4.5

Joachin Arias

Chemistry - Los Angeles Harbor College

4.5
Quality
2.4
Difficulty
80%
Would Retake
93
Reviews
4.5
Quality
2.4
Difficulty
4.5
Helpful
4.5
Clarity

80%

Would Retake

93

Reviews

Rating Distribution
Official

5

74

4

8

3

5

2

4

1

2

What Students Say

Arias is a pretty cool guy and pretty easy teacher for a chemistry class

CHEM101 - 4.0 rating

Arias is a fantastic chemistry professor and he really wants you to succeed

CHEM65 - 5.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

76%

Textbook Required

75%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 27 grades
Most common grades:
A (14)
B (5)
A+ (4)
Grade Distribution
A(18)B(5)C(2)D(0)F(0)A-/B+(2)
Based on 30 reported grades
A: 14
B: 5
A+: 4
Not sure yet: 3
Common Tags
Hilarious (14)
Amazing lectures (9)
Clear grading criteria (8)
EXTRA CREDIT (7)
Respected (7)
Skip class? You won't pass. (5)
Test heavy (5)
Caring (4)
Rating Trend

Declining

-0.47 avg change
May
Jun
Dec
Jan
Jan
Jun
Last 6 months
Ratings by Course

101

5.0

(2)

122

5.0

(1)

CHEM65

5.0

(10)

CHEM61

5.0

(1)

CHEM0462

5.0

(2)
+12 more courses
Difficulty by Course

CHEM101102

5.0

CHEM221

3.5

CHE101

3.4

101

2.5

CHEM101CHEM102

2.5

Reviews (93)
4.0
2.0
CHEM221
Jul 24, 2007

Very nice to his students. Exams are from his notes. Just study his notes, and attend labs. You will do fine. Highly recommend him to anyone.

5.0
1.0
CHEM65
Feb 2, 2008

Easy A! His tests are made directly from his lecture notes. I don't think I ever opened the book. He made chem simple and easy to understand. Great sense of humor, which made class interesting! Highly recommended!

5.0
1.0
CHEM65
Feb 2, 2008

Easy A! His tests are made directly from his lecture notes. I don't think I ever opened the book. He made chem simple and easy to understand. Great sense of humor, which made class interesting! Highly recommended!

5.0
1.0
CHEM65
Apr 25, 2008

Does anyone have their notes,test, etc. from this chem 65 class? If so contact me and I will pay you for them.

5.0
2.0
CHEM61
Apr 30, 2008

Mr. Arias was extremely helpful during lab class. He went to all students during lab and spent time demonstrating. He also was able to teach the class without a textbook. I really liked his class!!!

1.0
5.0
CHEM221
May 19, 2008

OMG! the hottest teacher ever, i got to class just to see him. OMG, once again. he puts the "h" in hot. anyway, great teacher, clarifies alot but sometimes he is mean. take him if you dare...dare

5.0
2.0
CHEM101
May 28, 2008

I've never enjoyed chemistry so much. Keep up with his lectures and any non-idiot can do well in his class.

5.0
1.0
CHEM102
Jul 18, 2008

Awesome teacher. I failed Chem twice, I wish I had taken him 1st. Answers any questions. Works out problems w/ you, helps to prepare you for tests, only tests on lecture notes. Used book only as a reference & 4 HW. He's big on attendance & keeps class alive. He understands that life happens & helps you move forward.

5.0
1.0
CHEM102
Aug 9, 2008

Without exaggerating, Dr. Arias is, not only the easiest, but one of the best teachers I have ever had. He's funny, witty, incredibly smart, and he loves his students. He knows how to teach and he does it exceptionally. When class ended I was actually very sad it was over. Hardly uses the textbooks, midterms and final was SO easy. Love it.

5.0
1.0
CHEM102
Aug 10, 2008

Best chemistry professor period......

5.0
3.0
CHEM065
Aug 21, 2008

LOVED HIM! HE WAS VERY HELPFUL AND I WAS ACTUALLY ABLE TO UNDERSTABD HIM, UNLIKE OTHER PROFESSORS. LOVED HIS TEACHING TECHNIQUE AND HIS SENSE OF HUMOR!

5.0
3.0
CHEM102
Sep 25, 2008

The best teacher i have ever had. hes so laid back and chill. His notes are the best. I have never had a teacher give better notes. The class was a lot of fun. i was sad when it ended. his quizes help a lot. If u want a good grade be in class. you loose points for not being in lab. You can get a C no sweat at all, b with a little effort, A=hardwork

5.0
2.0
CHEM102
Dec 13, 2008

Take him! you have to! i will bet you a million bucks youll fall in love with him. Hes the best prof ever. hes so laid back, but at the same time if you want to learn something...you will. His labs and lectures are fun. and when the semester ended i was actually sad. It was the best college class i have taken. The class was so much fun, Take HIM!!!

5.0
2.0
CHEM101
Dec 13, 2008

Simply awesome! Hes a very laid back and cool teacher. His tests are fair, and his notes are excellent. Just read his notes and do the hw and youll be fine. There were a few ppl in my class that had over a 100% in the class. U'll actually learn in his class. Hes very Helpful and nice. Hes a lot of fun. not a hard class 2 pass, but u need 2 work 4 A

5.0
3.0
CHEM101
Dec 23, 2008

I was afraid of chemistry, i cant stand it, Dr. Arias made it more easier for me to understand the material!! i left ELAC because chem sucks there. I signed up for Dr. Arias class and he made it more interesting, easier, and he's a down to earth fun guy! i highly recomend Dr. Arias for chemistry! i didnt mind the drive and i dont mind driving far f

5.0
2.0
CHEM102
May 2, 2009

Incredible teacher. He really has a gift for teaching. he interacts with the class and understand the material isnt too interesting. He give clear nots and the tests are straight forward. Best chem teacher Ive had so far.

5.0
2.0
CHEM102
May 14, 2009

He is worth driving in LA traffic during rush hour hands down. Very willing to help especially during lab. Will practically do the lab for you. You don't need the book. Most of his quiz question are from the HW and what you see on the board is what will be on the exam. He has past quizes & exams on reserve at the library.

5.0
1.0
CHEM101
May 26, 2009

I am just finishing up Dr. Arias class right now, he is so dope... Super easy to understand, down to earth, and laid back. Gives tons of extra credit his quizzes and tests are easy as he gives you last years exams to study (he makes the hard questions on last years the easy ones this year...). one of the best teachers i have ever had...

5.0
4.0
CHEM102
Jun 17, 2009

Took Dr A.for both 101 and 102. this guy kicks ass! he teaches and is clear about what he wants u to learn! his deal is to help u pass not to fail u! pay attn though! Dr. Arias Rocks oh and he loves USC Fight on! lol

5.0
3.0
CHEM101
Jul 18, 2009

best chemistry teacher ever he grades very fair and is super cool

5.0
1.0
CHEM0462
Aug 19, 2009

Really cool. he's easy to talk to and easy

5.0
1.0
CHEM65
Sep 4, 2009

He is super nice and is probably the most gracious professor you will ever have. he gives points on the test if you just write something down. he knows your trying, so he is very helpful. extremely clear in his notes, and organized. best teacher ever. i am going to take more chem classes just because he teaches them :)

5.0
1.0
CHEM101
Dec 13, 2009

Good teacher. Dr. Arias is more helpful than any other teachers I've had. And he gives a lot of extra credit and is willing to give you some credit for late work.

5.0
3.0
CHEM065
Dec 15, 2009

Great instructor! Gives out extra credit and a lot of example for you to understand. Labs are fun and he is very helpful as the other lab instructors. Drops two lowest scores on quizzes and half of the final are the same questions from previous exams. Highly recommend. He is not shabby looking to boot ;>

5.0
1.0
CHEM101
Dec 28, 2009

BEST FRACKING TEACHER EVER, HANDS DOWN!!! yep, he's the best! TAKE HIM, I BEG YOU! haha no really...I am serious. *If you dont like his class, you can ~personally~ punch me in the face*

5.0
1.0
CHEM101
Jan 3, 2010

MY OH MY !! the best teacher EVER!! why? because there i cannot find any thing bad about this teacher! everything u want in a teacher, HE HAS!! its just a shame that the class is over and that all teachers are not like ARIAS!! oh yeah you will learn everything you need 2 know!!!

5.0
1.0
CHEM101
Jan 3, 2010

Very chill, easy grading, crystal clear on material , material is so easy to understand because he explains things very well! lecture notes and exams are right to the point, and there is NO BAD THINGS ABOUT THIS TEACHER!! last years exmas and quizzs are posted so you can understand the material better! what else do you want? TAKE HIM!!!!!!!!!!!

5.0
1.0
CHEM065
Jan 6, 2010

take him!! best chem teacher ever. throws in a couple of jokes while lectring which makes this otherwise boring subject more interesting. Take notes and do the homework and you'll get a good grade.

5.0
1.0
CHEM101
Jun 12, 2010

he is the best chem professor . he makes everything easy to understand and gets people interested in his subject. plus he is an easy grader

5.0
2.0
CHEM65
Aug 20, 2010

Very clear and specific lectures, so take good notes. He will help you when you dont understand. He handles questions very effectively. This to me is a boring subject, but he managed to keep it very interesting. There will be about 8 quizes and 4 exams. The two lowest quizes are dropped. You will get an A if you do the homework and study the notes.

5.0
3.0
CHEM65
Aug 26, 2010

One of THE BEST teachers I've had! I enjoyed his lectures and his teaching methods. He is pretty clear with his ways of teaching and a very down to earth which makes students feel comfortable to approach him! I had a lot of fun in his class! Awesome teacher!

5.0
2.0
CHEM65
Aug 26, 2010

Best professor ever! Plus he is Hot. His exams & quizzes are 100% based on his notes. Do the homework to familiarize yourself with the formulas and you're guaranteed an A. I'll be taking more un-needed chem classes just to be privileged with his delightful being. He is awesome! Dr. Arias rocks =)

5.0
1.0
CHEM65
Sep 11, 2010

He's the best!!

5.0
2.0
CHEMI101
Nov 20, 2010

I highly recommend him! i am in chem 211 now and i really miss being in his class. he i the BEST chem professor i have ever had

5.0
2.0
CHE101
Feb 8, 2011

HE is a good professor. One of the best chem teacher in Harbor College. Take him who ever needs this class.

5.0
2.0
CHEM65
Jun 4, 2011

dr. arias should be the god of all chemistry teachers. lecture notes are simple, easy to understand & are right on point. 8 quizzes, 3 exams. he'll walk you step by step before doing the lab so you won't get confused. he's always willing to help. he LOVES to make jokes. he's a cool teacher, DON'T take anyone else for chemistry.

5.0
1.0
CHEM102
Jun 20, 2011

If you take any other prof, that will be your first mistake. He is above and beyond the standard. If every professor was like him, more interest would be built for chemistry. Get to know him cus he is one funny/upbeat guy.

5.0
2.0
CHEM0462
Jul 11, 2011

Chemistry 65- This guy is awesome! He is very helpful, his tests are based on the notes. He has a nice butt, easy on the eyes. This class was very fun and somewhat interesting, I don't know anyone who failed or got anything lower than a C, and those who got a C slacked or didn't show up to class. He's cool to talk to, very funny and sarcastic!

4.0
3.0
CHE101
Sep 2, 2011

Took him in the Fall and was a wonderful chemistry experience. He was fair and funny. His tests are fair. He drops on quiz (and a test i believe?) Only thing that sucks is the lab was before lecture so even if you finish early you couldnt go home :( Take him if you can, you wont regret it! :)

5.0
1.0
CHEM101
Dec 13, 2011

Wonderful teacher. Didn't understand chemistry at all before I took his class. Awesome notes, puts up quiz/exam from previous semesters on class website so you can study from them. Drops two lowest quiz grades. Walks you through labs. Really chill, funny guy. As long as you pay attention and do the work/take advantage of resources, you'll get an A.

5.0
1.0
CHEM0466
May 17, 2012

I really hate Chemistry, but Dr. Arias(Yes Dr. not Mr. or Arias or "Hey Dude"- Please have some courtesy, you are in college now) made it fun. He goes above and beyond what is expected from a teacher. He sponsors the Science Club and is a good friend sometimes on a personal level. I am fortunate to have him as a professor.

5.0
2.0
CHEM102
May 17, 2012

One of the best teachers I've ever had. I hated chemistry before taking his class, now I'm thinking of changing my major.

5.0
3.0
CHEM101
May 30, 2012

Great teacher laid back and really funny. I don't like/understand chemistry to a saddening degree. but he made it understandable enough for me to get a B! Awesome notes! gives you the quizzes/exams from previous semesters so you can study from them. you'll pass as long as you pay attention, do all the work (hw/lab) and take advantage of resources

2.0
1.0
CHEMC101
Dec 23, 2012

He's funny and great but don't take him if ur a science major why?? I got an A because I know this stuff pretty well he's not challenging at all and likes to throw lame jokes. I'm sorry I gotta be honest if u really want to be a science person trust me will be a challenge Arias Kool dude but will not make u strong in chem

5.0
1.0
CHEM65101102
Jul 15, 2013

took him for all my chem classes... he is fair, funny, and very helpful...

5.0
1.0
CHEM65102
Sep 23, 2013

So I pretty much owe this comment to Dr. Arias after taking all three of the classes he teaches. Anyways, he is funny , sarcastic, hilarious, but also very helpful and you will enjoy coming to class just to hear his corny jokes. He provides everything you need to do great in the class, just do your work and you will get your A.

4.0
1.0
CHEM101
Nov 26, 2013

Dr. Arias is a pretty cool guy and pretty easy teacher for a chemistry class. The only thing i can say if you plan on majoring in chemistry, i do not think this will be sufficient preparation for the major so think again before signing up for this class

5.0
1.0
CHEM101
Dec 11, 2013

Best Chemistry teacher out there!!!! His class is easy, as long as you take notes and do the homework.

5.0
1.0
101
May 30, 2014

the best

5.0
1.0
CHEM65102
Jun 12, 2014

Dr. Arias is the best chemistry instructor with the best teaching skills. Also, his class is easy if you really pay attention to his lectures and follow what he says to you to do. Definitely recommended.

5.0
5.0
CHEM101102
Aug 5, 2014

I took him for chem 101 and 102, the exams are pretty hard but he is a pretty lenient grader as long as you try to answer all of the questions on his exam. The lab grade really boosts up your overall grade so don't worry about failing. He's pretty funny and likes to give students corny nicknames.

3.0
1.0
CHEM101
Grade: B
Aug 15, 2014

This professor is down right rude and obnoxious. He jokes around with students and loves to humiliate students in front of the whole class!!!! I wanted to report him to the school because of his horrible attitude towards other students. He loves to feel inferior and put other students down. I hated this class, worst class ever at lahc.

5.0
1.0
CHEM65
Aug 27, 2014

Arias is a fantastic chemistry professor and he really wants you to succeed. If you try/show up for class, you'll get a C. He's also very funny and pretty hot! Good class :).

5.0
1.0
CHEM101
Sep 10, 2014

The guy is effin awesome. Professor Arias is the coolest professor on the campus and his class is easy. If you study the previous quizzes and tests then you'll do fine. I love that he jokes with the students. Someone below says that he makes the students feel inferior, but I think that person can't take a joke. Go get a beer and cheer up !

5.0
2.0
122
Grade: A
May 12, 2015

Do not skip this Professor. By far the best, I learned and I performed well in his tests and MCAT. You do not have to work hard. He makes you understand, STEP BY STEP (Take his notes, study it, do you homework and you will be fine.

5.0
2.0
CHEM101CHEM102
May 16, 2015

The best chemistry professor you'll ever take.

5.0
1.0
CHEM102
Grade: A
Nov 6, 2015

I absolutely hate Chemistry. Going into any profession in the medical field unfortunately involves having to taking some form of Chemistry. With that being said, Dr. Arias by far is one of the best teachers I have ever experienced in my college career. He makes the material easier to comprehend but please note, you have to do the work.

4.0
3.0
CHE101
Grade: A
Dec 16, 2015

Everything that is in his lectures and homework will be on the exam and quiz; there is no surprise. The class is easy if you just study your notes and homework. He posts the previous semester's quizzes and exams so you know what to expect. Great and funny teacher.

5.0
2.0
CHE101
May 26, 2016
Would take again

Professor Arias is by far the best chem professor out there!!!! Everything is straight foward. Study off of pervious quizzes and exams online that he posted. ALSO, Homework helps alot!! Whatever is on the Hw is on the quiz and exam, ESAY A is u put effort into studying.

5.0
4.0
CHEM102
Grade: A
Oct 1, 2016
Would take again

Had him for chem 65 - 102. He teases students, but he does that so you can study, it's not an easy class. For homework, you can write all the answers, he doesn't care because in the end you'll be cheating yourself and it'll show in your scores. The hmwk problems assgned are similar to quizzes and exams. Love this guy, wish he taught ochem :(

Inspirational
Hilarious
Caring
5.0
2.0
CHEM101
Grade: A
Dec 20, 2016
Would take again

Arias is fantastic. super chill and funny. Study the H.W as much as you can as well as the previous tests and quizzes from the semester before that he posts online and he is an easy A :). This class is more about devoting time into studying then actual difficulty.

Clear grading criteria
Hilarious
EXTRA CREDIT
4.0
5.0
CHEM101
Dec 24, 2016
Would take again

Great professor, but don't let his personality swerve you into thinking that he's an easy pushover because he's not. Level of difficulty is inaccurate and I highly question those who stated that he is an "easy A" bc if you thought that he's an easy A, why were you here and not at an Ivy League? Lots of hard work and dedication required to pass.

Tough Grader
LOTS OF HOMEWORK
Hilarious
5.0
4.0
CHEM101
Grade: C
Jan 9, 2017
Would take again

Professor Arias is the BEST Chemistry professor at Harbor College! He has an amazing personality, but will teach Chemistry with humor! Is he tough? Definitely. He will make you work for your grade as he carefully grades every test and quiz! Study the previous tests, quizzes, and do the homework! Every point counts towards the end of the semester!

Tough Grader
TEST HEAVY
Amazing lectures
4.0
3.0
CHEM102
Grade: A
Jan 16, 2017
Would take again

Great professor in terms of calculations but poor professor in terms of understanding the concepts behind the calculations. He is not a tough professor because he provides all materials ( last semester's quizzes and exams with answers) you need to pass his class with an A. I highly recommend using those to prepare yourself for his exams. Take him!

Skip class? You won't pass.
Clear grading criteria
EXTRA CREDIT
5.0
4.0
CHEM102
Grade: Not sure yet
Mar 22, 2017
Would take again

If you have something negative to say about this man its most likely because YOU bombed a test and despite all the points he willingly gave you for attempting it you still did bad. This dude is awesome I took him for 101 and now I'm taking him for 102. He's funny and helpful if you go to office hours. Put in the work and youll get an A

Gives good feedback
Hilarious
EXTRA CREDIT
5.0
5.0
CHE101
May 30, 2017
Would take again

I am awful at chemistry, but he made it bearable through his humor and solid notes. His 101 class made me work for my grade. I struggled a lot and had to rely on the past exams, quizzes, students of his for help. If you have to take a chemistry class, take it with him.

Clear grading criteria
Hilarious
LECTURE HEAVY
5.0
4.0
CHE101
Grade: A+
Dec 1, 2017
Would take again

Best Chem Professor I've ever had. I understood everything he taught because of the good examples he gives and works through. The test are not easy so be prepared to work.

Skip class? You won't pass.
Hilarious
Amazing lectures
5.0
3.0
CHEM102
Dec 20, 2017
Would take again

If you are good at math you will provably find 102 easier than 101. Arias is very straight forward and gives you everything you need to succeed on his tests. Study his in class examples, HW and his last semesters quiz's/exams and you should be fine. There really isn't a reason to get any grade under a B so long as you put in decent effort.

Hilarious
Clear grading criteria
Amazing lectures
5.0
3.0
CHEM101
Grade: A
Dec 20, 2017
Would take again

He's a great prof; teaches well and is funny. He is very understanding and willing to help you if you want to. He is SUPER lenient with grading; gives A lot of partial credit. Tests are doable, quizzes are harder. Take good notes, do the HW, go to office hours, A to B is def doable.

ACCESSIBLE OUTSIDE CLASS
Tests? Not many
Hilarious
4.0
4.0
CHEM101
Grade: A
Jan 8, 2018
Would take again

Tests and quizzes are tough, but you have access to last semester's so definitely study those. Content can be difficult, but he does give you partial credit if you get some of the steps right. HW answers can be copied from the book, but he does pick some of those problems for tests. Lowest 2 quiz scores are dropped. Attend all labs for max points.

Skip class? You won't pass.
TEST HEAVY
Tests are tough
5.0
3.0
CHEM101
May 10, 2019
Would take again

You can really tell that he loves to teach and help out his students. Drops 2 out of the 10 quizzes you take and is generous with partial credit. Lectures are very traditional (with chalk!). Attendance not mandatory, but it helps to get his notes. Study those and the posted quizzes/exams. Extra credit is provided towards the end of the semester!

Gives good feedback
Hilarious
Amazing lectures
5.0
4.0
CHEM101
Grade: B+
May 15, 2019
Would take again

This guy is cool. Like how he condenses chapter into only most important concepts. would take again for 102... but he doesnt teach that currently :/

3.0
1.0
CHEM065
Grade: A
Oct 10, 2019
Wouldn't take again

My only issue with Professor Arias was that he is unfamiliar with how to conduct a proper student-teacher relationship. I heard him use the word retarded as a slur on multiple occasions while joking with students, other than the blatant ableism hes a good professor.

Gives good feedback
Accessible outside class
Clear grading criteria
5.0
3.0
CHEM102
Grade: B
Dec 10, 2019
Would take again

Great professor! Cares for his students and available outside of class. Answers any questions you may have.

Accessible outside class
Skip class? You won't pass.
Amazing lectures
5.0
3.0
CHE101
Grade: A-
May 21, 2020
Would take again

One of the best professors I have ever had. Very funny, caring, and respected. I used to HATE chemistry so much but after taking his class, I actually don't hate it anymore. Professor Arias has great lectures and his exams are exactly what you would expect. Nothing crazy hard. Just what he taught you. I wish he could teach OChem at Harbor too.

Respected
Amazing lectures
Caring
5.0
2.0
CHEM102
Jul 23, 2020
Would take again

He is able to teach the concepts in a way that makes it easy for anyone to understand. He is also very nice and funny. We need more professors like him in this world

Respected
Inspirational
Amazing lectures
5.0
3.0
CHEM101CHEM102
Grade: A+
Aug 6, 2020
Would take again

TAKE HIM. I've had him for both Chem 101 and 102 and I got As both semesters. He makes lectures very fun, easy to understand, and is very understanding and caring. If you do your work and study, you will easily pass. He connects with his students very well. BEST PROFESSOR EVER. I hated Chem before his class. Even during corona, his class is great.

Respected
Hilarious
Amazing lectures
3.0
4.0
CHEM102
Grade: A
Nov 24, 2020
Wouldn't take again

While I did find Dr. Arias to be very knowledgeable. I found the online version of this course lacking effort on his end. More specifically in the lab section. I understand it's impossible to replicate labs in an online format, but Dr. Arias essentially spit back old data from other classes whom actually took the lab in person. Seemed lazy.

Lots of homework
Test heavy
Lecture heavy
5.0
3.0
CHEM102
Dec 15, 2020
Would take again

Dr. Arias is an amazing professor! He really cares for his students and makes class so much fun to be in! Work is standard for chemistry so just do the hw and participate and you'll do fine. Easy to access out of class and will work with you. Recommend 1000/10 and would take for the rest of my chem sequence if possible.

Respected
Inspirational
Amazing lectures
4.0
2.0
CHEM102
Grade: A
Jun 23, 2021
Would take again

Avoid him for remote classes. I think he'd be wonderful in person, but taken remote during the pandemic he was frustratingly disorganized and aloof. Labs were a wast of time--he would just show us raw data from a previous semester and then we'd all do Excel sheets together. Easy grader.

2.0
5.0
CHE101
Sep 22, 2021
Wouldn't take again

He does not give clear lectures; most information is done in drawings for notes, so he is not easy. He instructs an honors class. He is ok and makes movie comments; yet NOT for chemistryHONORS

Get ready to read
Participation matters
2.0
4.0
CHEM101
Grade: Not sure yet
Oct 12, 2021
Wouldn't take again

Dr. Arias is an amusing professor, chill and forgiving with points as long as an attempt was made. However, I find his lectures to be very disorganized. He assumes that his honors students quickly grasp the concepts with his outdated notes that appear to be recycled from previous years. An OK class but be prepared to do a lot of self-teaching.

Get ready to read
Test heavy
5.0
3.0
CHE101
Dec 12, 2021
Would take again

Understanding, not a harsh grader. Explains very well. Stay on top of your things and you should be fine.

3.0
4.0
CHEM101
Grade: A+
Feb 4, 2022
Would take again

You have to work hard for the grade you want in the class. He offers plenty of extra credit given that more than half the class does poorly on the weekly quizzes. He also drops your two lowest quiz scores. Go to office hours for extra clarification.

Gives good feedback
Skip class? You won't pass.
Clear grading criteria
5.0
4.0
101
Grade: A
May 18, 2022
Would take again

There r quizzes every week & homework. Every other week u submit pre- labs, & laboratory reports. Always go to class & watch all the videos he posts on canvas about the lectures. Also, he posts past quizzes so u can have an idea what kind of questions he'll ask for that week's test. Do the Hm before is due it helps when it comes to the actual quiz.

EXTRA CREDIT
Clear grading criteria
Lots of homework
2.0
5.0
CHEM101
Grade: A+
May 28, 2022

He has quizzes and homework every week and usually, he completes teaching the chapter after the quiz on that chapter. He loves tricking his students and all his lectures are word for word copied from youtube videos. Get ready to hear lots of lame dad jokes. The only good thing about him is that he is a lenient grader.

Participation matters
Respected
Test heavy
5.0
2.0
CHEM101CHEM102
Grade: B
Jun 20, 2022
Would take again

Dr. Arias is a well respected professor at LAHC. He has a good sense of humor so taking one of his classes will be fun. If you put in the work, you will get the grade you deserve. Very fair and clear grading criteria. This professor will motivate and inspire you to go after your goals. He really wants his student to succeed in life.

Hilarious
Respected
Accessible outside class
1.0
4.0
CHEM101
Grade: Not sure yet
Dec 19, 2022

Dr. Arias has the knowledge and care for chemistry, though his lectures were lacking. The lectures are fast paced and were hard to follow. He assumes that being an honor course students will grasp on faster, but that was not the case. The concepts should be more thorough and descriptive. You will be self-teaching most concepts if you want to pass.

Respected
Lecture heavy
5.0
3.0
CHE101
Grade: B
Jan 13, 2024
Would take again

His lab was super fun, and he's the funniest professor ever. I miss his class already and I wish him the best. His tests are actually the hardest things in the world but if you do the homework and study ahead of time you will pass. He is very lenient with grading and his class was overall one of my favorite classes of all time.

EXTRA CREDIT
Clear grading criteria
Hilarious
5.0
3.0
CHE101
Grade: A
Jan 15, 2024
Would take again

My favorite professor ever! He is hilarious and has a talent for making students want to come to class. For those who don't go to class, good luck. He's lenient in his grading and is understanding as long as you show up. Drops 2 lowest quizzes. He likes to put a couple trick questions. Gives old quizzes as study guides and study guides for final.

Participation matters
Hilarious
Caring
3.0
4.0
CHE101
Grade: C+
Jan 6, 2025

Uses all his lecture material from youtube videos, he is very easily distracted. Will get off topic a lot of the time, spent majority of the semester talking about his pay check. He does give a lot of extra credit though so that's a good thing, just be ready to teach yourself the entire semester.

Tough grader
Test heavy
5.0
4.0
CHE101
Grade: B
Jan 23, 2025
Would take again

I expected to hate this after the tough first weeks, but I was wrong. If you're showing respect and make an effort, he'll be kind and accommodating. Tests can be scary but the metric tons of xtracredit balances it out. At his core, he cares about his student's success. Some may not prefer this, but if you like a lighthearted prof, you'll like him.

EXTRA CREDIT
Hilarious
Test heavy
5.0
3.0
CHEM101CHEM102
Grade: A
Jun 16, 2025
Would take again

Dr. Arias is a phenomenal professor, both in terms of lectures and in terms of caring for his students. Completely understanding about anything that you're going through and will go out of his way in order to help you. Make sure to do the HW questions as they are directly reflected in the 10 quizzes throughout the semester. Could not recommend more

EXTRA CREDIT
Amazing lectures
Caring
Class Info

Online Classes

100%

Attendance Mandatory

76%

Textbook Required

75%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 27 grades
Most common grades:
A (14)
B (5)
A+ (4)
Grade Distribution
A(18)B(5)C(2)D(0)F(0)A-/B+(2)
Based on 30 reported grades
A: 14
B: 5
A+: 4
Not sure yet: 3
Common Tags
Hilarious (14)
Amazing lectures (9)
Clear grading criteria (8)
EXTRA CREDIT (7)
Respected (7)
Skip class? You won't pass. (5)
Test heavy (5)
Caring (4)
Rating Trend

Declining

-0.47 avg change
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Ratings by Course

101

5.0

(2)

122

5.0

(1)

CHEM65

5.0

(10)

CHEM61

5.0

(1)

CHEM0462

5.0

(2)
+12 more courses
Difficulty by Course

CHEM101102

5.0

CHEM221

3.5

CHE101

3.4

101

2.5

CHEM101CHEM102

2.5

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