Create Screencasts With a Cheap Tablet Device
You can create screencasts with a low-budget tablet system. Imitate Salman Khan.
The cheapest tablet is a Huion. It is about $50 on Amazon. Give it a try.
More expensive tablets are reviewed here.
The cheapest screencast software is www.Screencast-O-Matic.com. Practice recording with this. Use the free version. Then if you like it, pay about $20 a year to get rid of the watermark.
Use a free drawing program. Here are a few: https://www.techradar.com/best/free-drawing-software.
Use a glove. It is under $10.
You will also need a cheap lapel USB microphone.
Here is a video on how to do this.