Educational games and material can be found at S'Cool Lab and Quarked. PhD Comics has several illustrations on physics topics and a series called Piled Higher and Deeper on the illustrator Jorge Cham’s visit to CERN. LPPP gives a brief introduction to LHC physics. Particle Adventure is an interactive guide to fundamental concepts in high energy physics.
Teacher programmes: For teachers who are interested in learning about the frontiers of physics and science that hasn’t made it into textbooks yet, take part in CERN's Teachers Programmes, held in the summer in a variety of languages.
CERN Beamline for Schools competition - CERN offers high-school students from around the world the chance to create and perform a scientific experiment on a CERN accelerator beamline. Register your team to compete.
The Lancaster Particle Physics Package (LPPP) gives a brief introduction to particle physics for students 16-18 years of age (accessible to other age groups, as well).