Average 5.0 based on 6 teacher ratings
Gary Granneman is a Math teacher at Ottumwa High School located in Ottumwa, Iowa and part of Ottumwa Community School District. Additionally, the average teacher rating at Ottumwa High School is 4.17 stars.
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Easiness
5
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Helpfulness
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Very approachable and kind man. Knows his stuff and is good at explainig tough concepts. Takes hard subjects and makes them less intimidating. Has a good sense of humor.

3
Easiness
5
Helpfulness
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Clarity

3
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mr granneman is such a cool math teacher...hats off!

3
Easiness
5
Helpfulness
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Mr. G is the coolest. Mr. G...if you read this...you rock. Hats off to you!!!

3
Easiness
5
Helpfulness
5
Clarity

I had Granneman three times during highschool and loved every minute of it. He knows how to explain things to you in a way that you can understand them and he's a very laid back teacher!

2
Easiness
5
Helpfulness
5
Clarity

Works very hard and cares about his students

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Learn more about Ottumwa High School

5-star
71%
4-star
4%
3-star
4%
2-star
2%
1-star
17%
Based on 73 Ratings
Ottumwa High School is a public high school located in Ottumwa, Iowa and part of Ottumwa Community School District. Learn More