It is important that kids realize we read for lots of reasons - and one of those reasons is to learn something new! Use picture books to introduce your little ones to concepts such as counting. It brings together the joy of reading with the joy of learning. Don't worry if they don't "get it" the first time through! Just have fun learning together.
This is a poster dealing with place value. I would use this in my classroom to hang in the classroom so children could refer back to it while working on expanded form and place value.
The whole book online !! This is a fabulous resource for creating and managing math stations in the classroom!!!