Useful sites for teachers: Physics

Flipping Physics has videos for high school physics teachers to "flip" the classroom

The Physics Classroom has a lot of great resources for high school physics, including Physics Interactives, Teacher Toolkits, and Concept Builders

Practical Physics presents “a collection of experiments that demonstrate a wide range of physical concepts and processes” for teachers of physics in schools and colleges.

Physics teachers might find some useful resources at https://www.aapt.org/Resources/teacherresource.cfm

Science, Optics & You - teacher resources, student activities and interactive java tutorials in light, optics and color
https://micro.magnet.fsu.edu/