a solution.

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How do we write numbers in different forms?

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How can Cuisenaire rods be used to develop visualising and reasoning?

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Problems designed to inspire students to explore and provoke a need to explain

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The problems in this feature encourage students to consider inverses and working backwards to solve problems.

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Encouraging students to reflect on their own and others' solutions

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Using different representations helps students to think mathematically.

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Advice and problems to help your students become more resilient.

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Developing fluency, provoking reasoning.

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Invite your students to be playful with this selection of numerical tasks.

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In this feature, we offer a selection of rich problems about area for use in all secondary classrooms.

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Short problems ideal for revision and assessment

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Some mathematical results can be proved beautifully with just a simple diagram...

There's more room to manoeuvre than you might initially imagine!

See some Number Patterns problems from Wild Maths and make your classroom more creative.

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Try a selection of problems from Cambridge University's epiSTEMe project

A selection of resources from the Cambridge Mathematics Education Project

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Using NRICH tasks to enrich your students' mathematical experience

Challenge your students to push the boundaries!

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What maths can your students discover on dotty grids?

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A chance for students to use statistical skills to answer some interesting questions.

These problems are designed to help students develop an appreciation for the importance of place value and powers.

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These tasks will support your students' understanding of positive and negative numbers.

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These resources are designed to introduce students to complex numbers in an exploratory way.

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Challenge your students to develop their visualisation skills by working on these tasks

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This collection offers resources for teaching perimeter, area, volume, and finally integration.

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These classroom resources aim to help students reason with numbers.

These classroom resources aim to help students think about geometrical reasoning.

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These problems are designed to help Stage 3, 4 and 5 students to handle data and work with statistics.

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Read about Steve Hewson's research project on exceptional mathematicians.

These problems introduce number sequences and representations, and summation of series.

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Teacher resources on working systematically at secondary level

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.

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NRICH is part of the family of activities in the Millennium Mathematics Project.

NRICH is part of the family of activities in the Millennium Mathematics Project.