While browsing the web for some innovative and informative resources, I came across a blog called Kindergarten Smarts! This blog is managed by Sarah Casady, a Kindergarten teacher.
In particular, I was drawn to this post about 5 different ways of building number sense in the classroom. Here Sarah discusses a variety of ways that you can incorporate number sense into the classroom, with plenty of detail! The post is a bit lengthy, but is worth the read. This is also a good read for parents, as they can use these resources at home!