>My money is on the fact that their teacher was managing some other student doing something stupid.
But an ineffective teacher also happens in college where professors do not need to deal with any misbehaving adult students.
Surely many of us have experienced a college class (in USA) being taught by a TA that can barely speak English. Even though the students are all quiet and respectful, nobody understands the lecture.
In those situations, the advantages of on-site presence of the professor is overshadowed by the disadvantages of the ineffective teaching presentation.
That's why many Youtube mathematics videos have comments such as:
But an ineffective teacher also happens in college where professors do not need to deal with any misbehaving adult students.
Surely many of us have experienced a college class (in USA) being taught by a TA that can barely speak English. Even though the students are all quiet and respectful, nobody understands the lecture.
In those situations, the advantages of on-site presence of the professor is overshadowed by the disadvantages of the ineffective teaching presentation.
That's why many Youtube mathematics videos have comments such as:
https://www.youtube.com/watch?v=ly4S0oi3Yz8
+ 261 thumbs up: "Your videos are what college should be like. And isn‘t."