There are several recording methods of micro-lessons, such as camera recording, digital mobile phone shooting and screen recording software recording. The following introduces the method of recording micro-lessons with screen recording software. (1) Tool software: computer, earphone (with microphone), video recording software Camtasia Studio or snagit or CyberLink YouCam, ppt software (2) Method: screen recording ppt presentation, supplemented by recording and subtitles (3) Process description: Step 1, making PPT courseware; Step 2: Open the video software and teaching PPT on the computer screen at the same time. Instructors can wear headphones, adjust the position and volume of microphone, adjust the position of PPT interface and screen recording interface, and then click the "Recording Desktop" button to start recording. Teachers can explain while demonstrating, and can cooperate with marking tools or other multimedia software or materials to make the teaching process as lively and interesting as possible. The third step is to process and beautify the recorded teaching video.