He does his job well which is to teach chemistry. Well organized & knows his stuff. He doesn't give a show & doesn't tolerate people chatting, so many students find that "boring".
I agree with all these comments. He now teaches on my school. He's extremely boring, it's impossible for me to stay awake in his class, he DOESN'T answer to students' questions. WORST TEACHER EVER.
I found him just fine! To be quite honest, he wasn't as bad as people had warned me about! I managed to get a good enough science grade, without dreading class.