This Powerful Screen Capture Tool's Pro version is now PERMANENTLY FREE in response to COVID19! Check out the video posted below. The following link can be used to pursue getting verified as a student or teacher.
This page includes several powerful options for screen capturing software for use in teaching or importing to videos production software.
Not only does this software have free options, but the upgrades are extremely affordable. You can visit their website at https://screencast-o-matic.com/home
Below is a link to a video on using Screencast-o-Matic
For all who are familiar with the retired Jing screen capture software, TechSmith now has a modernized version called TechSmith Capture. It captures still screen shots as well as video records of your screen. At this time it is only working for Mac users. Since it is free, who can complain.