First of all, micro-lessons are the same as ordinary video tutorials, and the core of production is the same. Micro-course is just an old content of a new concept. Of course, the characteristics of micro-courses are short and clear, which can be understood at a glance and done as soon as possible. This kind of video is a good micro-lesson, but it also needs a deep foundation. It has nothing to do with your use of camtasia tools.
If you are familiar with ppt, you can do ppt first, then record the explanation with camtasia, and finally make a video. The focus is on interaction. One function of Camtasia software is to add interactive effect to the video, that is, pause the video at a specified time, then ask questions for students to answer, and then continue playing.
However, this function is only useful on your own website or when making video packages. Not if you upload it to Youku Tudou.