We have a growing number of Year 4 resources on measurement. Of course, children today grow up learning about metric measurements and the key standard units they need to know include:
1 kilometre = 1 000 metres
1 metre = 100 centimetres
1 centimetre = 10 millimetres
1 kilogram equals 1 000 grams
1 litre = 1 000 millilitres
Our measurement worksheets reflect this and include some great ideas on practical measuring using grams, kilograms etc.
We also have a couple of pages on measuring time; these look at days and months of the year.