Code.org is a non-profit dedicated to expanding access to computer science, and increasing participation by women and underrepresented students of color.
125+ Million students have played with their innovative programming tools that enable elementary schools students to learn programming concepts. 152K teachers use it in their classrooms.
As an elementary school teacher you can sign up for a one day workshop in your area (US only currently).
And check out their new App lab that lets you create and share mobile apps.