Over the last year, I've been involved in the design and implementation of an education project aimed at introducing physics, particle physics and CERN to K-6 students. The project, entitled "Playing with Protons", was initiated by Tina Nantsou, a physics teacher at Hill Memorial School, the oldest operating elementary school in Greece.
The one-year project has been documented in a video that I'd like to share with the Edutopia community. The video and an associated article have been published at the "Students & Educators" section of the CERN website: http://home.web.cern.ch/students-educators/updates/2014/12/cern-inspires-primary-school-students-play-protons
I'd be very interested in your comments, suggestions and experiences!