Average 4.95 based on 59 teacher ratings
Howard Alcosser is a Math teacher at Diamond Bar High School located in Diamond Bar, California and part of Walnut Valley Unified School District. Howard Alcosser's 59 teacher ratings contributes to Diamond Bar High School's ranking of 1,184 in California. Additionally, the average teacher rating at Diamond Bar High School is 3.96 stars.
4
Easiness
5
Helpfulness
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Clarity
5
Knowledge
5
Textbook Use
4
Exam Difficulty
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Easiness
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Helpfulness
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Clarity
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Knowledge
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Textbook Use
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Exam Difficulty

Best teacher. Unfortunately he's retiring this year.

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

Mr. Alcosser is the best teacher I've had in my entire life.

4
Easiness
5
Helpfulness
4
Clarity
5
Knowledge

nuff said alcosser is the best. just talk lots/ask questions in his class

4
Easiness
5
Helpfulness
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Clarity
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Knowledge

Best Calculus teacher in the world. If you have him and you work hard, you will get a 5 on the AP test fsho

4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Mr. Alcosser was probably the best teacher I had at DBHS. He is so knowledgeable in calculus. Had him for 0 period Calc 2 and even when I was half asleep I was still entertained. I had severe senioritis second semester and still managed to get an A because of him. Funny, cute, sweet, and smart... what more could you ask for? My advice is DON'T SLACK OFF and do the extra credit!!! Seriously. You won't regret it. Also don't even try to cheat.

4
Easiness
5
Helpfulness
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Clarity
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Knowledge

I graduated college in 2009, and Mr. Alcosser was the most influential math teacher I've had in my life. He not only taught calculus, he taught us how to make a good impression, how to shake hands and look someone in the eye. He cared for us more than just a teacher. He has my utmost respect. :)

3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Mr. Alcosser is an amazing teacher. He is strict but pay attention and you get excellent results. I was fortunate enough to have him as my teacher and I benefitted so much.

3
Easiness
5
Helpfulness
5
Clarity
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Knowledge

Alcosser's an aMAZing teacher, and if you get him as a teacher, consider yourself lucky :) He's passionate and knowledgeable about what he teaches, and no worries-you're in good hands for the AP test.

4
Easiness
5
Helpfulness
4
Clarity
5
Knowledge

One of the best teachers at DBHS and also in the nation. He has a lot of pride that he is rated as the best calculus teacher in the country. Despite that, he is very funny and his class is very chill.

5
Easiness
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Helpfulness
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Knowledge

AWESOME TEACHER! always talkative and keeps you awake! Helped me get a .. FIVE! Having him again in HL

4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Mr. Alcosser is probably one of the best teachers you will ever have. He's smart, funny, clever, helpful, and just all around a fun guy.

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

The best math teacher. I wish there were many more of him.

5
Easiness
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Helpfulness
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Clarity
5
Knowledge

Mr. Alcosser is the best! He makes everything easy to understand and homework and tests are weighed equally so getting an A isn't hard. He's big on integrity, so don't cheat!

5
Easiness
5
Helpfulness
5
Clarity

best teacher out there! he makes sure to keep you awake at all times. sometimes annoying with the movies though, stopping it one second after the last spot we were at..

4
Easiness
5
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Clarity

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Easiness
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king of calculus ;D

5
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Clarity

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Easiness
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THE BEST! He makes me like math.

5
Easiness
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Clarity

an awesome teacher who can teach math and make it fun and interesting at the same time.

5
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Clarity

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Clarity

THE BEST TEACHER EVER!!!

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Easiness
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Best math teacher I have ever had !!

4
Easiness
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Clarity

5
Easiness
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Helpfulness
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Clarity

He is an AMAZING teacher. Honestly cares for his students as his own. Word of advice: take this ap test! He embarrasses you otherwise lol! Best Mathmatician in the Nation! No Joke! Father of Calc!!!!

5
Easiness
5
Helpfulness
5
Clarity

One of the best AP calc teachers ever ;)

4
Easiness
5
Helpfulness
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Clarity

It's been years since I've had him, but he was one of the best teachers I've ever had. I had him my senior year for 6th period, and it was a joy to end my day with him.

3
Easiness
5
Helpfulness
5
Clarity

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Easiness
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BULLYYYYYYY THIS IS FOR YOU! Very great teacher. Love him

5
Easiness
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Helpfulness
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Clarity

he is the best math teacher, possibly the best teacher, out there. He really cares about students, genuinely. no joke. and he's so funny&cute! I absolutely love him and will truly miss his class.

5
Easiness
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Helpfulness
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Clarity

Best. Teacher. Ever.

5
Easiness
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Clarity

SERIOUSLY THE BEST MATH TEACHER EVER!! THIS IS SOOOOOOOOOOOOOOO EXCITINGGG!!!!!

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Easiness
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Clarity

If you want math or engineering as your major, definitely pray for this guy to be your teacher. One trick you might use- take IB, you'll get HL1 math= calc2= alcosser, drop IB, u mite still have him.

5
Easiness
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Helpfulness
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Clarity

The best math teacher and ap grader in the whole world. He is willing to stay afterschool to tutor you.

5
Easiness
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Mr alcosser rocks! Always is helpful and very nice to students. His class is extremely easy to obtain an A while you understand the material extremly well. Take him if you can!

4
Easiness
5
Helpfulness
5
Clarity

THIS ISS SOOOOOOOOOOOOOOOOOOOOOOOOO EXCITTING! BEST TEACHER EVER! A++++ WOULD BUY FROM AGAIN!

5
Easiness
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Helpfulness
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Clarity

the best math teacher you will ever have

5
Easiness
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Helpfulness
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Clarity

one of the best math teachers out there. makes everything easy and makes sure every student in the class understands the material. not only is he a great teacher, but he is also very fun & lively! (=

5
Easiness
5
Helpfulness
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Clarity

the best teacher i have ever had, automatic 5 on the ap test

5
Easiness
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Helpfulness
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Clarity

the best teacher ive ever had and he makes everything seem so easy

5
Easiness
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Helpfulness
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Clarity

mr. alcosser is one of the best teachers i've every had! he is funny and energetic. Not only does he make each class fun and "exciting" he also teachers well.

4
Easiness
5
Helpfulness
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Clarity

If you have the opportunity, definitely take Alcosser.

5
Easiness
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Helpfulness
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Clarity

T H E best teacher I have ever had (don't remember kindergarten teachers). Funny + Good teaching = Best

3
Easiness
5
Helpfulness
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Clarity

this class is my wake up class...lol

5
Easiness
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Helpfulness
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Clarity

The best teacher in the world!

5
Easiness
5
Helpfulness
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Clarity

best teacher i ever had there is nothing bad to say about him

5
Easiness
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Helpfulness
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Clarity

Awesome calc teacher, makes the subject interesting and easy to understand. Now go get a 5

3
Easiness
4
Helpfulness
4
Clarity

good teacher yes, but not so good person. has an attitude problem. he needs to check himself. needs to be reminded that students aren't his kids.

5
Easiness
5
Helpfulness
5
Clarity

This guy can teach. Best teacher at DBHS by far next to Mr. Sismondo they made a great team.

3
Easiness
5
Helpfulness
5
Clarity

He is a GREAT teacher. I understand BC material better than I would have with any other teacher. I totally recommend taking him

3
Easiness
5
Helpfulness
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Clarity

Mr. Alcosser was my teacher in 1981-82 (co-taught w/Mr. Sismondo) at Walnut HS. It's great to see how well he's still doing (according to all the great reviews)

3
Easiness
5
Helpfulness
5
Clarity

best math teach you'll ever have

3
Easiness
5
Helpfulness
5
Clarity

best teacher in dbhs. you guys all should take him :)

4
Easiness
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Helpfulness
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Clarity

a fun class - but I learn lots of Calculus

4
Easiness
5
Helpfulness
4
Clarity

awesomeness. take him ^_^

4
Easiness
5
Helpfulness
4
Clarity

Best Calc BC teacher... hey... I got a 5...

4
Easiness
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Helpfulness
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Clarity

the greatest teacher at dbhs... his class is the only class i miss from college.

3
Easiness
5
Helpfulness
5
Clarity

great teacher, knows what he's doing

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Learn more about Diamond Bar High School

5-star
66%
4-star
12%
3-star
9%
2-star
4%
1-star
7%
Based on 3,654 Ratings
Diamond Bar High School is a public high school located in Diamond Bar, California and part of Walnut Valley Unified School District. Diamond Bar High School is ranked 1,190 in California. Learn More