Tutor USA is a site that offers a variety of useful links for mathematics teachers. In addition to free worksheets and lesson plans, Tutor USA has built a nice collection of video tutorials. The videos in the collection come from sources like YouTube, Blip.tv, and TeacherTube. Some of the videos are quick how-to videos while others are longer lecture-style explanations of mathematics concepts.
Applications for Education
Tutor USA could be a could source of supplementary materials for middle school and high school mathematics courses. The organization of Tutor USA’s video section leaves a bit to be desired so I would find videos on Tutor USA then embed them into my classroom blog or website.