Is this teacher frustrated or what?

[myelyn]

I will summarize everything real quick for you readers:

My teacher gets irritable or cranky if students do not participate/answer when he/she asks questions. When a student tries its best to be involved, he/she ends up stuck. The teacher gets irritable when a student makes mistakes. The class has been already difficult and this educator is making it harder for us students to be in it. It's already intimidating to speak up in the class and then we get insulted or busted in front of our colleagues if we give a wrong input.

Perhaps, this dead science course is due to this educator's behavior, not just because it's difficult. Almost everyone in the classroom has been sitting passively; poor engagement during the lecture.

FYI, this teacher is an awesome instructor and I've been doing well in the class, punctual, and respectful to everyone.

Can someone help me understand this instructor?

What's this instructor has been trying to convey us students other than learning the presented objectives?

Disclaimer: I do NOT advocate educators to be clowns/comedians in the educational environment, and to treat me like a princess. I completely understand that school (study) is not for entertainment; it is for learning to gain knowledge & experience.

I don't like it when this instructor disrespects my colleagues unreasonably nor I want my colleagues to disrespect our educator.

I've never encountered a teacher like this one in the past. Definitely, I had difficult teachers that wanted us students to learn the materials, but not being contemptuous to students. I earned excellent grades from them. My previous teachers made me proud of my academic integrity and this current one. I wasn't someone who just wanted to pass their courses, but also part of the professionals. I intrinsically value knowledge.