The teacher or student wants to record their screen only, screen plus audio, or a combination of screen, audio, and/or video.
Examples of when you might use a Screencast
Recorded Lesson Introductions - You can use a screencast to simply record your computer screen with audio, or with your video embedded in a smaller screen on your computer.
Recorded Lessons - You could record yourself and your desktop to provide students with a video lesson. Pair this with a learning management system (like Google Classroom) to provide followup activities for students.
Student Activities - Students can create their own screencasts in response to an assignment you give them.
With Screencastify, you can record your entire desktop to present lessons to your students. Record yourself with the webcam option to demonstrate a skill or procedure. All recordings are easy to share via Google Classroom or shareable link through email or other platform.
Check out the Beginner's Guide to Screencastify for step-by-step instructions.
Right now, Screencastify is offering a free upgrade. Code is: CAST_COVID
Editing your Lesson Overviews - Screencastify Editor Beta
If you need to edit a video you have created, there are several tools to select from. Screencastify has a new tool called Screencastify Editor Beta, that allows you to edit your videos in the cloud.
With Loom, you can record your screen, voice, and face to create an instantly shareable video in less time than it would take to type an email. It really is that easy!
Check out the Getting Started with the Chrome Extension for step-by-step instructions.
Camtasia is a feature-rich screencast tool that also includes a full-blown video editing software.
It offers you all the standard recording options, so you can record your entire screen or a portion of the screen, record the system audio along with your microphone audio, and combine all these streams with the webcam feed.