# Exploring Our Number System

### Exploring our Number System

Simple ideas, like adding together two odds to make an even, can lead to fascinating insights with important real world applications.

In this feature, we have chosen some resources from the Exploring Our Number System pathway on wild.maths.org.

Take a look at Introducing Creativity in the Classroom to find out more about Wild Maths, and for suggestions of NRICH tasks we recommend if you want to promote creativity in your classroom.

### Introducing Creativity in the Classroom

##### Age 11 to 18 Challenge Level:
Learn all about Wild Maths and how you can support mathematical creativity in the classroom

### Charlie's Delightful Machine

##### Age 11 to 16
Play with our interactive machine and see if you can work out how to switch each light on. Is there a way to turn on all four lights at once?

### Factors and Multiples Chain

##### Age 11 to 16
Each number must be a factor or multiple of the last. What's the longest chain you can make?

### Always a Multiple?

##### Age 11 to 16
Think of a two digit number, reverse the digits, and add the numbers together. Something special happens...

### How to Solve Equations

##### Age 11 to 16
Watch this talk by Dr Vicky Neale as she explores some equations, and covers some highlights from the rich history of number theory along the way.