Loom is another screencasting tool that allows you to record actions on your screen along with your voice.  You can model instruction, explain your thinking, or even provide specific directions in a familiar voice. 

Screencastify is a screencasting tool that will allow you to record actions on your screen and your voice. It's a great way to demonstrate skills, model instruction, or explain your thinking. In online learning, adding your verbal explanation, familiar voice and tone is more crucial than ever. AND for you, while screencasting might unnerve you at first, it most directly matches a simple lecture.