### 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

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?

### Getting Better at Group Work Lower Primary

Three or four brains are usually better than one! Working on a problem in a group rather than on your own is often a good idea. These activities will help you get better at group work.

# Thirsty?

##### Stage: 1 Challenge Level:

This problem has been designed to work on in a group of about four. For more details about how you might go about doing this, please read the Teachers' Notes.

You will need to print off these eight cards, which have pictures of glasses of orange and blackcurrant juice on them. You need one set of these cards for your group.

Have a good look at the cards with everyone in your group. Talk to each other about what you notice. Can you sort the cards in different ways?

Now you are ready for the challenge. You will need to print off this set of clue cards. There are ten clue cards altogether.

Give the clue cards out to everyone in your group. Take it in turns to read your cards out loud. Listen out for instructions that tell you what to do, which are written on one or more of the cards.

Can you lay out the pictures of the drinks in the way described by the clue cards?

We would love to hear how you got on with this activity.
Perhaps you can send us a photo of your solution?
Can you tell us which clue cards helped you get started?
How did you know whether your solution was correct?

This activity is taken from Maths Buzz, collaborative reasoning challenges devised by NRICH and published by BEAM. Maths Buzz is available from the BEAM website: http://www.beam.co.uk/product_detail.php?dept_id=,34,&prod_id=336