“微课”是指教师在课堂内外教学过程中,以视频为主要载体,围绕某个知识点(重点、难点、疑点)或技能等单一教学任务进行教学的一种教学方式,具有目标明确、针对性强和教学时间短的特点。其既有别于传统单一资源类型的教学课例、教学课件、教学设计、教学反思等教学资源,又是在其基础上继承和发展起来的一种新型教学资源。与微课结缘已有一段时间,之前自己也利用屏幕录像专家等软件录制一些小段视频,帮助同事或者朋友解决一些生 “Microcosm ” refers to a teaching method that teachers use video as the main carrier and teach about a single teaching task such as a knowledge point (focus, difficulty and doubt) or skills in the process of classroom teaching both inside and outside of the classroom. Clear, targeted and short teaching time characteristics. It is different from the traditional single-type teaching materials, teaching courseware, teaching design, teaching reflection and other teaching resources, but also on the basis of inheritance and development of a new type of teaching resources. It has been a long time since we started working with Microchips to record video clips to help our colleagues and friends solve some problems