Earth Day is finished and it was a challenging but very rewarding experience for both my students and myself. The students all did a great job presenting and each group was allowed to choose the visual component that they felt best expressed their topic choices. Overall I think the most effective student presentations involved the use of slideshare while the students gave their oral component. One group did a VoiceThread, and a couple of groups even did podcasts although they are not uploaded. This first 24 hour Webcastathon will hopefully be the first of many to come. Overall the variety of presentations from other classrooms and teachers was amazing as well as the participation from several different countries.