1.微课制作原则与要求。首先,微课时间一般要控制在10分钟以内。因此,微视频资源容量相对不大,且对教师录制时的要求较高。它要求教师在固定的时间内将重点内容讲解清楚,且由于视频录制时没有学生的参与交流,故而教师录制只能自导自演,力求做到“场上无学生”与“心中有学生”的自然融合。其次,教师在录制时不能因为没有学生就将基本教学流程舍弃掉,如对学生的导入、提 1 micro-class production principles and requirements. First of all, micro-class time generally controlled within 10 minutes. Therefore, the micro-video resource capacity is relatively small, and the requirements of teachers when recording is higher. It requires teachers to explain the key content clearly in a fixed time, and because there is no student participation in video recording, teachers' recording can only be self-directed and strive to achieve “no student ” and “in the heart Student ”natural fusion. Second, teachers can not record the basic teaching process because they can not be discarded because there is no student, such as the introduction of students, mention