Screenflow is a application for your computer that allows you to record your screen. It can record the screen, audio, and yourself. You can edit the Screenflow after you are done recording and delete a section that you messed up on, or it will let you add annotations, scales, text boxes, call outs, and more. It allows you to record your screen when doing a lesson, or the student can record their screen and go back to it and watch the lesson how many times they need to.
In my tutorial I showed you how to add scales, annotations, text boxes, call outs, and the basic things in Screenflow. I also showed you how to split a clip, delete a clip, and add transitions. Scales are where you zoom in the screen and get a bigger picture of where you are talking about. Call out are when it shows where you mouse is and zooms up on it. Annotations are like arrows and boxes you can put in to show where you are talking about.
Screenflow would be useful in the future because you can go back and watch a lesson from your teacher if you needed review. You could watch the lesson and see it again to learn it like you were in the classroom during the time it was recorded. It is useful for your education to review and learn lessons. It is also good for students who did not understand the lesson. They can go back to the lesson and watch it and review the lesson multiple times.