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!](/sites/default/files/styles/medium/public/thumbnails/content-id-6902-icon.gif?itok=fA8IJRHA)
problem
It's a fence!
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](/sites/default/files/styles/medium/public/thumbnails/content-id-6947-icon.jpg?itok=yBQMS7vp)
problem
Sorting the numbers
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?
![How do you do it?](/sites/default/files/styles/medium/public/thumbnails/content-id-6901-icon.gif?itok=DU3xchZB)
problem
How do you do it?
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](/sites/default/files/styles/medium/public/thumbnails/content-id-6969-icon.png?itok=EHfUZY3X)
problem
Planning a school trip
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.
![Fingers and Hands](/sites/default/files/styles/medium/public/thumbnails/content-id-6878-icon.gif?itok=nhFjvpiP)
![Sort them out (2)](/sites/default/files/styles/medium/public/thumbnails/content-id-6893-icon.png?itok=N_XXYuA7)
problem
Sort them out (2)
Can you each work out the number on your card? What do you notice?
How could you sort the cards?
![](/sites/default/files/styles/medium/public/2024-12/Counting%20cogs%20featured%20image.png?itok=Lk0h3wfo)
problem
Counting cogs
Which pairs of cogs let the coloured tooth touch every tooth on the other cog? Which pairs do not let this happen? Why?
![Two Clocks](/sites/default/files/styles/medium/public/thumbnails/content-id-4806-icon.png?itok=W95kmVAi)
problem
Two clocks
These clocks have only one hand, but can you work out what time they are showing from the information?