A great video from TED. Robert Full: Learning from the Gecko’s tail. The combo of biology and robotics make this a fun lesson. Dr. Full also demonstrates the nature of scientific discovery by following each discovery with another concise question that can be answered through experimentation. If I were a teacher, I’d have my students first watch the video on their own and individually try to count the number of times he asks a question, then watch it in groups to pull the questions and describe how each one was answered.