Stephen T. Thornton, a professor in the department of physics at the University of Virginia, has created this website to bring together a number of lesson plans for teachers in the field. Within this "Teacher Investigations" section of the site, visitors can look over three different classroom activities. The investigations include explorations into the world of light bulbs, the workings of circuits, and so on. Each activity includes a number of helpful diagrams, instructions, and questions for group discussion. Additionally, the site contains a list of recommended readings for physics teachers.