What software or tool is used in this video to present the material this way?
You need -
A screen recording software (e.g. CamStudio, Camista, FrontCam for Windows, QuickTime for Mac)
A Wacom tablet , or any pen input tablet to write naturally rather than using a mouse
A drawing software like Photoshop, Paint, SmoothDraw etc.
You just need to set the the screen recording software to record the drawing area of SmoothDraw.
Check this out too :
I like the Youtube, it's a big play platform
Separate names with a comma.