Average 4.65 based on 20 teacher ratings
James Costello is a Math teacher at Charter Oak High School located in Covina, California and part of Charter Oak Unified. James Costello's 20 teacher ratings contributes to Charter Oak High School's ranking of 336 in California. Additionally, the average teacher rating at Charter Oak High School is 4.08 stars.
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From K-College (that's 17 years of school), he's the best math teacher I ever had. Some Old Horse Came A Hopping Through Our Alley!

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MR. Costello was the greatest teacher of all time. I would always solve the chess problem. Chess is alot like math.

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your awesome!!!

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hes a great teacher

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Mr. Costello is by far one of the best teachers ver. His class isnt too easy but it's fun and he's great.

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AWSOME TEACHER!!!!!LOVE THOSE JOKES!!!

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Mr. Costello is a great teacher. He taught me, my mom, my sister, my cousin, my other cousin, my aunt, my uncle, and my other uncle. We all loved him.

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he sure likes his games! I like his homework style. He is kinda layed back, and fun

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Mr. Costello is a very good teacher!

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Mr.Costello is so cool...love those corny jokes..."thats a zoid, and hes trapped" tee hee hee rawk on Mr. COstello...to bad my little sister can't have him

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I really enjoyed his class way back in 1983. 1st teacher to have a Commodore 64.

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i did spanish homeork everyday and didnt learn a thing but still got an A

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Unorthodox teaching style, but great. Is a bit too preoccupied with chess.

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His classes were easy...I wonder if I really learned the stuff he taught though

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costello's the coolest! his jokes are way better than carey's... LoL

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Mr. Costello's cool. His class is awesome, I'm learning a bunch

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umm well he's just him

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great teacher

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good ol' corny jokes, can sleep in class if you already know the stuff

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cool & fun. MUST pay attention!!

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Learn more about Charter Oak High School

5-star
71%
4-star
13%
3-star
7%
2-star
2%
1-star
4%
Based on 772 Ratings
Charter Oak High School is a public high school located in Covina, California and part of Charter Oak Unified. Charter Oak High School is ranked 336 in California. Learn More