Average 4.86 based on 122 teacher ratings
John Kessler is a Social Studies teacher at University High School located in Irvine, California and part of Irvine Unified School District. John Kessler's 122 teacher ratings contributes to University High School's ranking of 1,235 in California. Additionally, the average teacher rating at University High School is 3.96 stars.
3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
3
Textbook Use
3
Exam Difficulty
5
Recommended
3
Easiness
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Helpfulness
5
Clarity
5
Knowledge
3
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3
Exam Difficulty

He is by far the most intelligent teacher I have ever had in my life. I took American Experience last semester and I seriously admired his passion for current events. Never would I have thought that I would become so opinionated on so many subjects all because of that class. It really completed my high school experience and I would definitely recommend everyone to take it.

5
Recommended
3
Easiness
5
Helpfulness
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Clarity
5
Knowledge
2
Textbook Use
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Exam Difficulty

Im a senior and I can honestly say I this is the best teacher i have ever had in my entire schooling years. I think everyone should take his class (especially his American Experience) throughout their high school years. Amazing, thats all i could possibly say.

5
Recommended
2
Easiness
5
Helpfulness
4
Clarity
5
Knowledge
5
Textbook Use
2
Exam Difficulty

Mr. Kessler is absolutely one of a kind. He truly cares about his students and works hard to educate them. He's not about high test scores and cookie-cutter students. As long as you come to class with a smile and make effort to participate, he tries his hardest to support you and your grade. He offers ample extra credit at the end of each semester. He's blunt and has strong opinions that he shares with the class, but don't let that scare you! He's passionate about history and makes it relevant.

5
Recommended
4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
4
Textbook Use
4
Exam Difficulty

mr kessler is honestly one of the greatest teachers ive ever had you can just tell his vast knowledge for history and i loved his class so much we had discussions about real world situations and he was very informative he also tells great stories and his class was challenging but i think it was very rewarding he will prepare you for the ap exam and hes one of the few teachers who genuinly care about students :)

5
Recommended
3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
2
Textbook Use
3
Exam Difficulty

AMAZING HANDS ON BEST TEACHER

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

Mr. Kessler is a fantastic teacher!

4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
4
Textbook Use
4
Exam Difficulty

Mr. Kessler is a great teacher! He is so passionate about his work and his students' success and he makes me excited to learn history every morning. He WILL poke fun at you, but only with the best intentions. And even though I have heard the story about the gang fight at his school in NY 1000 times I still enjoy hearing it every time. I enjoyed APUSH with him so much that I want to take American experience every semester for the rest of my high school career just so that I can have him again :)

3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
1
Textbook Use
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Exam Difficulty

Mr. Kessler is, hands down, the greatest teacher at Uni. His American Experience class taught me more about myself than anything else. I've been in college for years now and sometimes I still think about the discussions we had in class during my senior year. Thought-provoking and incredibly influential.

2
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
1
Textbook Use
3
Exam Difficulty

Such an interesting class. He DEFINITELY knows his stuff, and takes pride in his job. First semester is quite tough, but he guarantees an A second semester, and TONS of extra credit. Hands down, one of Uni's best teachers.

3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
1
Textbook Use
3
Exam Difficulty

his American experience class has changed my life. He's so inspiring. best teacher along with mallis hands down. He made me really think about my life. what i was going to do after high school and just opened my mind up to a lot of things. Im so glad i took american experience. my favorite class i have ever taken in high school for sure. he's great. you'll actually learn

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

best us history teacher ever - he made the content interesting and really made me think about history. he may come of as abrasive but he's probably just messing around and you get used to it

3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Mr. Kessler is amazing. Any student is more than lucky to have him. BEST TEACHER EVER. Just so inspiring.

5
Easiness
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Helpfulness
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Clarity
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Knowledge

Cool. Awesome. Amazing. Chill. These are some of the words I would use to describe Mr. Kessler. One of the best teachers at Uni, hands down.

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Mr. Kessler is absolutely amazing. His APUSH class has changed my life forever. He makes you look at things in a way you never thought before, he opens your mind to what's really out there, and he genuinely cares about his students and their success. His passion for teaching engages every student in

4
Easiness
5
Helpfulness
5
Clarity

Had him for American Experience. TAKE THE CLASS!!!!! IT IS VERY INTERESTING!! I DO NOT REGRET TAKING THIS CLASS!! very controversial, but thats only half the fun.

3
Easiness
5
Helpfulness
5
Clarity

Excelent teacher, and ultimatly a proper role model. Teaching is not as mcuh a career for him as a mission. He wants to open students up to new ideas and try to help them evolve as people. He goes to great lenths to insure you suceed, but will make sure you put in the work.

5
Easiness
5
Helpfulness
5
Clarity

Mr. Kessler is by far the most open-minded man I have ever met. Yes, he does question everything, and yes, he can get controversial. But that's how we all should be. We are taught not to question what we are given; to take everything at face value. he is trying to change that. Trying to open our min

2
Easiness
5
Helpfulness
4
Clarity

Though he is a hard teacher, he is amazing at what he teaches. He has a passion for what he does.

2
Easiness
1
Helpfulness
1
Clarity

When I signed up for "American Experience," little did I know that I really would be attending "Kessler Experience." It would be nice to walk into his class one day and hear both sides to a particular issue or debate, rather than just one (his). His opnion in class is just that--an opinion, not usua

2
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5
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Clarity

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He is one of the best teachers i have ever had and he helps you learn about history but mainly life!!!! :) SANDWICHES hahah

5
Easiness
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Helpfulness
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Clarity

amazing teacher. passionate about what he believes and wants the best for his students

4
Easiness
5
Helpfulness
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Clarity

best APUSH teacher ever!

5
Easiness
5
Helpfulness
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Clarity

best teacher ever. period.

4
Easiness
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Helpfulness
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Clarity

The class requires a lot of studying but it's well worth it if you take it. It's an easy A if you're willing to work, and an easy 5 if you're willing to do as he says during class and for homework. And you have to love his anecdotes.

5
Easiness
5
Helpfulness
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Clarity

Wow. Hands down the greatest teacher I have EVER come across. This man is so passionate and informed. He cares so much about the success of his students. He makes you think it ways you never thought possible. His American Experience class has inspired/motivated me in so many ways. TAKE THE CLASS!!!!

5
Easiness
5
Helpfulness
5
Clarity

He works really hard for his students. He does night review sessions to help us review for the apush exam. He's a really touching teacher. No matter how hard the class seems, DO NOT drop out. I was going to drop out second semester but that would have been the worse desicion. BEST CLASS EVER!!!

5
Easiness
5
Helpfulness
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Clarity

DEFINITELY prepares u for the apush exam. At first u'll think he's REALLY hard but he gives a 8% curve and lots of extra credit. I used to hate history but now i love it. He teaches history in a totally different angle and really gets u to think. He works so hard for his students. best teacher ever!

5
Easiness
5
Helpfulness
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Clarity

Best teacher ever!!!American Experience class made me think about many things I never thought of or cared before. He loves teaching kids and is highly motivated. I never saw someone more energetic and giving. There is no fakeness in him and thats probably why we all love him

3
Easiness
5
Helpfulness
5
Clarity

He is a great teacher. I had him for APUSH, loved and hated every single second of it. Maybe the fact that he kept picking on the Japanese people in my class - including me - made it a little bit bad, though. But he is a good teacher. Knows his stuff and CARES about the students.

5
Easiness
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Helpfulness
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Clarity

GREAT TENNIS COACH

5
Easiness
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Helpfulness
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Clarity

I love Mr. Kessler! I was in his American Experience class in 02 and became his aid my senior year in 03. He is truly gifted with the ability to teach and inspires his students to open up their minds. University high is very fortunate to have him as a teacher!!

5
Easiness
5
Helpfulness
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Clarity

LOVE HIM! He truely makes american experience the best class ever...it wouldn't be as good with a different teacher. His class really changed my view and outlook on life...TAKE HIS CLASS YOU WON'T REGRET IT

5
Easiness
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Helpfulness
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Clarity

sick guy. great guy to coach tennis

3
Easiness
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Helpfulness
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Clarity

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Man, fantastic teacher. That is all that can be said. The many discussions about ongoing events got me involved with the current events. I follow politics thanks to him. Prep'd us WELL for the AP exam (with like 90% 5s, who can debate this). Energetic, knowledgeable, and passionate.

4
Easiness
5
Helpfulness
5
Clarity

Mr. Kessler is amazing. He really gets a person to think deeply about the issues surrounding them. He also prepared me very well for the AP US history exam. I think it was taking his class, which made me take an active interest in History.

5
Easiness
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Helpfulness
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Clarity

An all around amazing teacher. American Experience is WHY I showed up for the 2nd semester of my senior year. He loves to get your all rilled up, but he'll listen, and he makes you think. Long live Kessler!

3
Easiness
5
Helpfulness
5
Clarity

You may hate him at times, I certainly did. But he brings out your best and he'll have you wanting to learn more. He'll challenge you and ask the questions you probably don't want to hear. To inspire students is something that is very difficult, and that is something he manages to do adeptly.

2
Easiness
5
Helpfulness
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Clarity

somewhat unfair tho...

3
Easiness
5
Helpfulness
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Clarity

I'm a history major in college and I still use his writing styles successfully. By far the best teacher I had from K-12. If I remember anything from high school it was in his AP US History class.

3
Easiness
5
Helpfulness
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Clarity

I wish i could go back to highschool and sit in his class one more time! he changed my life! his an amazing teacher! take him!!

2
Easiness
5
Helpfulness
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Clarity

he has absolutely changed my life for the better. if all teachers were as dedicated as john kessler , we would have absolutely no problem with our education system here in america .

1
Easiness
5
Helpfulness
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Clarity

not easy but a legendary teacher he is the knight of history, shulman of history and ms. sorey of history. u learn sooo much in his class

5
Easiness
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Helpfulness
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Clarity

Great guy, good teacher... SUPER Liberal, pushes his beliefs on politics and religion on the class hardcore. I still loved his class though... take it with a grain of salt.

2
Easiness
5
Helpfulness
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Clarity

phenomenal. I had him for AP US and Am Ex. I'm in college now, and his influence is still with me. I love the shortie. he does a mind good.

2
Easiness
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Clarity

absolutely the most inspirational teacher I have ever had. This guys truly cares about his students and knows exactly what he's doing. His class will expand your mind and your comfort zone.

2
Easiness
5
Helpfulness
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Clarity

He teaches well and knows what he is doing

3
Easiness
5
Helpfulness
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Clarity

People should be lining up to take any of his courses. I took his American Experience course my senior year and regret not taking more of his courses. He is amazing and inspirational!

2
Easiness
4
Helpfulness
4
Clarity

Paul Kessler is the bomb!

4
Easiness
5
Helpfulness
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Clarity

Mr. Kessler's american experience class was awesome! That was such a fun class and gave us students the opportunity to speak our mind and share our opinions with everyone.

1
Easiness
1
Helpfulness
3
Clarity

He always seemed like he was trying to impress every body. He's very arrogant.

5
Easiness
5
Helpfulness
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Clarity

I had him for American Experience. He was a bit too liberal for me, but his class was fun and REALLY expanded my mind!

4
Easiness
5
Helpfulness
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Clarity

If you're in his AP U.S. class you'll have fun but be prepared to write a lot and think, you'll only get smarter. HIs American Exp. class makes him one of the best teachers at UNI.

4
Easiness
5
Helpfulness
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Clarity

simply the best teacher i've ever had. made true the "learn and have fun doing so" statement. i recommend him to anyone and everyone.

2
Easiness
5
Helpfulness
4
Clarity

Mr. Kessler is my absolute FAVORITE person in the ENTIRE universe!!! Anybody who goes through high school w/o ever having a class with him is really missing out

3
Easiness
5
Helpfulness
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Clarity

made me LOVE AP US and his class is truly a COLLEGE level class with college level reading and writing.

3
Easiness
5
Helpfulness
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Clarity

Mr. Kessler's da bomb!!! His lectures are great and very well organized. It's very likely that you can still remember the info years from your class!

3
Easiness
5
Helpfulness
3
Clarity

he's like those perky little dogs, full of energy. teaches a lot of cool stuff. love am ex cuz it make you think & isn't worksheet-driven (the anti-AP!)

3
Easiness
5
Helpfulness
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Clarity

I admire his openess of mind and intellectual awareness. Wish I can be a wonderful teacher like him someday.

2
Easiness
4
Helpfulness
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Clarity

I find him to be a great teacher and extremely knowledgable. He is perhaps one of the best teachers you could ever have. He just seems full of himself at times.

2
Easiness
5
Helpfulness
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Clarity

great teacher...he cares...A LOT...about his students e.g. he did nightly review sessions for the ap exam! for no extra charge! at a public school!

1
Easiness
5
Helpfulness
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Clarity

Thanks for the time and effort that you put into your class.

4
Easiness
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Helpfulness
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Clarity

Had him for American Experience.. BEST teacher ever!! my Favorite class!!!

3
Easiness
5
Helpfulness
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Clarity

The loads of papers can sometimes get on one's nerves, but after the AP test you'll realize what a great teacher Mr. Kessler is.

3
Easiness
5
Helpfulness
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Clarity

OMG I finally found Kessler, I got a 96 on the American History regents because of him at Glen Cove high in 2000, I loved him, Awesome guy greatest teacher

3
Easiness
4
Helpfulness
4
Clarity

I don't have you as a teacher but i always pass you while you are playing tennis and i just have to say that you are one of the very few people who intrigue me.

3
Easiness
5
Helpfulness
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Clarity

Although kessler's class involves many papers, ultimately his class rocks and hes an awesome teacher. Truly makes you think and pushes you to your limits. Peace

3
Easiness
3
Helpfulness
3
Clarity

You are so opinionated which is not bad, but maybe if you started listening a little instead of always putting people down for their opinions you would be cool.

1
Easiness
2
Helpfulness
2
Clarity

lil jon is a good teacher. he helps you lots on the essays.

4
Easiness
5
Helpfulness
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Clarity

mr. jon seriously knows alotta history. he doesn't try 2 brush off your q's. if he doesnt kno it, it will research it. i love kessler.

5
Easiness
5
Helpfulness
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Clarity

amex is a very easy A.

5
Easiness
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Helpfulness
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Clarity

lil john. he is hilarious and knows alot about alot. can get violent when he throws stuff at u. still, one of the best teachers at UNI.

2
Easiness
5
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Clarity

Best Teacher Ever!

1
Easiness
5
Helpfulness
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Clarity

really makes me think. love the class

1
Easiness
5
Helpfulness
5
Clarity

thank you for all you did for us

1
Easiness
5
Helpfulness
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Clarity

HE IS THE BEST TEACHER ON THE FACE OF THIS EARTH!!!!!!!! AHHH!!!! HE'S THE BEST OF THE BEST WITH FULL DEDICATION AND SENSE OF HUMOR =)!!

1
Easiness
5
Helpfulness
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Clarity

hardest working teacher i've ever met. Just that he's sorta hard...anyways, if you have the chance to have him as a teacher, take it!

1
Easiness
5
Helpfulness
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Clarity

best teacher ever. period. end of discussion

1
Easiness
5
Helpfulness
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Clarity

school is not the same when he is absent

1
Easiness
5
Helpfulness
5
Clarity

WHOO history's FUN? who knew!!!!

2
Easiness
5
Helpfulness
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Clarity

does not get enough credit for how much he puts into his class

3
Easiness
5
Helpfulness
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Clarity

tries very hard..the best teacher ever

2
Easiness
5
Helpfulness
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Clarity

best teacher around

1
Easiness
5
Helpfulness
5
Clarity

is there a better teacher anywhere

2
Easiness
5
Helpfulness
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Clarity

He used to be my teacher in GCHS....thanks 4 everything!

1
Easiness
5
Helpfulness
5
Clarity

hard! eesh. but still the best

2
Easiness
5
Helpfulness
5
Clarity

I visit him on a daily basis just to knock over his desks and cause havoc

1
Easiness
5
Helpfulness
5
Clarity

best teacher at uni...period

1
Easiness
5
Helpfulness
5
Clarity

Mr. Kessler is awesome.....no questions asked.

1
Easiness
5
Helpfulness
5
Clarity

He's a great & funny teacher. His class is hard, but you really do learn stuff.

1
Easiness
4
Helpfulness
4
Clarity

Awesome teacher, but his class is fricking hard

1
Easiness
5
Helpfulness
5
Clarity

most dedicated and caring teacher, period.

2
Easiness
5
Helpfulness
5
Clarity

napoleonic complex, ah i found his jokes funny..shame...best teacher i've had

1
Easiness
5
Helpfulness
5
Clarity

geeeeez this class is SO hard but i can't fail the ap to save my soul

1
Easiness
4
Helpfulness
5
Clarity

arrogant yet compassionate, carring, and idealistic

3
Easiness
5
Helpfulness
5
Clarity

Awesome coach. man, those 3 hours practices pay off.

5
Easiness
5
Helpfulness
5
Clarity

i rated Kessler the best because that's what he wants right?

1
Easiness
5
Helpfulness
5
Clarity

doing this while procrastinating on one of those weekened long papers

5
Easiness
5
Helpfulness
5
Clarity

quality, not quanity

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Learn more about University High School

5-star
69%
4-star
11%
3-star
9%
2-star
4%
1-star
5%
Based on 4,249 Ratings
University High School is a public high school located in Irvine, California and part of Irvine Unified School District. University High School is ranked 1,232 in California. Learn More