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'Thirsty?' printed from http://nrich.maths.org/
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'
You will need to print off these eight
, which have pictures of glasses of orange and
blackcurrant juice on them. You need one set of these cards for
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
Now you are ready for the challenge. You will need to print off this set of 'clue
. 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
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