1.9

Joel Irish

Mathematics - University of Southern Maine

1.9
Quality
4.5
Difficulty
30%
Would Retake
87
Reviews
1.9
Quality
4.5
Difficulty
1.9
Helpful
1.9
Clarity

30%

Would Retake

87

Reviews

Rating Distribution
Official

5

8

4

6

3

7

2

22

1

44

What Students Say

I'm not a bad math student

MAT152 - 3.0 rating

This guy is terrible, Your pretty much on your own to learn

MAT152C - 1.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

70%

Textbook Required

67%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

C-

68% confidence
Based on 6 grades
Most common grades:
F (3)
Not sure yet (2)
B+ (1)
Grade Distribution
A(1)B(0)C(1)D(1)F(3)A-/B+(1)
Based on 10 reported grades
F: 3
Not sure yet: 2
B+: 1
Rather not say: 1
Common Tags
Tough Grader (4)
Skip class? You won't pass. (3)
Get ready to read (2)
Tough grader (2)
GRADED BY FEW THINGS (1)
TEST HEAVY (1)
Lecture heavy (1)
Graded by few things (1)
Rating Trend

Stable

-0.01 avg change
Feb
Mar
Apr
May
Feb
Apr
Last 6 months
Ratings by Course

CALCA

5.0

(1)

DIFFEQ

4.5

(2)

MAT130

4.0

(1)

COS107

3.0

(1)

MAT145

3.0

(2)
+29 more courses
Difficulty by Course

152

5.0

105D

5.0

CALC

5.0

COS107

5.0

CALCA

5.0

Reviews (87)
3.0
5.0
MAT107
Mar 5, 2003

This is a hard subject to begin with, but be prepared to take is at least a second time. He is unapproachable and teaches to his level, not necessarily the level of his students. He is unapproachable and intimidating. Beware of this guy!

2.0
5.0
MAT101
Mar 5, 2003

ug. he's fast. make sure you know the material because the tests require very much application of the material: in other words, your homework examles are taken further on the tests.

5.0
2.0
MAT105D
Mar 11, 2003

prof. irish is fair. if you do the work and study, and let him know when you are having problems, and when you don't understand something, he'll pass you. i hate math, but it felt doable in this class.

2.0
5.0
MAT105
Mar 14, 2003

Yikes. Moves far too fast & doesn't explain things clearly. Teaches the material differently than the text does.

1.0
5.0
MAT105D
Mar 20, 2003

Very unhelpful, does not like questions, teahces fast, likes group work. do not take this class from him

2.0
5.0
105D
Apr 21, 2003

this guy is really hard. Even if you pass in every homework and go to every class and take every test to the best of your ability, he'll still fail you. I don't recommend taking him.

1.0
5.0
MAT105D
Apr 25, 2003

The material is difficult but he makes it even harder to grasp. Not open to questions...repeatedly says..look in the book or I all ready went over that. Well SORRY I didn't get it the first time around as you went through a chapter in twenty minutes.

1.0
5.0
CALC
Apr 28, 2003

TERRIBLE. Do NOT take this guy. Just read all the other comments.

3.0
5.0
COS107
May 1, 2003

No Comments

2.0
5.0
MAT105D
May 9, 2003

No Comments

2.0
4.0
MAT107
Aug 17, 2003

This is a hard class, but his teaching style made it a little harder. I heard that he was ok with help, but i never went. he kinda scares me.

1.0
4.0
MAT145
Dec 10, 2003

Not very clear, kind of unhelpful. Actual quote to class "I can't explain this to you...you just have to have it in your math suitcase". Huh? Thank god the textbook was good.

1.0
5.0
MATH
Feb 5, 2004

What a freaking nightmare. Now I know what hell is like but I didn't know that the devil taught at USM. :)

4.0
3.0
MAT152
Grade: B+
Mar 8, 2004

Contrary to everyone else, I think Irish is very clear about what he expects of students. If everyone did their homework *ehem*, they wouldn't see any surprises on exams. Plus the quizzes are WAY easier than the homework. An approachable guy.

1.0
5.0
MAT152D
Apr 1, 2004

Unhelpful and can't teach. what is he doing teaching??!! 20 out of 30 failed this class. I retook calculus with someone else and got an A!! Someone should stand up and take notice. Fire this man. The worst teacher I have ever had.

2.0
5.0
MAT152D
May 4, 2004

He's very unconcerned with how students are doing, and seems to favor students that already understand the material. He doesn't like to help those that are struggling or even seem to care if people obviously aren't learning from him.

3.0
5.0
MAT350
Jun 3, 2004

This is a difficult subject he doesn’t make it any easier. The instructor is very demanding. The take home tests are back breaking.

5.0
5.0
CALCA
Jun 17, 2004

Had him 3-4 years ago; great prof, high expectations. Very articulate, explains material well. Learned a lot from his class.

1.0
5.0
MAT153
Aug 25, 2004

Unforgiving

5.0
4.0
MAT145
Sep 9, 2004

Irish is great, very clear. You need to have done well in Math in general up to this class. He wont waste class helping you remeber how to factor or basic mathematical properties. I did fine and loved his teaching style.

1.0
5.0
QUANTMATH
Nov 15, 2004

I don't know if he really knows his subject...he should probably be teaching higher mathematics classes as he cannot connect very well to those who don't already have a good solid handle on the subject. Don't take him if you struggle with math. Should be retired.

3.0
5.0
MAT152
Nov 16, 2004

um...every moment in his class made me wish I was dead.

1.0
3.0
ENG105D
Nov 29, 2004

sent me to a tutor instead of helping me during his office hours. very monotoned and i think i saw him make a facial expression twice all semester. needs to retire.

1.0
5.0
MAT105D
Mar 7, 2005

he is the worst teacher i have ever had, on our first test 2 people scored above 90, a few around 80 and the rest were in the 40-50 range, what does that tell you?!?! he doesn't explain anything at all. he should be teaching upper level classes not this one!

1.0
5.0
QUANTDEC
Apr 11, 2005

He reminds me of Ben Stein on Ferris Buellers Day Off

1.0
5.0
MAT108
May 5, 2005

Do not take this class if you if math is not your thing. This guy is mr. rogers w/o the friendliness and ben stein put into a blender. Even with putting in hours of work a week, i took a test and it might as well have been in chinese. He made the concepts much harder then needed to be.

2.0
5.0
MAT108
May 13, 2005

Quizzes every class were fine, but the exams had material that was way harder than the quizzes or homework. I just had bad luck with taking this math course at USM. I had Paras and this guy. My advice is to talk with your advisor and take this at SMCC. It's not right if I need tutoring if I do my HW

1.0
5.0
MAT108
Jun 15, 2005

Do not take this class if you struggle with math whatsoever..has no time for students that ask questions and tends to relate to lifetime experiences wayyy too much...lets just say there were six people left to take the final and during the final two got up and left!! Great teaching!

1.0
5.0
MAT152D
Jun 24, 2005

Sometimes during class I dreamed of taking my pencil and jabbing out my eyes just to make things a little more interesting. Worste class ever. Stay as far away from this guy as possible.

1.0
5.0
CALCULUS
Aug 31, 2005

my class started at 40 people and finished with 8 and of that 8 probably only 1 passed. he tried to get you to drop. he is the worst teacher i have ever had.

1.0
5.0
ALGEBRA
Sep 22, 2005

do not take, very very boring!!!

4.0
2.0
MATH
Oct 6, 2005

I'm really bad at math and I actually understand a lot of what he says. i've never done so well in math before, I've gotten 100s on everything.

1.0
5.0
MAT150
Oct 8, 2005

Very hard to learn from this guy.

2.0
5.0
152
Oct 20, 2005

Really hard to understand the way he teaches, i find myself learning more from the book.

1.0
5.0
QUANTDECMAKIN
Nov 16, 2005

After 5 years in college, I have never come across as WORSE of a professor as Irish. DO NOT take him if you are not good in math... if you already have.. Im so sorry but I feel your pain!

2.0
4.0
MAT105D
Jan 26, 2006

he is very condescending. quizes and tests are much more difficult than the textbook. his voice is extremely monotone and he gets annoyed when people have questions

4.0
5.0
DIFFEQ
Feb 14, 2006

He assigns lots of work and means business. You earn every grade in his class, there are no handouts. Be prepared to work a lot, and learn a lot. While lectures are kind of drab, he is very meticulous, shows you how to use technology, and has students present projects. I liked this class a lot.

2.0
4.0
MAT105
Apr 11, 2006

do not like this professor at all. very hard to learn from. i have other friends help me rather than ask him questions.

5.0
4.0
MAT152
Oct 4, 2006

Professor Irish's class is not easy, but I found him to be patient and knowledgeable, and always has office hours available for one-on-one explanation if you get lost. I really do not understand student's difficulty with him.

1.0
5.0
MAT108
Oct 23, 2006

worse professor/teacher ive ever had. can't stay awake in class an tests/quizzes are much harder than text. if you have this man switch!

5.0
4.0
DIFFEQ
Oct 24, 2006

No Comments

1.0
5.0
MAT105D
Nov 7, 2006

a good teacher if you want to learn upper level mathematics, otherwise completely ineffective.

1.0
5.0
MAT105D
Nov 11, 2006

I think thet Irish is the worst math teacher that Ive ever had in my life. He does not teach on a level that students can learn easily, almost as if hes too smart to be teaching the class. I HIGHLY Suggest dropping this course if you have him, or switch to another teacher. Quizzes are tough, and dont usually relate to things discussed in class.

3.0
3.0
MAT101
Nov 17, 2006

hes not a bad teacher its just no one teaches like him anymore. the class is only hard to some students because they do not do the homework. keep up with your homework and get help if you get him. his class is a bit more challenging so if you dont like math find somebody else

1.0
5.0
MAT105
Nov 27, 2006

Irish is a very boring guy. Everyday he comes in with his brown shirt tucked into his tan pants (if youre lucky he may wear a brown sweater instead.) He teaches simple concepts with hard to understand methods, and when he askes the class a question, you better hope the smart kid in the class answers, cause he will hunt down random people to ask.

1.0
5.0
MAT108
Nov 28, 2006

easily the worst teacher ive ever had..immpossible to comprehend his lessons....classes are irrelevant to tests and quizes...annoying to listen to...class/teacher the worst..yuuup..BALLLLLLINNNNNNN

2.0
5.0
MAT105D
Dec 1, 2006

An awful teacher. Didn't understand math wish I dropped it. By far the WORST class i've ever taken

1.0
5.0
MAT105D
Dec 7, 2006

Horrible!!!

4.0
1.0
MAT130
Dec 10, 2006

This class seemed pretty easy to me. Its a bunch of common knowledge math. I never opened the book for a homework assignment. Just do good on 5 out of the 9 quizzes and get a passing grade on the tests and youre set.

1.0
5.0
MAT101
Dec 11, 2006

don't expect to pass unless your good at teching yourself everything..............

4.0
4.0
MAT152D
Jan 21, 2007

I disagree with the other people, however I took a different class than the others. (Calc A) I thought he was interesting and friendly. He always tried to give real life examples too, which is much appriciated in a math class.

3.0
3.0
MAT105
Apr 29, 2007

boring teaching style...everyone in my class was bored to death, hated the class, and found him hard to understand.

5.0
2.0
MAT350
May 16, 2007

Very clear, understandable, and caring professor. He will answer any question you have, and if you guys claim that you don't understand him, then you won't understand any math teacher at USM. He is one of the best! If you don't like to work and think about an easy grade, then simply don't take the class, don't blame professor for your laziness.

1.0
5.0
MATH105
Oct 16, 2007

Im in the middle of the class right now and hate it. i did extremely well in algebra in high school but he makes it incredibly hard. DO NOT HAVE MATH WITH THIS TEACHER!

2.0
5.0
MATH110
Oct 17, 2007

This professor is too smart for his own good, and should realize that all of his students don't have a doctorate in math like he does. The material covered on quizzes is far more difficult than problems you'll face in the book. Prepare for the worst.

2.0
5.0
MAT105D
Nov 6, 2007

This dude's monotone uninteresting way of teaching is unbearable. Not to mention he is a crazy hard grader, I'm talking NO extra credit. In class one day he talked down to a few students because of some questions they asked, it was unprofessional how impatient he was with them; he also claims there is no such thing as a stupid question. Avoid him!

1.0
5.0
MAT105D
Nov 20, 2007

He's at TERRIBLE teacher. I am certainly not a lazy student, and no matter what I do I can't get a good grade in his class. DO NOT TAKE A CLASS WITH JOEL IRISH! He is by FAR the worst teacher I've ever had. His quizzes and tests are not like anything on the homework or what he "discusses" in class. TERRIBLE.

5.0
2.0
MAT105D
Dec 8, 2007

Prof. Irish is really nice. If you havent learned the material beforehand then you might have a hard time understanding it. He is very smart and helpful. The quiz questions come right out of the homework assignments, so although doing the homework is not mandatory, if you want to do well on the quiz, I would suggest doing it. GREAT TEACHER!

2.0
4.0
MAT105D
Dec 10, 2007

No Comments

2.0
4.0
MAT108
Apr 11, 2008

Dr. Irish is a very intelligent mathematician, and expects his students to be as well. He knows everything there is to know about mathematics, but has a hard time making it understandable for his students.

2.0
5.0
MAT105D
Apr 21, 2008

smart guy. knows his stuff. text and quiz are a pain. throws a lot of stuff at you in a short amount of time. EXTREMELY boring. the guy put me to sleep half the time. would not recomend him.

1.0
5.0
LECMAT
Feb 1, 2009

This is the ugliest and bad person I have ever seen

1.0
5.0
MATH150D
Apr 26, 2009

Joel Irish is probably the worst teacher i have ever had. He thinks math is the coolest thing since sliced bread. If you want to fail, take this class. You have no hope in passing this class unless your a math nerd who has no life.. He does not care about his students. Everyone fails the class, what a GREAT teacher... NOT

1.0
5.0
MATH150D
Apr 26, 2009

70% fail rate... Just drop out of college than take joel irish

1.0
5.0
MATH148
May 13, 2009

I stayed in his class because I thought I had a chance. Thats the dumbest thing I've ever done. There were 33 people at the start of the semester, and at the end I think there were 12 people in class. Only two people have a chance of passing. I even went to a tudor at least once a week. He should not be teaching!!!!

3.0
5.0
MAT152
Jul 9, 2009

I'm not a bad math student.I got an F in his class and a B+ in Maurice Chabot's class.Huh, wonder who's the common denominator? Do the math ppl, DON'T TAKE HIM!!

1.0
5.0
MAT105D
Dec 8, 2009

Wow, what everyone said is spot on. I am not bad in math but I got a D in his class. Everyone in my class dropped out of it half way through? Why do we pay money for teachers who suck and try to fail students?

2.0
5.0
CALC321
Jan 19, 2010

He is out of his mind, expects everyone to be a genius in math. Quizzes are unreal hard and once a week, problems are a lot harder then problems he teaches. A lot of people fail his class. If your not good in math don't waste your time or money, You will not pass.

5.0
3.0
MAT105D
Jan 20, 2010

I LOVED my math class with Irish. If you do the work and even know a tiny bit about math, you'll probably love it too. He explains well and grades very fairly. Only the top 10 quiz grades are kept and you have one every week. If I could take another class with him I definitely would!

1.0
5.0
MAT152C
Apr 27, 2010

This guy is terrible, Your pretty much on your own to learn. Be ready for allot of your own time for understanding the material, because he is no help. Also to add to it his voice is so mono-tone it puts you to sleep after 20 or so minuets. So if you decide on this endeavour, GOOD LUCK . . .

2.0
5.0
MAT148D
May 20, 2010

Take CalcA instead if you can, he completely misses the point in this non-math major math class... he teaches it as if he's dealing with math majors... you can understand every principle of the course and how to use them and fail the course... i will say that if i were a math major he would probably be one of my favorite personalities...

4.0
3.0
MAT152D
Jan 28, 2011

Though I've just started the class, I really like him so far. It's a tough class and it's very work intensive but if you work hard and do the homework you should be all set. He grades fairly and will gladly help you if you need it.

1.0
5.0
MAT148D
Apr 12, 2011

This guys knows nothing about teaching. He teaches you steps 5-10, and completely skips out on steps 1-4. He expects everyone to be good at algebra, and doesn't explain why you do things a certain way or why they apply. To make it even better he even teaches you stuff about calc 2 and 3 when your in calc 1. He is usless and a waste of money/time!

1.0
5.0
MAT140
Apr 12, 2011

Terrible teacher. too smart for his own good. the class has shrunk to nothing. passed out the first test and about 5 people packed up and left. we got the tests back the next day, and the class after, less than half showed up. majority failed, and even the few who figured they'd stick it out is on the edge of failing. don't put yourself through it.

2.0
5.0
MAT152
Apr 13, 2011

He does not explain himself very well. It takes him about ten minutes or longer to get to the point. I have another class the same length where way more material is covered. I would not recommend him in at all. In fact, if you're required to take calculus I would highly suggest taking it at another school.

1.0
5.0
MAT152
Dec 3, 2013

Worst class I have ever taken. I got a D in the class, the first D of my life, including tests or papers, and I'm a senior in college. I had a 99 on the homework and nothing higher than a 45 on the tests, hmm.. wonder what the problem is there. Retook at SMCC and got an A-, but have to retake again here to graduate, definitely not taking him.

2.0
5.0
MAT350
Grade: Rather not say
Feb 4, 2016

AWFUL. If you already know the material you may have a chance. If you expect him to actually teach you anything at all, you're already screwed. He gives weekly exams, so he is just a glorified proctor who DOES NOT give partial credit and is very nit picky about small details, like a missing negative sign- he will fail you! Literally the worst.

1.0
4.0
MAT350
Grade: Not sure yet
Feb 15, 2017
Wouldn't take again

Terrible, I've never had a professor that I couldn't understand and keep up with but he makes no sense when he talks. He goes far to fast and just endlessly talks but explains nothing.

Tough Grader
Skip class? You won't pass.
GRADED BY FEW THINGS
2.0
4.0
MAT350
Grade: F
Mar 17, 2018
Would take again

I completed the assignment without differential equations and he refused to read it. He does not have respect for the intellectual merit of your work. He will dog you on sign errors. You don't need Diff Eq. to get a PhD in math: its a trap.

2.0
5.0
MAT152
Grade: Not sure yet
Apr 16, 2018
Wouldn't take again

Only a few people in class are able to keep up with this professor. The rest of us will have to retake the class. He relies on MyMathLab for his weekly quizzes, which only shows you got a question wrong and not why. So don't expect any good feedback. He also acts like every person has mastered all material preceding his class.

Tough Grader
TEST HEAVY
1.0
5.0
MAT350
Apr 16, 2018
Wouldn't take again

Terrible. Moves through the book at a breakneck pace, without teaching the material in lectures. Weekly quizzes take hours, exams are absurdly hard. If problems are introduced in class he shows step 1 and 2, says we've seen this before, skips to 11 and 12, saying we can figure out how to finish. If you can teach yourself quickly, you might be okay.

Tough Grader
Skip class? You won't pass.
1.0
4.0
MAT350
Apr 16, 2018
Wouldn't take again

This class is geared more towards engineers than math majors. For this class, you might as well plan time for teaching yourself with youtube videos. The course material isn't hard but the way that Irish teaches it is not helpful.

Tough Grader
Get ready to read
Skip class? You won't pass.
1.0
4.0
MAT350
Grade: F
May 9, 2018
Wouldn't take again

The course is taught at 8am. The role of the course is to dirsupt the brain by sleep deprivation and stress while it is still developing. This is Joel's role in the university system.

1.0
2.0
MAT350
Grade: F
Feb 12, 2019
Would take again

He landed a hit order on my career by giving me 0 points for a precalculus growth-and-decay solution.

1.0
5.0
MAT152
Grade: Drop/Withdrawal
Apr 10, 2019
Wouldn't take again

The toughest Professor I had ever taken.I have never had to drop a class until I took this course. He knows math well, but he does not teach well. He had no office hours to help students who needed more help. Extremely hard grader. Will give you a wrong answer for (-/+) mistakes. No partial credit. If you complete this course, you deserve an A.

Get ready to read
Lecture heavy
Tough grader
1.0
2.0
MAT350
Grade: A
Apr 11, 2019
Would take again

Hasn't read mathematics for 20 or more years. Therefore, he doesn't have the right to teach DIfferential Equations.

1.0
5.0
MAT152
Grade: C-
Apr 15, 2019
Wouldn't take again

Professor Irish does not take the time to get to know his students or help them. Out of two exams, almost everyone failed both exams, but he only gave us an opportunity to improve our grades on one of the exams. Be warned, hes not very clear on his grading policy. It will be in your best interest to complete all quizzes. And get a tutor too!

Graded by few things
Test heavy
Tough grader
Class Info

Online Classes

100%

Attendance Mandatory

70%

Textbook Required

67%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

C-

68% confidence
Based on 6 grades
Most common grades:
F (3)
Not sure yet (2)
B+ (1)
Grade Distribution
A(1)B(0)C(1)D(1)F(3)A-/B+(1)
Based on 10 reported grades
F: 3
Not sure yet: 2
B+: 1
Rather not say: 1
Common Tags
Tough Grader (4)
Skip class? You won't pass. (3)
Get ready to read (2)
Tough grader (2)
GRADED BY FEW THINGS (1)
TEST HEAVY (1)
Lecture heavy (1)
Graded by few things (1)
Rating Trend

Stable

-0.01 avg change
Feb
Mar
Apr
May
Feb
Apr
Last 6 months
Ratings by Course

CALCA

5.0

(1)

DIFFEQ

4.5

(2)

MAT130

4.0

(1)

COS107

3.0

(1)

MAT145

3.0

(2)
+29 more courses
Difficulty by Course

152

5.0

105D

5.0

CALC

5.0

COS107

5.0

CALCA

5.0

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