Data Science: Linear Regression

This is supposed to be an introductory course in linear regressions using the programming language R. The problem is, there's no evidence that the professor knows how to program in R. None of his examples run. The course forums are full of people trying to figure out how to get the code to work. Some of the problems seem to stem from the professor using his own private R packages, which define commonly-used R commands differently than in 'standard' R (neither the syllabus nor the lectures give any hint as to what packages he's using). Even if you download the packages that students have guessed, there are still some examples that nobody has figured out how to run, and these threads have been going on for months.
The professor seems to misunderstand basic programming concepts as well as syntax. A task was to find the oldest male child in every family, the professor's approach was to limit the data to entries where the child was the oldest and the child was male; in other words, in a family with a daughter and then a son, the professor's code would omit that family entirely.
Given the problems answering any of the questions or following any examples, it's tough to evaluate the professor's statistical knowledge.