Made me leave from Computer Scince at Brooklyn College. Sadist, who doesn't know and that is why doesn't explain anything. Horrible teacher, wonder how is allowed to teach?????!!!!! Will remember and curse every time I hear his name!

not clear, boring, hard

for those taking the science section, it is not easy. Though the tests are straight foward, his assignments are very challenging. You will spend days working on some, and unless u got the programming mind, you will have to seek help! But hey, this guy noes a lot and gives very intereting lectures with information pertaining to the real world.

Incomprehensible, assignments weren't clear. Didn't offer any useful help.

He is not worth it. Took him and did horrible despite putting the most effort into his class. By the second exam, 2/3 of the class had dropped, and the 1/2 of the people left did worse than they expected to. he won't ever curve, or do anything in your favor. If you wanna ruin ur gpa then go ahead. Spent 6+ hours on his programs and still got a C+.

no help at all, he explains things a lot then tells you he is not sure if he is right. we learn code in class but never how to trace it but yet the midterm and final is on tracing. barely uses the computer in programing class. just use less

Looking for the worst professor at bc? you have found him!he is the most unreasonable,unhelpful professor whatsoever. There is no review sheets,no help or any information on what you need to know, you wont have any idea how lost you are until you take his exams and fail, I retook it with a better professor and got an A,you been warned.

He has a lot of assignments for you to do. Assignments have nothing related to the exams and we have no review sheet or review exam to prepare for the exams. We are all on our own. He is very unreasonable. Just don't take his classes otherwise you will find out you are wasting your money and time!

most unreasonable a professor can possibly be gives zero partial credit,literally looks for ways he could take off points. From what I understand is that he is only good if you have previous coding experience, otherwise stay away even if Sahni tells you to take him, you can still choose any other professor dont make the mistake i made you will fail

More than half of the class failed. I did everything he asked. But even if my program worked, he would still give me a 60 or 70 penalizing the littlest of things! We don't even do programming in class. He just talks for hours! It's like teaching students to draw w/o letting them draw & giving feedback.

There's a reason most people fail his class. He's really smart, but a good teacher he's not. He lectures for two hours and teaches so little each class. The homework are almost impossible to do based on lectures alone, so you're going to have to go online and teach yourself. If you want to pass and actually learn, I do not suggest him.

Gives no partial credit whatsoever, "If your program is not period correct, then it is wrong," I took this class with another professor and got an A. He is not a good teacher, smart guy for sure though. If Sahni forces you to take him, DO NOT, he will make you fail just like I and many others here have. This professor is ridiculously unreasonable.

Condescending isnt the half of it. It feels like youre trying to talk to a self indulgent deity whos vagueness fits a toddler. His so-called candidness exerts a disgusting attitude that exceeds harsh criticism and is more insulting. Tries to gaslight students and blames them for his lack of specificity. How is he the department chair?

Rude and arrogant. Might give you advice that you don't even ask for, and it's not necessarily a helpful one. Clearly has developed an ability to determine who is smart and who isn't.

I think Langsam really believes he is helping students which is nice but he is one of the most condescending people I have ever met. He has good lectures but when it comes to teaching he offers little support. Strict when it comes to what he wants. He will not answer questions. Start here if you want to see why the CS program is mediocre at best.

He's out of touch, unpleasant, and one of the reasons why I regret coming to bkc for cs. I'm so glad I'm transferring out, most of the profs in the program just do not care.

DO NOT TAKE THIS PROFESSOR I REPEAT DO NOT TAKE!!!!!! LET ME EXPLAIN HE DOES NOT UPLOAD ANYTHING TO BLACKBOARD HE DOES NOT ACCEPT ASSIGNMENT EMAIL FOR EMAIL OR BLACKBOARD HE WANTS ASSIGNMENTS DONE IN A CERTAIN WAY AND IT'S VERY CONDESCENDING ONE OF THE WORLD'S PROFESSORS I HAVE EVER HAD AND THAT SAYS A LOT

My review got removed, wont stop me. He's the reason that there are numerous low rating professors at cs that still have their jobs. dont be fool by the good ratings. if he is so good why is he the only class that is available for this fall? grueling exams, no help, No curves, condescending.dont know how he is chairman, begging u dont take him.

The rudest teacher I have ever had the misfortune of meeting. He is condescending and has zero tolerance for error, while making many mistakes himself. When his expectations aren't met, he makes sure to tell everyone that they should feel bad and to drop out of his class. Don't take him unless you like being treated as a subhuman.

He take too many points off! I make one mistake and get zero . He make me want to go sky . Waste of time ..

I can't understand why he makes us use his personal website over Blackboard. He never updates it and you need to calculate your grade yourself. Not to mention his website is an insult to your eyes. It looks like something a ten year old made for his minecraft server in 2010. How this guy is dept. head while being so behind the times is beyond me.

I knows you've probably read the reviews and thought "but maybe I can do better". You won't. Not only does the professor's demeanor border on intolerably arrogant, his lectures are even less of a help. He will do his best to make you regret taking his class every time you're failed for small syntax errors.

I took this professor and I am coming back to tell y'all don't take this professor unless you are some GENUIS. I took this professor and omg his exam I failed big time, nothing like what he taught in class and he even made some mistakes while grading the exam too like huh??? I wanted to change majors but thank god I retook the class w a better prof

Yedidyah is hilarious and inspirational. Hilariously disrespectful and arrogant, and inspired me to want to swap majors. Complete waste of time. Avoid at all costs.

The bar for teaching CompSci at Brooklyn College must be pretty low if this is the head of the department. What a joke lol.

definitely knowledgeable but his attitude makes his classes unbearable needs an ego check

Despite being an intro class, DO NOT take Langsam if you don't know how to code. He tests you on the least important, smallest details from class. He takes points off the smallest reasons. Even if your program runs 100% fine, you will lose 5-15 points if your code is not to his standard. The homework are all worded weirdly. Just take someone else.

doesn't use an online management system. coding assignments are to be printed. expect to write large programs on paper for exams. docks points for basic syntax errors. just reads off of slides, doesn't really teach. overall, he's old with very outdated concepts towards CS. not a very effective teacher, and has bad bedside manner.

Avoid him and take any other professor. Half of the class failed

You will write code on paper with your pen. Guy is out of this world and will do everything he can to fail you. 10 of my classmates failed this class. The most boring and useless lecture.

He grades very unclear, very easy to make mistakes on the test. written in a way where even if you know the basic idea of the answer, you are given little room for error. all code is to be written on paper yet still takes 10-15 points off per test for syntax errors. Sometimes takes random points off of an exam without a clear reason as towards why

AVOID HIM AT ALL COSTS !!!! HE tries to fail every single student. Too many students failed his class.

NO NO NO don't read these positive reviews because his class is the worst class i even taken. You will never get A or B. If you are lucky, you will get C because his tests are too difficult and have nothing to do with his lectures

Very rude and disrespectful. If you ask him any questions, he will never answer. He will make it look like he didnt see you raising your hand or didnt heare u. Dont take him u will fail

Stay away from this professor you will not learn anything and fail his class

Where do I even begin with Mr. Langsam. I walk away from this class feeling relieved to know that I will never have a professor worse than him ever again. Absolutely avoid him if possible. Unless you are part of the engineering program, in which case you are forced to take him. If you are an engineering student, I will pray for you.

This was honestly one of the worst professors I've ever had in my life. Steer clear unless you want to bomb your GPA.

The absolute worst professor I have ever had. I cannot believe he runs the CS department. I have scored high on every homework, but the midterm is absolutely useless and 75-100 questions on the smallest details learned from the textbook. He is extremely rude and wants you to fail. I have a very high GPA and he is going to tank it. DO NOT TAKE HIM.

If i'm being honest this was probably the worst class i've ever taken that it almost seems predatory that they would have this professor run a needed class for students to graduate from business school. He will not help you, while comp sci is already difficult as it is all he will tell you to do is read the textbook for anything that you need.

The WORST professor ever. Doesn't help you when emailing him and replies in a snarky, demeaning, disrespectful way. Please dont take him!!

As the VICTIM of this... professor, words alone won't suffice to express the suffering one had to endure. I would rather major in art history than ever step foot in any of his classes again, coming from an engineering major. However, I have good news for all of you as we are free from his reign, since he will be retiring soon.

He accepts submissions only be email. Half the time he doesn't get them. When he doesn't get them, you have to email him once a day because he doesn't respond 90% of the time. When he does respond, he is unwilling to grade past submissions. I did all of my assignments days early. All of them were graded as though I'd submitted them late. Don't take

We don't use blackboard in this class. All he does is email and lacks communication with his students. I had trouble using Microsoft Access and he vaguely responded to help me. Then when I got help from a classmate, he wouldn't accept the assignments. Very annoying.

Terrible professor, never responds to emails, even when I reached out multiple times. Assignments were marked as missed, despite me providing clear proof that I submitted them on time. He still refused to grade them. The exams are 100 questions and focused on minor details on the material.