This method refers to a situation when an instructor uses visual content from Microsoft PowerPoint or software (such as MatLab, Stata and etc.) to deliver lecture material. In this case, we usually do not see the instructor in the frame (with rare exceptions when he/she may appear at the beginning and/or end of the video).
(1) Click here for William Spaniel’s tutorial on Rubinstein’s Bargaining
(2) Click here for the MatLab tutorial by M. Tamim