Average 4.76 based on 17 teacher ratings
Ron Koester is a Math teacher at Chaffey High School located in Ontario, California and part of Chaffey Joint Union High. Ron Koester's 17 teacher ratings contributes to Chaffey High School's ranking of 179 in California. Additionally, the average teacher rating at Chaffey High School is 4.44 stars.
4
Easiness
5
Helpfulness
5
Clarity
5
Easiness
5
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5
Clarity

he is a cool teacher. he explains things to me my teachers don't.

5
Easiness
4
Helpfulness
4
Clarity

Good Luck at Colony, Mr. K!

5
Easiness
5
Helpfulness
5
Clarity

very out going. go tigger!

4
Easiness
5
Helpfulness
5
Clarity

You ROCK!!! I wish you hadn't left, because you are a GRRREAT teacher!!!!

5
Easiness
5
Helpfulness
5
Clarity

i'll miss you Captain AVID.

5
Easiness
5
Helpfulness
5
Clarity

good person all the way. i'll miss him.

5
Easiness
5
Helpfulness
5
Clarity

cool person&funny!! I'll miss you!! he's tigger& captain AVID!! tigger rules!!

5
Easiness
5
Helpfulness
5
Clarity

You are a great tacher I will miss you next year! From the Geometry Queen!

5
Easiness
5
Helpfulness
5
Clarity

cool person. he's Captain AVID & Tigger. Cramer Rules! He's crazy.

5
Easiness
5
Helpfulness
5
Clarity

He is the coolest. he will help you on anything you want. he is funny and nice.

3
Easiness
5
Helpfulness
5
Clarity

Cool,Very Tiggerific,Out going, reflective, genuine.

3
Easiness
5
Helpfulness
5
Clarity

Super cool/ funny/ awesome teach i actually enjoy going to my Alg II class!!

5
Easiness
5
Helpfulness
5
Clarity

i remember koester tigger is is favorite character...

2
Easiness
5
Helpfulness
5
Clarity

I went from a D to a B in one quarter, so Mr. Koester can make anyone learn math

5
Easiness
5
Helpfulness
5
Clarity

I had a blast in his Alg II Class

3
Easiness
1
Helpfulness
3
Clarity

I deserved a better grade

3
Easiness
5
Helpfulness
5
Clarity

Captain AVID is awesome!

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Learn more about Chaffey High School

5-star
78%
4-star
7%
3-star
5%
2-star
2%
1-star
4%
Based on 1,413 Ratings
Chaffey High School is a public high school located in Ontario, California and part of Chaffey Joint Union High. Chaffey High School is ranked 179 in California. Learn More