# Past Features

### Play, Persevere, Succeed

##### Stage: 3 and 4 Challenge Level:

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

### Areas of Interest

##### Stage: 3, 4 and 5 Challenge Level:

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

##### Stage: 3, 4 and 5 Challenge Level:

Who said teaching algebra had to be dull?

### Featuring Our Short Problems

##### Stage: 3 and 4 Challenge Level:

Short problems ideal for revision and assessment

### Hidden Treasures

##### Stage: 3 and 4 Challenge Level:

Try these treasures to celebrate NRICH's 20th birthday

### Angles and Polygons

##### Stage: 3 and 4 Challenge Level:

Students can discover angle relationships

### Maths for Champions

##### Stage: 3 and 4 Challenge Level:

Can you win the Maths Olympics?

### Exploring Our Number System

##### Stage: 3 and 4 Challenge Level:

Simple starting points in Number Theory

### Seeing Is Believing

##### Stage: 3 and 4 Challenge Level:

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

### Underground Mathematics

##### Stage: 5 Challenge Level:

Check out the new Underground Maths website

### Freedom and Constraints

##### Stage: 3 and 4

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

### Number Patterns and Infinity

##### Stage: 3 and 4

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

### Probability - It's Deadly Serious!

##### Stage: 3, 4 and 5 Challenge Level:

Getting probability right matters!

### Teaching Probability - Episteme Resources

##### Stage: 3 and 4 Challenge Level:

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

### Introducing CMEP

##### Stage: 5

A selection of resources from the Cambridge Mathematics Education Project

### Freedom and Constraints in the Classroom

##### Challenge Level:

Challenge your students to push the boundaries!

### Dotty Grids - an Opportunity for Classroom Exploration

##### Stage: 3, 4 and 5 Challenge Level:

What maths can your students discover on dotty grids?

### Statistical Investigations

##### Stage: 3, 4 and 5 Challenge Level:

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

### Place Value and Powers

##### Stage: 3, 4 and 5

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

### Working with Directed Numbers

##### Stage: 3 Challenge Level:

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

### Great Expectations

##### Stage: 3 and 4 Challenge Level:

Learning about Probability through problem solving

### Introducing Complex Numbers

##### Stage: 5 Challenge Level:

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

### Working with Mental Images

##### Stage: 3, 4 and 5 Challenge Level:

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

### From Area Into Integration

##### Stage: 3, 4 and 5 Challenge Level:

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

### Teaching to Reason with Numbers

##### Stage: 3, 4 and 5 Challenge Level:

These classroom resources aim to help students reason with numbers.

### Teaching Geometrical Reasoning

##### Stage: 3, 4 and 5

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

### Data and Statistics

##### Stage: 3, 4 and 5 Challenge Level:

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