[deanhills]

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: