Today I asked the children to measure the key features of their maps. They worked in trios using trundle wheels and metre sticks. It quickly became apparent that too many children were messing around so I changed tack and we all measured the same thing at the same time, compared measurements and decided on an average. The children took it in turns to use the equipment and most children were involved. I took note of the average measurements and will transfer them onto a plan ready for the children to use to make maps. Next time I need to take many more trundle wheels.