I usually have a 3.5-4.0 GPA average and but his class was very hard, even for me (I ended up with a 71%). He is not helpful at all, and gets annoyed if you ask a simple question just to clarify a concept. I also asked for a retest or something that would help bring my mark up to a B but he firmly denied and said I should've tried harder in his class when I tried extremely hard.
The most boring teacher I have ever had ... EVER. I think he knows it too, cause he would randomly throw in a yell in the middle of a lesson. All that really did was wake you up, but it didn't make you pay any more attention.
He's a really nice person, he just gets confused sometimes. If you actually study and ask questions, you'll do pretty good in his class. Overall, he's better than most teachers
I dont think he knows how to teach Chemistry because he always refer to the teacher's guide