Reviews of professor John Callas

Rating: 1.0/5, difficulty: 4.0/5
He never came to class prepared and was usually late. He would spend 20 minutes just correcting his PowerPoints. Every single lecture. Was not too knowledgeable of the material and would only make things more confusing. He takes points off for ridiculous reasons. You could get every question right and hell find ways to take points off. Terrible.

Rating: 2.0/5, difficulty: 4.0/5
Not one of the better instructors I've had. I give him a 2 because he is very willing to help a struggling student. That's where the good ends. Overall, he makes a straightforward concept extremely difficult. His homework is hard and tests even harder. Also a very picky grader. He marked a student off because she put "5 volts" instead of "5V".

Rating: 1.0/5, difficulty: 1.0/5
Nasty temper, comes to class unprepared often. Strict on attendance and also hypocritical.

Rating: 1.0/5, difficulty: 1.0/5
Do you not take his class he is a horrible teacher and person. Always loses his temper and slams on the desk for no reason.