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Year 2 Measurements - Length and Height
Very long distances, like the distance from the Moon to Earth, are measured in kilometres.

Year 2 Measurements - Length and Height

Measure like a pro! Learn to compare length and height, choose metres or centimetres, and make smart estimates before you measure for real.

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(quiz starts below)

Fascinating Fact:

Metres and centimetres. 1 m = 100 cm. The hall might be 12 m. Your book might be 20 cm.

In KS1 Maths, pupils compare length and height, estimate before measuring, and choose sensible units. We use rulers and metre sticks to read centimetres (cm) and metres (m) accurately.

  • Length: How long something is from end to end.
  • Height: How tall something is from bottom to top.
  • Unit (m or cm): The label we measure with, like metres (m) or centimetres (cm).

Try a quick practice: Numeracy Game – speedy challenges that include measures and real-life problems.

What is the difference between length and height?

Length is how long something is across, like a table. Height is how tall something is, like a door from floor to top.

Should I use centimetres or metres in Year 2?

Use centimetres for small objects (pencil, book) and metres for bigger things (classroom wall, corridor, playground distance).

How do you estimate length in KS1?

Look first and make a sensible guess, then measure with a ruler or metre stick to check. Estimating helps you choose the right unit.

To see a larger image, click on the picture.
Question 1
How long might this bus be?
80cm
80m
8cm
8m
1 metre is the same as 100 centimetres
Question 2
How long might an acorn be?
3cm
3m
30cm
300m
The shortest measurement is the most appropriate one here
Question 3
What could the length of this gym be?
2m
25cm
25m
200m
Some huge sports hall can be even longer than this
Question 4
How long could a coloured pencil be?
12m
22cm
220cm
22m
We use centimetres to measure shorter objects
Question 5
How long might this goldfish be?
100cm
10cm
1cm
1m
The goldfish couldn't really be any of the other lengths
Question 6
How long could this worm be?
120m
12m
12cm
120cm
The other answers are much too long for the length of the worm
Question 7
How long might a paperclip be?
20m
2m
20cm
2cm
A paperclip is only a couple of centimetres long
Question 8
How tall could this tree be?
15m
500m
5cm
5mm
Although it's a very tall tree, it couldn't be 500m tall!
Question 9
Which unit of measurement is used for long distances?
Kilometres
Metres
Centimetres
Millimetres
Sometimes we also talk about miles
Question 10
How tall might this building be?
7m
700m
70cm
7cm
Tall buildings are usually hundreds of metres tall
You can find more about this topic by visiting BBC Bitesize - Solving problems involving height and length

Author:  Angela Smith (Primary School Teacher & KS1 Quiz Writer)

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