The worst teacher in the department who just has no quality of teaching.

The worst teacher in the department who just has no quality of teaching. He just provided us his 40-year-old problem-solving draft pages to memorize. He literary pushed us to inhumanly memorize mathematics, and in his incourse or final exams he deliberately set the problems in a way that only those who are capable of memorizing mathematics without understanding anything can get a handful of marks. Also, he behaves very poorly with students.