Average 3.47 based on 10 teacher ratings
Mr. Grantz is a Science teacher at Mentor High School located in Mentor, Ohio and part of Mentor Public Schools. Mr. Grantz's 10 teacher ratings contributes to Mentor High School's ranking of 207 in Ohio. Additionally, the average teacher rating at Mentor High School is 4.27 stars.
2
Easiness
4
Helpfulness
4
Clarity
3
Knowledge
1
Textbook Use
4
Exam Difficulty
5
Recommended
3
Easiness
5
Helpfulness
4
Clarity
5
Knowledge
1
Textbook Use
3
Exam Difficulty

Going into Mr. Grantz's class this year, I heard a lot of negative opinions about him and nothing good whatsoever so by default, I was a bit scared for my grade. Now that I have dealt with him quite a bit, I can deduce that he is a great teacher, fun to talk to hilarious at times in class, and will let you come after school anytime that he doesn't have basketball practice so you can recieve some help, take a test, or whatever. You get what you give.

1
Recommended
1
Easiness
1
Helpfulness
1
Clarity
1
Knowledge
1
Textbook Use
5
Exam Difficulty

Does not help students with work is very confusing and the stuff he teaches is not even on the exam terrible teacher and should find a new job

2
Easiness
5
Helpfulness
5
Clarity

Excellent teacher, very nice to those who take class seriously..... needs to work on being nice to those who don't : /

1
Easiness
5
Helpfulness
5
Clarity

One of the best teachers ive ever had. Hardest class ever but willing and wanting to help. Made me want to learn, thank you so much mr grantz!!!! =]

2
Easiness
1
Helpfulness
2
Clarity

Mr. Grantz is the worste teacher i've ever had. He doesn't teach at all... he relys on you learning from the book, and doesn't help you if you need help. Worste teacher ever!

3
Easiness
4
Helpfulness
4
Clarity

Although Mr. Grantz's chemistry class isn't the easiest..his humor and ripping on Ashley Durosko daily is the highlight of my day!

2
Easiness
4
Helpfulness
3
Clarity

He is cool.. he calls my class morons all the time and then denys it. but w/e. Hes hard... but he is willing to help. He needs to teach more then having us rely on reading.

2
Easiness
5
Helpfulness
4
Clarity

One of the best teacher's I've ever had. He does not hand out grades and I have learned a lot. Good sense of Humor

1
Easiness
4
Helpfulness
4
Clarity

I love mr. Grantz, He used to let me skip class and he never wrote me up.

3
Easiness
4
Helpfulness
4
Clarity

This teacher is another one that makes you want to learn (for the most part). Mr Grantz is a helpfull teacher that will also try to accommodate you if you need help. Thank you, Mr Grantz.

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Learn more about Mentor High School

5-star
73%
4-star
12%
3-star
6%
2-star
3%
1-star
4%
Based on 1,429 Ratings
Mentor High School is a public high school located in Mentor, Ohio and part of Mentor Public Schools. Mentor High School is ranked 206 in Ohio. Learn More