We are using Math-U-See Primer for our Math curriculum. One of the suggestions was to make a poster type Decimal Street. Unfortunately This can take up quite a bit of space and makes it awkward to work with.
Then I can upon this Decimal street lap book. So I converted our poster to a Lapbook.
We use Three little cars that I laminated to write the numbers on.
Folded up and ready to close, the laminated cars are kept together using a paper clip attached to the side of the folder.