Over the past few weeks, Year 4 have been exploring length and learning how to convert different units of measure. Today Class 4MN were converting metres to kilometres and kilometres to metres. In order to find out just how large a kilometre was compared to a metre, we went for a kilometre walk. We carefully measured the distance with a trundle wheel and using GPS. Ask us to tell you how long a millimetre, centimetre, metre and kilometre are and how to convert one to the other.