Average 4.45 based on 44 teacher ratings
Donald Barry is a Math teacher at Phillips Academy located in Andover, Massachusetts. When comparing Donald Barry's ratings to other teachers in the state of Massachusetts, Donald Barry's ratings are above the average of 4.37 stars. Additionally, the average teacher rating at Phillips Academy is 4.31 stars.
2
Easiness
4
Helpfulness
4
Clarity
5
Knowledge
5
Textbook Use
3
Exam Difficulty
4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge
5
Textbook Use
3
Exam Difficulty

He's amazing and inspiring in every way. Very clear and willing to take time to explain everything to you. He love students who are motivated and not scared of the subject or of him.

3
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

A great teacher. As the co-writer of the ARML (nation-wide math contest) problems and the main teacher for Math Club, Mr. Barry is an incredibly intelligent person. As a teacher, he is very clear and helpful. His tests are exactly like his study guides, so the tests aren't too hard if you study wisely.

1
Easiness
1
Helpfulness
2
Clarity
5
Knowledge

I've heard Mr Barry is a great teacher, but this really only applies if you are already good at math. I'm not the best math student and Mr Barry is terrible at explaining or helping. I simply couldn't understand proofs and how to get from point A to point B and all he did was continue to explain it his own special way that very few people understood. His class is also exceptionally difficult, and I've had problems that Uppers and teachers can't answer.

1
Easiness
3
Helpfulness
4
Clarity
5
Knowledge

Very Hard and Very Challenging He doesn't seem to understand what a good grade is though.

4
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Great teacher! Makes you work for the 6, but totally worth it! I always liked math but he taught me to love it. If you go to conference before a test, he gives you practice problems very similar to what's on the test. It'll be hard but you'll come out a better person, but don't take it if you're jus

2
Easiness
4
Helpfulness
4
Clarity
5
Knowledge

very passionate and knowledgeable, to the pt where he rambles on in extraneous explanation for something simple like a hw prob. very hard to get a good grade w/o a curve, but always meet with him and go to conference, he's great with helping you out. you just need to know how to manipulate the formu

1
Easiness
2
Helpfulness
4
Clarity

switch out if you want to save your gpa. he's not as good as some of the other math teachers, and he's also not very friendly.

1
Easiness
4
Helpfulness
4
Clarity

Fantastic teacher. Very difficult. I don't think I've ever gotten worse grades.

3
Easiness
4
Helpfulness
5
Clarity

Undoubtedly hardest math teacher ever. He's a great teacher and provides a lot of help, but you really need to understand more than just formulas for tests. Every test seems to be cumulative and everything you learn is combined into his difficult tests. You have to do more than study to do well tho.

4
Easiness
4
Helpfulness
4
Clarity

He's not that hard. Know your stuff, and you can get very good grades without a problem. Believing his reputation as hard will not help mentally. He is gentle but enthusiastic. Makes students go to the board a lot, which is good practice. Great teacher overall!

1
Easiness
4
Helpfulness
4
Clarity

I had considered myself good at math for my whole life, then he became my math teacher. I got the worst math grades I had ever had, but I think he is a great teacher. One thing is for sure: you will never forget about Mr. Barry.

1
Easiness
5
Helpfulness
5
Clarity

Easily the smartest person I've ever met. Awesome teacher. I learned so much in his class. Worst grades I've gotten in my life

1
Easiness
3
Helpfulness
3
Clarity

GREAT TEACHER. horrible horrible hard tests >.< I've never finished any one of them ~ never had a math grade this low

1
Easiness
5
Helpfulness
5
Clarity

His class was the hardest class I have ever taken in my entire life. Never have I seen my grade plummet so fast. Apart from how difficult his course is, he is a very interesting man and a good teacher

1
Easiness
4
Helpfulness
3
Clarity

Incredible man, incredible teacher, horrendous grades. I wish his classes were scaled--he makes it worthwhile, yet the tests can be dehabilitating to the point that you want to switch out.

1
Easiness
5
Helpfulness
4
Clarity

great teacher. impossible tests

4
Easiness
5
Helpfulness
5
Clarity

Mr. Barry is the most interesting person ever. He's a great teacher. Your first term with him may be hard but once you get used to his tests class will be so much fun.

1
Easiness
2
Helpfulness
2
Clarity

awful teacher. he knows his material but doesnt teach it well. you will never finish his tests/quizzes before the bell rings. if you can't teach yourself and keep up, good luck.

1
Easiness
5
Helpfulness
5
Clarity

Will definitely help your math skills, but won't help your GPA either. I'm sorry if you have him senior fall.

1
Easiness
5
Helpfulness
4
Clarity

AMAZING! Defintely the best math teacher I've ever had. He really cares about his students understanding of the material. Very interesting classes.

1
Easiness
5
Helpfulness
5
Clarity

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Easiness
2
Helpfulness
2
Clarity

Somewhere out there, an evil empire is missing its dreadlord. My advice: run and take your GPA with you.

2
Easiness
5
Helpfulness
5
Clarity

He is (as my friend puts it) my God. Amazing, intersting, well-spoken, loves math, intense classes, fast-paced, notorious for hard tests. I love his 600 course!

1
Easiness
4
Helpfulness
5
Clarity

Amazing Teacher, really cares about the subject and wants his students to leave the class learning something not just reading the textbook. Yeah, he's hard, get over it!

2
Easiness
5
Helpfulness
5
Clarity

hard but a good teacher

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Easiness
2
Helpfulness
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Clarity

At first, he was open to helping us a bit outside of class. Now he's just like go figure it out yourself. He has definite favorites and picks on others in class

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Easiness
3
Helpfulness
3
Clarity

HARD TEACHER, got a not so great grade from those tests, but i loved MATH 310.

1
Easiness
3
Helpfulness
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Clarity

He's very good at teacher, and his tests are extremely hard... but he'll make you ready for the APs. MATH600

2
Easiness
5
Helpfulness
4
Clarity

I had Mr Barry for 310- he's a great teacher and is really, REALLY into math. Tough too, watch out for that last question on tests...

1
Easiness
4
Helpfulness
4
Clarity

Great guy, bad tests, extremely hard grader.

1
Easiness
4
Helpfulness
5
Clarity

I also think Mr. Barry is a great teacher...but challenge problems should be left for homework assignements not examens.

1
Easiness
5
Helpfulness
5
Clarity

i LOVE mr. barry. he's the best tr i've ever had. his passion for math really makes math fun and interesting, and i honestly love him. MATH 310.

2
Easiness
3
Helpfulness
2
Clarity

He's a funny, cool guy, but he knows and loves the material so much that he can't understand where those of us who don't share his passion are coming from.

1
Easiness
4
Helpfulness
3
Clarity

Mr. Barry is a very difficult teacher and a very very hard grader. He is, however, funny and willing to help.

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Easiness
5
Helpfulness
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Clarity

Hard teacher, yes, but not unreasonable.

1
Easiness
5
Helpfulness
5
Clarity

Very cool, but very hard. But a very good teacher who likes teaching, and is good at it.

2
Easiness
5
Helpfulness
5
Clarity

Mr. Barry is great. He's friendly, loves what he teaches, and always trys to get his students interrested in Math, whether it's generating a love of math for the first time in a student, or reminding a student of why they like math in the first place.

1
Easiness
5
Helpfulness
4
Clarity

Although I did not perform up to my potential in his Calculus course, Mr. Barry is one of the single most interesting, educated people I have met in my life. He presents the material with an excitement and passion rivaled only by the best teachers at PA.

1
Easiness
5
Helpfulness
5
Clarity

Mr. Barry is very passionate about mathematics. All his students are honored to have him as a teacher.

1
Easiness
5
Helpfulness
5
Clarity

mr. barry is such an awesome teacher..he's really hard but after his class, you really miss him and realize how great of a guy he is

1
Easiness
5
Helpfulness
5
Clarity

Much better teacher than i originally had though

1
Easiness
5
Helpfulness
5
Clarity

Excellent, excellent teacher. I still can't believe he majored in philosophy. Definitely the best math teacher I've ever had, peerless grasp of the material and awesome presentation. Extremely hard grader, but ensures thorough understanding of material.

1
Easiness
5
Helpfulness
5
Clarity

Great teaching, HARD grading. Math 480.

2
Easiness
4
Helpfulness
5
Clarity

Mr. Barry is an exceptional teacher if, and only if, you are an exceptional math student. I took his math310 class as a Junior, and the class is one of my favorites. However, I have heard many bad things from friends who have taken other of his classes.

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Based on 4,056 Ratings
Phillips Academy is located in Andover, Massachusetts with an average teacher rating of 4.31 stars. When comparing Phillips Academy's teachers to other teachers in the state of Massachusetts, Phillips Academy's teachers are below the average of 4.37 stars. Phillips Academy ranks 108 amongst all High Schools in the state of Massachusetts. Learn More