Having tackled the activities which are designed to improve group-working skills, why not encourage children to put their skills to good use in other mathematical contexts?  Although almost any NRICH activity could be tackled in a group, these upper primary activities have been created specifically with group work in mind.

### It's a Fence!

##### Age 5 to 11Challenge Level

In this challenge, you will work in a group to investigate circular fences enclosing trees that are planted in square or triangular arrangements.

### Sorting the Numbers

##### Age 5 to 11Challenge Level

Complete these two jigsaws then put one on top of the other. What happens when you add the 'touching' numbers? What happens when you change the position of the jigsaws?

### Fingers and Hands

##### Age 7 to 11Challenge Level

How would you count the number of fingers in these pictures?

### Sort Them Out (2)

##### Age 7 to 11Challenge Level

Can you each work out the number on your card? What do you notice? How could you sort the cards?

### How Do You Do It?

##### Age 7 to 11Challenge Level

This group activity will encourage you to share calculation strategies and to think about which strategy might be the most efficient.

### Planning a School Trip

##### Age 7 to 11Challenge Level

You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.

### Two Clocks

##### Age 7 to 11Challenge Level

These clocks have only one hand, but can you work out what time they are showing from the information?

### Counting Cogs

##### Age 7 to 14Challenge Level

Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?