Average 4.88 based on 13 teacher ratings
Ron Koester is a Math teacher at Colony High School located in Ontario, California and part of Chaffey Joint Union High. Ron Koester's 13 teacher ratings contributes to Colony High School's ranking of 1,265 in California. Additionally, the average teacher rating at Colony High School is 4.2 stars.
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I had Koester in my sophomore year (2004) and he was such a great teacher and helpful that when I transfered schools I went to him for math help. Math is my worst subject but he explained it in words I could understand. 5*s

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i thin kkoster is pretty kewl. he tells it like it is, and tries to make school fun. he brings school sprit to the school, which is something that our school really really lacks

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KOester is the COolest teacher at Colony! :D

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Mr. Koester is the tightest teacher in the whole colony school and i'm tryin to keep it that way if the haters don't mind!!!

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Best math teacher since forever!! thanks Koester!!

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You a very cool man even though I havent had you as a tacher yet..Tandra

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The coolest, easiest teacher I have ever had.

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Great great great teacher! Made geometry EASY for me! Not only a wonderful teacher, but a really cool guy just to talk to. Luv him luv him LUV HIM!!!

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KOESTER U R SO TOTALLY KOOL, AT THE BEGINNING I HATED U BUT THEN I GOT 2 KNOW U BETTER AND U ROCK! U'RE HILARIOUS, AND THE BEST MATH TEACHER IN THE DISTRICT.

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HE y you are the cooles't even though im not in your class anymore you roock

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I love mr. koester but now i'm in module C and I miss him! -Karla per.6

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HEY koester you're the BEST EVER! ONly ALgebra teacher who KNOWS what he's doing

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Learn more about Colony High School

5-star
77%
4-star
8%
3-star
6%
2-star
2%
1-star
4%
Based on 595 Ratings
Colony High School is a public high school located in Ontario, California and part of Chaffey Joint Union High. Colony High School is ranked 1,266 in California. Learn More