American Association of Physics Teachers
The American Association of Physics Teachers (AAPT) was founded in 1930 for the purpose of "dissemination of knowledge of physics, particularly by way of teaching." There are more than 10,000 members in over 30 countries. AAPT publications include two peer-reviewed journals, the American Journal of Physics and The Physics Teacher.
Source: Wikipedia — American Association of Physics Teachers (CC BY-SA 4.0)