Why do this problem?
gives learners some simple data to organise. As in many cases, there is no obvious solution. It can be done practically with the interactivity or the cards, but it can also be opened up as it can be seen from the Possible extension. It could be a good introduction into the idea of sets and Venn
This sheet gives small copies of the cards (not numbered) for individual use and these sheets have two sets of much larger cards, one set
plain and the other numbered.
You might find this interactivity
useful for illustrating different solutions at the end of the lesson.
What can you tell me about this butterfly?
Which attribute are you collecting there?
How many can you find that have Curly Antenna [Round Heads/Yellow Spots/Dark Wings/Blue Spots]?
Have you found any cards that nobody wants?
Have you found any cards that all the children want?
Have you found any cards that just one child wants?
Can all the children have the cards they want?
Can you think of a fair way for them to share out the cards?
How are you going to record what you have done?
Learners could sort the cards using Venn diagrams as described on this sheet
Suggest sorting copies of the cards. These cards
are quite small, while these
are much larger and include the numbered cards.