We took advantage of the lovely weather to get outside for more measuring. We have done lots of work with non standard measures and we have chatted about the issues with using them. We came to the conclusion that having a way of measuring that was always the same and that people all over the world would understand would be better, especially when it comes to building important things like houses, roads and bridges. We then went out and about using metre sticks, estimating and measuring. There was some super maths on the go with some people using repeated addition to work out the length of a square in the playground or of the wooden raised beds. We have some excellent engineers in the making!