On TeacherTube, educators share material, such as instructional math videos, with classrooms around the world. Another site, SchoolTube, mainly hosts videos produced by students in class with the help of their teachers.
One critical issue to keep in mind when sharing and discussing these videos with your students is media literacy, including general Internet reliability. Are the videos truly what they say they are? Might some of these clips violate copyright? What constitutes a "good" video?