This is not a question as such, but more of a suggestion for the author. After the introduction video, the course barrels straight into things with no real fundamental explanations, no guidance as to prepping Blender to allow you to follow along with the videos and a certain amount of assumed navigational knowledge.
Since this is in the 'Introduction to Blender' course, I feel like there is a missing step between the introductory video and this first lesson that should be bridged to facilitate those who are completely new to the software (and the concept of lighting in general) following along comfortably, perhaps with the caveat that those who are more confident can skip on to *this* video.
Asa