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### Number and algebra

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# Bottles (1)

## Bottles (1)

You need to find a collection of jars and bottles of different sizes and shapes, like those in the picture below:

I wonder which holds the most/least liquid?

Use estimation first of all.

How could you find out? Explore!

Can you find a way of counting how many "small container-fulls" each will hold?

Can you find a better way?

### Why do this problem?

This problem is useful for young pupils to start considering capacity. It will encourage discussion between pupils and between pupil and teacher.

### Possible approach

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Age 5 to 7

Challenge Level

- Problem
- Getting Started
- Teachers' Resources

You need to find a collection of jars and bottles of different sizes and shapes, like those in the picture below:

I wonder which holds the most/least liquid?

Use estimation first of all.

How could you find out? Explore!

Can you find a way of counting how many "small container-fulls" each will hold?

Can you find a better way?

Photograph Acknowledgement

http://www.jarsandbottles.co.uk/

http://www.jarsandbottles.co.uk/

Although some discussion could be had by looking at the bottles pictured here, it would be good for the pupils to have a variety of bottles/jars for them to talk about and to explore the capacities practically.

Teachers could give the pupils a long time to both discuss their opinions of how the capacities compare and then how they could explore the capacities further. When it comes to finding a "small container", give them opportunities to try out the different suggestions they have.

### Key questions

Tell me about your ideas.

### Possible extension

Bottles (2) is a good follow-up to this activity.

### Possible support

Some pupils made need assistance with any awkward pouring.

Teachers could give the pupils a long time to both discuss their opinions of how the capacities compare and then how they could explore the capacities further. When it comes to finding a "small container", give them opportunities to try out the different suggestions they have.

Why do you think this will be the largest/smallest?

Why have you chosen this "small container"?

Why have you chosen this "small container"?