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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Past Secondary Teacher Features

### Starting the Year with Rich Tasks

### Matrices

### Visualising Quadrilaterals

### STEP on Up

### Trigonometry Feature

### Christmas Conundrums 2022

### Place Value Challenges

### A Quartet of Tetrahedra

### Playing with Mathematical Sudokus

### Starting the Term with Rich Tasks

### Symmetry, Substitutions and Surprises

### Efficient and Elegant Algebra

### Logically Speaking

### Circular Logic

### Proof for All (st)ages

### Climate Change, Carbon Footprints and Maths

### Networks and Graph Theory

### Planning Strategically

### Properties of Numbers

### Modular Arithmetic

### Some Problems in Number Theory

### Numerical Explorations

### Exploring Graphs

### Curve Sketching Feature

### Chance and Probability

### Nurturing Successful Mathematicians

### Flexible Approaches to Problem Solving

### Representing and Comparing Quantities

### Visualising with Cuisenaire

### Low Threshold High Ceiling Tasks for Secondary Classrooms

### From Exploration to Explanation

### Understanding Inverse Relationships

### Evaluating Methods, Improving Solutions

### Multiple Representations

### Introducing Mathematical Sudokus

### Resilience and the Growth Zone

### Mathematical Etudes and Purposeful Practice

### Play, Persevere, Succeed

### Areas of Interest

### Featuring Our Short Problems

### Seeing Is Believing

### Freedom and Constraints

### Number Patterns and Infinity

### Teaching Probability - Episteme Resources

### Introducing CMEP

### Enriching the Secondary Curriculum

### Freedom and Constraints in the Classroom

### Dotty Grids - an Opportunity for Classroom Exploration

### Statistical Investigations

### Place Value and Powers

### Working with Directed Numbers

### Introducing Complex Numbers

### Working with Mental Images

### From Area Into Integration

### Teaching to Reason with Numbers

### Teaching Geometrical Reasoning

### Data and Statistics

### Exceptional Mathematics - a Research Project

### Patterns in Number Sequences

### Developing Systematic Approaches

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Age 11 to 16

These tasks, chosen from our 2023 summer challenges, are particularly suitable for the start of the school year, when you are getting to know your students.

Age 14 to 18

Are you ready to enter the matrix? In this feature you will discover how matrices can be multiplied, explore how they can be used to represent transformations, use them to model probability problems and explore four dimensional numbers.

Age 11 to 16

The problems and games in this feature will challenge students to visualise quadrilaterials and may help them gain a better understanding of their properties.

Age 14 to 18

In this feature there are 4 problems based on STEP questions, all of which involve number theory.

Age 14 to 18

In this feature we are exploring and proving some results about tetrahedrons.

Age 14 to 18

In this feature we are presenting problems with a festive twist.

Age 11 to 16

These tasks offer an engaging way for students to deepen their understanding of place value.

Age 14 to 18

In this feature we are exploring and proving some results about tetrahedrons.

Age 11 to 16

In this feature, we challenge you to solve our Mathdokus, a mathematical variation of the well-known Sudoku

Age 11 to 16

These tasks, chosen from our 2022 summer challenges, are particularly suitable for the start of term, when you are getting to know your students.

Age 14 to 18

In this feature you will be challenged to derive elegant and efficient solutions to problems which, at first sight, might seem very difficult.

Age 11 to 18

We hope that students working on these problems will enjoy discovering that algebra can be a versatile tool for solving a range of problems.

Age 11 to 18

Students are invited to explore a variety of problems and are then challenged to construct convincing arguments to explain what they have discovered.

Age 11 to 18

These problems offer students the chance to investigate geometrical properties, make conjectures and create convincing mathematical proofs.

Age 11 to 18

The problems in this feature offer students the chance to identify number patterns, make conjectures and create convincing mathematical proofs.

Age 11 to 18

The problems in this feature will encourage students to explore the impact that lifestyle choices have on the environment.

Age 11 to 18

Challenge Level

This feature introduces students to the world of networks and graph theory and their applications.

Age 11 to 18

The activities in this feature offer a variety of playful contexts in which students are required to plan ahead and analyse the outcomes.

Age 11 to 16

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

Age 16 to 18

Enter the world of modular arithmetic and discover the secrets of public key cryptography.

Age 14 to 18

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

Age 11 to 16

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.

Age 11 to 16

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

Age 16 to 18

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

Age 11 to 16

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 16

Challenge Level

How do we write numbers in different forms?

Age 11 to 16

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

Encouraging students to reflect on their own and others' solutions

Age 11 to 18

Challenge Level

Using different representations helps students to think mathematically.

Age 11 to 16

In this feature, we introduce our Mathdokus, a mathematical variation of the well-known Sudoku

Age 14 to 18

Challenge Level

Advice and problems to help your students become more resilient.

Age 11 to 18

Challenge Level

Developing fluency, provoking reasoning.

Age 11 to 16

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 16

Challenge Level

Short problems ideal for revision and assessment

Age 11 to 16

Challenge Level

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

Age 11 to 16

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

Age 11 to 16

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

Age 11 to 16

Challenge Level

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

Age 16 to 18

A selection of resources from the Cambridge Mathematics Education Project

Age 11 to 16

Challenge Level

Using NRICH tasks to enrich your students' mathematical experience

Challenge your students to push the boundaries!

Age 11 to 18

Challenge Level

What maths can your students discover on dotty grids?

Age 11 to 18

Challenge Level

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

Age 11 to 18

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

Age 11 to 14

Challenge Level

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

Age 16 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

These classroom resources aim to help students reason with numbers.

Age 11 to 18

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

Age 11 to 18

Challenge Level

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

Age 11 to 18

Challenge Level

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

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

Age 11 to 14

Challenge Level

Teacher resources on working systematically at secondary level