This is a perfect, and fun idea for kids that you could do with all units. However, I do see a classroom management problem, What are all the other students doing? I think podcasts would be perfect for students to do a review of a unit. You could have groups of four with different topics that will be used as a refresher before the final assessment of the unit. Students will be collaborating, writing, using technology, and practice speaking with podcasts. I picked this podcast, because it shows students that they can do the same thing in the classroom with the same success if taken seriously. Also, it shows students running the show, while the teacher just oversees. It is a great way to review, peak student’s interest, and engage them in curriculum across the board.