This site is a great opportuntiy for math lessons. It gives an alternate to hear, an explanation of ways to complete certain math problems. Since not every student will understand the way I explain everything, I am more than happy to provide alternate 'teachers' to explain something. I can see the use of podcasts in this way being used for math centers and stations. This would give multiple students an opportunity to listen to the explanation and work through problems that are discussed. I could even put together worksheets that would go along with the explaination, so students could hear and see and work through all at the same time.