[Littlemaster]

Not sure where you are heading with this @Littlemaster but in the UAE they have Smart Boards - quite expensive though - and in South Africa when I Googled I found technology for portable Interactive White Boards aimed at schools with small budgets.  I can then imagine one can create a video using this technology:
https://www.eduboard.co.za/edubox
https://www.youtube.com/watch?v=UiYYl78Wqzw

While I was Googling the subject I found this interesting application for teachers for creating video teaching material - that is free to teachers and students for the PRO version:

Thank you for the detailed reply, have you tried OBS? if so which one is better? OBS or LOOM?

This isn’t actually any sort of special “technology”.... heck, there’s nothing even technical about it.


All what they did is had a black background (possibly a green screen), then a clear sheet of glass/plastic in front of the person. So when the person in the video writes on the clear glass/plastic, it looks like they’re writing on the screen (since the camera can’t see the plastic/glass because it’s transparent).  However, it will look like the person is writing from the wrong side (right to left instead of left to right) since the camera is opposing the writing. But that’s also an easy fix as all they have to do is invert the video.

And Viola! 

Quite funny how the simplest of little video tricks can actually make something seem more complicated than it actually is.

That seems a nice idea, I have to conform it with some one.

my teachers in school use it. i dont know where you heard it is expensive or high tech thing. its just a simple board

Please guide me with its name, where can I buy that?