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

How do we write numbers in different forms?

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

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

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

Encouraging students to reflect on their own and others' solutions

Using different representations helps students to think mathematically.

Resources that make use of digital manipulatives

Encourage your students to venture into new territory.

Advice and problems to help your students become more resilient.

Developing fluency, provoking reasoning.

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

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

Short problems ideal for revision and assessment

Try these treasures to celebrate NRICH's 20th birthday

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.

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

A selection of resources from the Cambridge Mathematics Education Project

Using NRICH tasks to enrich your students' mathematical experience

Challenge your students to push the boundaries!

What maths can your students discover on dotty grids?

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.

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

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

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

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

These classroom resources aim to help students reason with numbers.

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

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

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

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

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.