For my audio project, the students called in to explain how a room is heated up by convection. We talked about convection and observed a convection current in a beaker of water that was heated up on a hot plate. I put rice in the water so they could visually see the current. We talked about the process in great detail, wrote down explanations and drew diagrams. A few days later, I gave the students the audio assignment. They first said their name and then started explaining how convection works to heat up a living room.
I really enjoyed listening to the responses. Over all the kids did well answering the question. I recommended that the students would first write it out and then call in the answer. Most kids did this and it worked well. We played some of the responses in class and the kids loved it. They also loved seeing how the transcription was so different than the actual words the person used.
Some students messed up the first time, so they called back a second time to restart. The only complaint, if any, was that an "anonymous" student rapped a song about wearing pants. The nice thing is that it is easy to delete.
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