During CreaTHINK , I happened upon this work. The children were working with numbers 1-20, and beyond. The children chose an area of interest and integrated numbers into their play.
As I stopped by the nature area and had a conversation with one child working there, I was informed that he was making number soup. You can see in these photos, he had a couple of measuring tools – a tape measure and a yardstick. He was using the numbers on the measuring tools as guides to writing numbers.