We learned that if you want to put new tiles in a room you need to now the exact mesurement. We made a square meter with newspaper. Then we went around our school measuring things like our gymnasium. After a while we couldn't use our meter so we used the tiles and we steped and thought that's about a meter. Then my group measured the leagth and then the width and our esimate was 14x20=280 but the real area was 300 m2.It was fun measuring things.