We have a great range of worksheets covering measurement in Year 3.

Children are expected to know certain facts, including:

• 1 kilometre = 1,000 metres
• 1 metre = 100 centimetres
• 1 kilogram = 1,000 grams
• 1 litre = 1,000 millilitres

They are also expected to recognise half units, such as half a kilometre and that this can be written as 0.5 km or 500 m.

One of the most useful benefits of the metric system, that can be pointed out to children, is the relationship between the units. For example:

a litre of water can be contained in a 10 cm cube (1,000 cubic cm) and has a mass of 1 kg. Hence a 1 cm cube of water has a mass of 1 gram and is known as 1 ml.

It is an excellent idea to have a collection of pots, cartons etc which show the capacity and wrappers which show weight. These can be grouped in various ways and comparisons made.

Choosing the correct unit to measure is important and practice can be given orally on these questions - hold up a pot and ask what you would measure the capacity in, as part of the daily mental arithmetic.

In Year 3 children measure and draw lines to the nearest half centimetre. It is important that they have rulers which include millimetres and that they understand that 0.5 is the same as a half.

Reading scales is developed to include reading measurements where there are sub-divisions that are not labelled. Children need to be confident in reading a wide variety of scales which include all labels before going on to these sub-divisions.

Once again this type of work is better done on a practical basis using length, mass and capacity.

Our worksheets clearly show the progress that needs to be made between Year 2 and Year 3. We have an excellent collection of work covering all aspects of measurement in Year 3. Why not have a look now?