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Chocolate

There are three tables in a room with blocks of chocolate on each. Where would be the best place for each child in the class to sit if they came in one at a time?

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Plants

Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?

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Gran, How Old Are You?

When Charlie asked his grandmother how old she is, he didn't get a straightforward reply! Can you work out how old she is?

Ip Dip

Stage: 1 and 2 Challenge Level: Challenge Level:1

"Ip dip sky blue!  Who's 'it'?  It's you!"
 
Have you ever used this rhyme to decide who is 'it' in a game?
 
If you were playing a game with one friend and you wanted to be chosen to be 'it', would you start the rhyme pointing at yourself or your friend?

If there were three of you, how would you position yourself so that you were sure you'd be chosen?
 
How about with four of you?  Five ...? Six ...?  Seven ...? Eight ...? Nine ...?  Ten ...?  And so on?
 
How would you predict where you should stand to be chosen for any number of players?

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice. More information on many of our other activities can be found here.
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NRICH is part of the family of activities in the Millennium Mathematics Project.