Hated the class!! He wasn't very nice or patient and he made everything more difficult than it needed to be.

I would never recommend this teacher to anyone who has a hard time understanding Chemistry. He is not helpful and answers your questions with questions, giving you more questions.

really bad teacher, doesn't know how to teach, we hardly ever used the book. labs were long and useless to learn anything. the chemistry part was the most difficult. you need a good basis on physics and chemistry to do well.

Worst professor in my experience. During lectures, he talkes over his students with multiple akward silences. He writes condescending notes on all returned assignments. Quizes will nip you where it hurts.

This was my hardest class so far. He is so hard to understand and he gets mad if you can't understand something. It's a 100 level class, but he teaches it like it is 300. DO NOT TAKE HIS CLASS!

At first I thought he wanted to see his students do well. Yet in the end you find that he could honestly care less, and enjoys it if you do poorly. DO NOT TAKE HIM YOU WILL REGRET IT!

DO NOT TAKE THIS CLASS! When I would ask questions he made me feel dumb. He would constantly call me out in the middle of the class to point out something stupid I did. He wasn't helpful at all. HORRIBLE!!

This class with this professor is EVIL. Don't expect to get by with the bare minimum on your assignments. When he says what he's grading on, do about 100x more if you want a decent grade. He's not helpful most of the time, he has a bad temper, he talks down to students, and overall I hated the class because of it.

For being a "professional," he is very immature when you question the way he does things. Even told me he wasn't going to talk to me anymore in an email because I was questioning his grading. He picks out people and treats them unfairly based on the fact that he doesn't like them. I really don't know how he was hired by MSUM.

This guy is a horses behind and that's the bottom line. Avoid at all costs unless you like dealing with pompous pricks.

He is very unhelpful and grades based on who agrees with his opinion or not. He has no concern for students feelings or their success in the class. He grades too harshly and believes his way is the only way, so in order to succeed in his class you must pretend he is always right, even though he usually isn't.

This is the worst professor I have ever had. I took the class for dragon core & thought it may also be interesting, but Lahti is a terrible professor for the course. He doesnt explain any assignments, and makes you feel like an idiot when he grades your work. He doesnt care what your opinions are because "he is always right." Dont take his class!

horrible horrible horrible!!! never ever take his class! He is the rudest person I have ever met. Nothing is ever good enough no matter how much time and work you put into class. Some of his rude comments even made me cry.

He has ridiculous expectations. Although he claims he will accept your opinion, he criticizes you to the point where you dont even want to care anymore. It is just shy of impossible to recieve a good grade in that class. I for one asked for help multiple times and all he did was mock me and make me feel stupid. Good class, awful professor.

Test is too long for time given, acts as though the class is a 400 level class, acts as though the students questions are dumb

He makes you feel dumb when you ask a question. He expects you to know what you're doing before it is even taught. He basically said one day our Gen Chem 1 class has no potential when we were talking about potential energy. The only way I'm passing this class right now is from my experience of high school chemistry. Don't take his classes!

The most terrifying, and rude professor I've ever had. I have tried asking questions, and he only makes you feel stupid. I would never take a class from him again. The amount of tears and anxiety I got throughout this course was outrageous.

Bring a tough skin to class; he takes you down a notch each time you ask a question. He's at times rude, but obviously knows the subject matter. Smart guy, just not cut out for teaching or is too burned out (maybe he was less jaded at one time, I'm not sure). I will definitely be avoiding his classes in the future.

Lahti is definitely knowledgeable of the subject, but be prepared to feel like an idiot in his class. He has a way of putting students down when they ask questions. Just have a tough skin and ask questions anyway, otherwise you will not do good in his class. I'm a 4.0 student and BARELY got a B in his class. It's a LOT of work for a 1 credit course

This is by far the worst professor that I've ever had to work with. He constantly belittled students and used any excuse to gloat over his own intellect. The fact that he teaches students how to teach is ironic. I did well in the class, but it was painful to watch him put down other students.

I have been in his class for 3 weeks and it's already gotten to be too much. I literally have never taken a class where so many things get assigned. I only took this class for the goal area 10 and I regret everything!

This professor is downright rude. When you mess up, he doesn't use constructive criticism and tears you apart. He tells you you don't understand anything. He just thinks he is superior to you because he's the professor - but, any professor that treats his students the way he does isn't superior to anyone. 0/10 do not recommend him.

RUDE.

Avoid at all costs!! Disrespectful and I literally learned nothing from his class.

He is extremely arrogant and feels because he is the professor he is better than his students. He does not take into consideration that students may get confused by his explanation of an assignment and when questions arise, he feels it is out of laziness/stupidity on the students part rather than his own lack of understanding and explanation.

STEER CLEAR OF THIS PROFESSOR AT ALL COSTS. 1)Hes the most arrogant professor Ive ever had to deal with. 2)Doesnt care about you or the issues that you may face with his assignments 3)Be ready for him to call you naive for wanting better things in the world. Thought this would be an awesome class, I was very wrong. This class is not worth it!!

Dont take this class. Professor is arrogant and basically calls everyone stupid and lazy. Not professional at all. He assignments are confusing. I have no time for someone who has no self accountability. Im busting my tail to try to get a passing grade. Very disappointed. If I treated my employees the way he treats us I would be unemployed.

I 100% regret taking this class. What a horrible, condescending professor. There is WAY too much homework and things he expects you to know in an ENTRY LEVEL class. I am fuming right now because he expects you to learn so much from his super long lectures and then do his impossible assignments. He deserves to lose his job.

class is an online class over the span of 3 weeks. Copious amounts of homework are expected every 3 days (yes the weekend counts as those days). Very content heavy and tough at grading, has high expectations for such a short period of time. Feels like I am just regurgitating information instead of learning. Do not reccomend.

Avoid at all cost. He's a worst professor ever during my entire life time. Expect your one credit non-major one credit class being tougher than your 300-400 classes. He doesn't care whether you fail the class or not

Worst professor I have ever had. Rude. Does not care about students success at all. Will not be proven wrong even when he is. Very arrogant. Should not even be teaching.

Professor Lahti begins his course with a very defensive tone indicating each semester he spends an inordinate amount of time arguing with students over late, incomplete or assignment grades. This course requires some serious dedication and willingness to jump through hoops. I didn't put in the effort. This is the only course I have ever failed.

Literally the worst professor I've ever had. He never gives you clear instructions on labs and yells at you if you do them wrong. His exams are grading very poorly. He is never available for extra help. He is also super passive aggressive with everything he says even emails.

Horrible Professor. Very passive aggressive and rude towards students. Tests are incredibly difficult, F being the average for most exams. If you have the option not to have this Professor, take that option

This professor was not kind when responding to emails about serious questions within the course. I took this course as a 5-week summer online class which I understand means that it will be packed in, but there was limited to no directions for assignments and he was not very formal or professional when responding to my serious questions.

Lahti is incredibly rude, and often tells students to "get over it". If you do well on assignments he tells you you're "over the top" and "unnecessary". Responds to questions rudely and gets frustrated when you don't understand. Speaks very harshly and HATES when people take notes on computers and regularly calls them out. Wouldn't take him again .

This professor is demeaning and focuses on student's wrong doings than offering constructive feedback or looking at his course structure. His course structure is confusing and with unclear instructions. The feedback that he provides is harsh and can be discouraging rather than constructive.

His grading was awful, or his feedback with his grading I should say. He was so mean and degrading in his feedback. I have never had a professor so mean in my life. He would say stuff in his feedback that didn't even pertain to what he taught you that you were “awful” at. I think maybe he thinks he's being funny, but it isn't working.

This professor has a very I am right and you are wrong mindset, he grades things very harshly and doesn't post information on assignments. He's very judgmental and doesn't respond to emails or asking for help. I do not recommend