One very active national group is the Contemporary Physics Education Project (CPEP, http://pdg.lbl.gov/cpep.html), which consists of teachers, educators, and physicists. This group has created the wall chart on Fundamental Particles and Interactions and distributed more than 100,000 copies to U.S. secondary schools and colleges. It also has very popular color software for high school and college students. Packets of classroom activities about particle physics have been mailed to every high school physics teacher in the United States. CPEP conducts many workshops for teachers on how to use CPEP materials to teach particle physics.
A more complete listing of elementary-particle physics education and outreach activities at universities and national laboratories may be found at http://www-ed.fnal.gov/hep/home.html.