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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# What Shape for Two

### How do you play?

You will need an adult to play with.

You'll also need the set of shape cards.

Spread them out on the table so that you can both see the shapes.

The adult looks at the cards and secretly chooses one.

Your job is to ask questions to find out which card has been chosen.

When you think you have worked out which shape the adult has chosen, point to it.

If you're right, you could swap roles.

If you're wrong, keep going!

**Notes for adults**

This game is all about the languge of shape and postion.

**Easier version:** restrict the number of cards used. You might want to talk in advance about the sort of questions it would be helpful to ask.

**Harder version:** use the full range of cards.

At the end of the game talk about what proved to be good questions and less good questions. You could keep a note of how many questions were needed and see if you could reduce the number in subsequent games.

There's a group version of this game here.

## You may also like

### Counting Counters

### Cuisenaire Squares

### Doplication

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

Or search by topic

Age 7 to 14

Challenge Level

- Problem

Here's a game to play with an adult!

You'll also need the set of shape cards.

Spread them out on the table so that you can both see the shapes.

The adult looks at the cards and secretly chooses one.

Your job is to ask questions to find out which card has been chosen.

When you think you have worked out which shape the adult has chosen, point to it.

If you're right, you could swap roles.

If you're wrong, keep going!

This game is all about the languge of shape and postion.

At the end of the game talk about what proved to be good questions and less good questions. You could keep a note of how many questions were needed and see if you could reduce the number in subsequent games.

There's a group version of this game here.

Take a counter and surround it by a ring of other counters that MUST touch two others. How many are needed?

These squares have been made from Cuisenaire rods. Can you describe the pattern? What would the next square look like?

We can arrange dots in a similar way to the 5 on a dice and they usually sit quite well into a rectangular shape. How many altogether in this 3 by 5? What happens for other sizes?