Since it is my sister's birthday today and she is going to be a future elementary educator. I have decided to dedicate this post to elementary teachers who are looking for materials or resources for elementary math.
Mathlanding is a resource and tools for elementary math specialists and teachers. You can search by math topic and grade level. You can find goodies for the classroom and professional development. A team of math experts review and evaluate all resources and populate the site with thousands of engaging, high quality lessons, interactive games, activities, videos, and articles.
The professional development is the perfect platform to enhance the skills and knowledge of elementary math teachers. http://www.mathlanding.org/
Another awesome page that includes math coloring pages is: http://www.coloringprintables.net/math-coloring-pages.html
Another great site is Mrs. Hughes' Place for numeracy teaching notes that has posters and handouts and the link can be found here: http://billsteachingnotes.wikispaces.com/Numeracy+Teaching+Notes