Physical science

  https://youtu.be/F8AGz4jG49w?feature=shared

https://youtu.be/o4ykrwidGWs?feature=shared   Micro-teaching  is a teacher training and faculty development technique whereby the  teacher  reviews a recording of a  teaching  session, in order to get constructive feedback from peers and/or students about what has worked and what improvements can be made to their teaching technique. Micro-teaching was invented in 1963 at Stanford University by  Dwight W. Allen , and has subsequently been used to develop educators in all forms of education. The skill of explaining is one of the most important aspects of effective micro-teaching. It's simply the expertise of a teacher that enables them to engage in effective communication with their students. This ensures that students comprehend the subject being taught without any difficulty.