Poor communication skills

Hard to understand, boring

no calcs, hard tests, mean-spirited, wants u to fail

mumbles. doesn't cover everything.tests hard.

He is just a sucker. It seems he came to teach with personal intention. He wants everybody to fail. He is just wrong to be a teacher. Thanks for the F sucker. I aced both calc 1 and 2 but failed his because he is an id...

only take this class if you feel like listening to a man who cannot speak english,likes teaching history, and supposed to be teaching math. Does not know what an octagon is! what the f?

He sucks ... I used to hate Math before, i hate it even more now. Dont take him ... he's confusing and doesnt know what the **** he's saying.

Currently, I am failing his class. He is a horrible teacher, who seems to be a better wood carver than a teacher. Whatever you do, do not take this teacher. If you are in ROTC, get out of his class because he hates the military and those who are in it.

One of the two worst professors I ever had. I took him for finite math. I failed it with him. Then I took the class over with a different professor and got an A. I also got Bs in both calc 1 and calc 2. He can't speak english, and he doesn't care!!!!

Listen hard. Really hard. He has a hard time pronouncing numbers. Don't sit in front. He'll spit on you.

NEVERRRRRRRRRRR TAKE HIS CLASS....easy 'F' is what his class is! I am reapeating CAL3!! because of him..word of advice and only one word my friends DONT!

Katsura=kermit + yoda. If you like to work really hard and then recieve a D and repeat a class again, then by all means take this guy. I highly reccomend Obaid(the guy not the girl).

anybody who refers to a parallelogram (or should i say pararrerogram) as a "squash box" needs to be taking an english class instead of teaching math. worst teacher ive ever had

Very hard to understand because of his heavy accent. He doesn't help anyone. He completely screws up any understanding of basic math you have.

This teacher is very hard to understand and very hard on you. I did some homework in his class, and got everthing right. I got a D on it bc I didnt include equal signs in my work for 3 problems. this guy is an ****

hard to understand,doesn't teach with the book, it very anal about everything. I would do better just learning through the book myself. Worst teacher ever

One of the worst teachers/professors i've ever had. Most of my class is failing his course now. We're drowning and there's nothing we can do about it now. Save yourself, don't take him for any class unless you want to waste a semester.

he is a big time jerk. he will make you feel stupid in his class if you don't know the answer to a question. REALLY HARD just because he want to be, and DO NOT TAKE HIM unless you want to fail!!! I REPEAT DON'T TAKE HIM.

The WORST teacher i had ever had. Stay away from him. He loves to fail people

Well, most my class is failing, and half just gave up and stopped coming to class. We are all drowning in his class and there's nothing we can do about it. Take this professor if you would like to drop your GPA.

DO NOT TAKE UNLESS YOU WANT TO FAIL!!!! STUDENTS HAVE A LOT OF NEGATIVE THINGS TO SAY ABOUT HIM. THE SITE KEEPS DELETEING EVERYONE COMMENTS ABOUT HIM. DO NOT TRUST THE SIMLIY FACES, THEY CAN BE QUITE DECIVING.

He'll straight up wail on you fool!!

THE worst teacher I've ever had at SJSU. Avoid taking his class unless: 1. You enjoy a low GPA and grades of F 2. You have absolutely no other choice. 3. You are out of your mind

This professor is awful. It makes you wonder how he is able to keep his job at SJSU. His grading is ridiculous; I got 2 points marked off for not putting an EQUAL sign. Yes, people, this guy is crazy. Moreover, his tests are VERY difficult. And he isn't very helpful.

Do not take this class with this teacher. He has a bad accent, grades unfair, and makes up his test out of no where. You must do things how he teaches or the answer is wrong. The tests are over 100 pts, but only like 7 questions. DO NOT TAKE HIM!!! yOU WILL REGRET IT.

Rediculously Difficult. Nothing but absolute perfection gets credit in his class. The slightest error in a test problem gets you half credit or worse. Katsuura does not seem to realize that diff eq is not an easy subject and he teaches like we've all been through it before. An obviously intelligent man, but a horrible teacher.

DO NOT TAKE ANY CLASS WITH THIS GUY!IF YOU DO YOU WANT A BAD GRADE.ONE OF THE WORST TEACHERS ON THE PLANET IN MY OPINION!HE PUTS PEOPLE DOWN IN FRONT OF THE WHOLE CLASS FOR GETTING BAD GRADES, EXAMS R HARD,DOESN'T WANT TO HELP&IS THE MOST CONFUSING LECTURER...HE SUCKS!HE HAS A HARD TO UNDERSTAND ACCENT TOO.I HAVE NO IDEA HOW ELSE TO WARN YOU GUYS.

Plain and simple : THE WORST TEACHER I HAVE EVER HAD!!! DO NOT TAKE ANY COURSE WITH THIS IDIOTIC TEACHER!!! WARNING!!!

He has to be the most unhelpful teacher I've ever had. He has no idea the status of his book for his class (update versions, old copies, etc) he constantly is saying to ignore what is in the book and do it his way, but then is unclear in explaining how to do things. Do not take him unless you are a genius already...

horrible. you will regret signing up for his class. take anyone else!!!

very HARD!!!! i only got stuck with this teacher because there was no one left. avoid him, no joke

I am getting a B+ in the class but I will highly suggest everybody not to take his class. He is so not clear in any of the topics that it is not a joke. The main problem is that he teaches at a 100 miles an hour.

He is a horrible teacher. doesn't explain any thing and hard to understand at times with his accent. test are ****in hard and gives a**** load of homework.

STAY AWAY if you don't want ot fail. class is extremely difficult. u basically need to learn everything on your own. not recommended unless you are a math genuis.

This is by far the worst teacher i had at sjsu. He is very mean and his tests are extremely hard. I studied like crazy and was getting 17/100 on the tests. I wish i had dropped this class in time. Eventually, half the class stops going because they know they are going to fail. If you want to lower your gpa, take this class. Trust me, dont tak

Don't bother taking Katsurra. He's by far my hardest teacher so far in SJSU and he will kill you during the semester. He explains his own strategies and he never follows the book. It's hard too because I would never understand anything he says and his complicated theories. Don't take him!!

I am an amazing student with wonderful grades. This class is by far the hardest class i have taken at SJSU! Katsuura gave me a C- in his course knowing i am a bussiness major that has to recieve a C or higher to pass. I NEVER missed one class and did ALL of the assigned homework, which we got EVERY class! DO NOT DO NOT DO NOT take this teacher!!!!

You will fail this class for sure. My first exam i got a 17/100 and my smart friend got a 31/100. Half the class stopped showing up midway through the semester. He usually gives about 30 h.w. problems to do and will choose 2 to grade. Usually, i didn't get credit for any of the problems. And this is coming from a guy who got a 3.84 GPA in H.S.

This guys really sucks. DO NOT TAKE HIS CLASS. He is such a moron, he tells us not to read the book but still understand the material. I don't know what he's thinkin but you have to be complete idiot to tell your students that. Well if you have him for any class, don't take him. His accent is confusing... well everything about him is confusing.

this guy sucks. its ironic how he wants you yo be all perfect on his test but when hes teaching you new material he makes mistakes and the students are always correcting him. just avoid this teacher if u dont want a bad college experience. on and one more thing 65% of the class are failing.

This is the type of instructor to dread taking. He completely ignores student questions when asking for clarification and spends 95% of the time lecturing while facing the whiteboard. Avoid at all costs.

Worst teacher at SJSU. Very bad grader. He wont read any proof if he doesn't like the first line. Even though his English is pretty bad but he expects students to be a maestro in it !

Terrible teacher, I tired soo hard in that class and got nothing. His grading is SOO BAD, not a fair teacher. like what everyone has said,DONT get him. o yea he can't speak English at all, but expects you to and marks you down if you don't. so yea DONT GET HIM!

Professor is so so so so bad at teaching, I have no idea why the school still keeps this professor.

If you have to take Math 70 at San Jose State, don't take it with Mr. Katsuura. In my class more than half the class has either dropped, or just decided to take a F. He often gives homework, and when we come back to ask him questions about the problems he can't figure it out, or he says he assigned us that problem by mistake.

Worst teacher at SJSU. Took him spring 07, dropped the class with a W, took the same class, different teacher, coming out with most likely an A. Cannot understand this guy. Horrible with helping. Does not answer questions. Does not explain anything clearly. STAY AWAY!

horrible lecturer. does not teach from the book at all. he needs to have his own book to explain his lesson plan further but he doesn't do so. he hardly makes time for students in office hours unless they're independent studiers. he has dumb pop quizzes and doesn't really grade hw. goes by too fast. the list goes on...

this guy is ok but not great if you really want to pass his class i recomend that you get another guy but if you want to fail you can have it my friends and i had to suck up and go to his office hours daily..it isn't a good sign when a student has to go to him all the time for help at everysingle office hours i should be able to do this by myself.

Not very good.

DO NOT TAKE HIS CLASS EVER PERIOD IF YOU ARE INTERESTED IN LEARNING.WHO HIRED THIS INCOMPETENT NON-TEACHING S.O.B THIS GUY SHOULD BE FIRED AND SHUNNED FROM SAN JOSE STATE UNIVERSITY OR ANY SCHOOL FOR THAT MATTER...HE IS A TEACHER BY TITLE BUT HE TEACHES NOTHING AND EXPECTS YOU TO UNDERSTAND..SOMEBODY SHOULD SIT IN ON THIS GUY AND REPORT HIM

don't take him

Terrible Teacher. Basically talks to himself while staring at the board. Has somewhat of an accent. Shows up and writes on the board then leaves. Quiz's every week!

Teacher is very hard to understand. Homework is not collected, although he does give you practice problems to work on. He gives daily quizzes. Tests are very difficult. Concepts are also very hard to understand. Dont take this class @ 7:30 in the morning.

Very cute professor but he is the hardest teacher EVER!! i never failed a class in my life and he was the first person to fail me. Inconsistent test and his final is almost impossible to pass

Do NOT take him. Even if you try, he will not help you. I asked many times for him to do some complicated hw probs on the board and he not only did them wrong, he either couldn't figure out how or didn't care to fix his mistakes. There is no point in paying this guy to teach, because you will end up doing it yourself. Take someone else. Seriously.

Please do not take him. I barely passed calc 3... never lot lower than A in my math classes. DO NOT TAKE HIM............

By far the worst math teacher I have ever had. His class is incredibly hard and most students fail thats why he sets the curve so low (55%=C) Even with that over half the class still fails. Do not take even as a last resort

Worst professor I've ever had. He is unclear and very confusing. He likes to talk about his dumb stories about the space and astronomy which does not relate to the topic at hand. He also throws a lot of curve balls at you during the midterm making you have you fully understand the material.

He's a very smart guy that's really enthusiastic about the material, but he's not very good at teaching. His lectures aren't structured well and he tends to ramble on about things that you won't find on the homework or daily quizzes. Teaches new concepts like he's reviewing them. The ridiculous curve is the only reason anyone can pass

Lectures are disorganized. Quizzes are on every class day except for midterms. Midterms are extremely difficult. Final is more difficult than the midterms. Curve is extremely ridiculous. He makes this class much harder as it should not be. Heed my warnings because he costed me another semester. DO NOT take him, DROP any of his course if you can.

The WORST professor I have ever had at SJSU. His teaching methods are very unclear and he's very unhelpful. He only teaches to get paid. Quizzes are practically every week. The exams are SUPER hard. He expects you to remember what you learned in your previous calculus classes and does not review the material. Just awful. Avoid his class at all cost

I knew the basic knowledge about Calc but Katsuura is a crazy guy. He always goes over things fast, talks to the board and doesn't collect homework or provides any gradebooster. I tried hard, attended every lecture but he still failed me w a C- He teaches the easy parts and gives the super difficult parts on quizzes and tests. What a troll...

You must go to class. It is his way or the highway and he does not follow the book at all. He will tell you that a topic will not be on the test, only to find out on test day that it is there, so do not believe him. Don't even think about using a graphing calculator in this class because he hardly allows a scientific one. Tests were very hard

You must go to class. He will tell you that a topic will not be on the test, only to find out on test day that it is there, so do not believe him. Don't even think about using a graphing calculator in this class because he hardly allows a scientific one. Tests were very hard, luckily he curves, even then, 13 of the class got below 35%

Do not take this class with this professor. Having a bit of a background in math, I can tell that this professor knows the material. However, the way he presents it is atrocious. Offers zero help during office hours and makes you feel bad for even asking for help. Do not take with him unless you have previous understanding of calculus basics.

Katsuura gives confusing lectures and difficult quizzes every week. Test are very difficult and if you try to ask for help he won't offer any and will make you feel bad for even asking. Refuses to give clear material to study, unless you have a previous background in Calc or are good at teaching yourself you probably won't pass. AVOID

DO NOT TAKE THIS TEACHER. HARD QUIZZES EVERY WEEK. HARD GRADER. DOESNT KNOW HOW TO TEACH. GRADE IS DEPENDENT ON MIDTERMS AND QUIZZES.

This class is so stressful with him. The material is easy, but the way he wants it is difficult. Tests were convoluted. Expect lots of quizzes. He likes to go fast.

Tough tests, hard to understand in lectures as he doesn't really go in depth what the textbook says, and uses his own terminologies and methods. He doesn't assign homework, but there are pop quizzes almost every week so you are forced to go to class. Doesn't let you make up or retake quizzes or tests either. No extra credit available.

There are quizzes once a week and quiz scores are worth as much as one exam. His lectures only cover certain aspects of the section in his textbook, so read the book and do as many problems as possible. Go to office hours if you have a question. You need a 48% to pass but most of the people in class are in the D or C range for just the quizzes.

Worst professor ever. Its hard to understand and not one part of the class is he teaching anything all he does are random problems without explaination.

completely unhelpful on purpose

He's the worst professor I've ever had. He does random problems during lecture and doesn't explain them. He won't tell you the grade you have the entire semester and he's so specific on what he wants on exams and he'll take off a lot of points if you don't write it the exact way he wants.

He is very picky when it comes to the way you format things on a quiz/test. (He will dock off points) Majority of his lectures doesn't make sense, since he just does random problems from the textbook without explaining how he got the answer. He overcomplicates the problems, so you'll end up even more confused after his lectures.

MATH 30! He is very picky on quizzes/exams (will dock). His lectures consist of practice problems from textbook. He just jumps into the lesson without context, very confusing. He skips too many steps when demonstrating.3 exams, quizzes every week (makes up midterm), and final. Homework is not required. I am an A student for math. Not with him!!

Super picky and grades tests/quizzes if you don't format it the way he teaches it. Which is why you have to go to class to learn the way he teaches them so you can get a least a decent grade on the quizzes and exams. But either way his teaching is horrible. Take any other professor

Very picky when it comes to grading, if you dont do it his way (even if easier methods are available), he'll fail youi. Doesn't assign homework and your grade soley depends on pop quizzes and tests/Final. Available for office ours (During covid this would be before or after class, would also have designated slot for office too).

Worst math teacher ever.

Hard to understand and follow.

This was the worst professor id ever taken out of any educator in my academic career. He not only advised I drop the class after not submitting an exam properly but also said id probably fail after it (this was the first exam of the year). He is a terrible teacher and does not make you feel comfortable doing so much as asking questions. Terrible.

You know something is wrong when half the class failed the midterm. Terrible professor.

The teacher does not care about his students. He has decided that he is not going to explain how to do problems, and grades like someone is trying to get their masters in Calculus. Unless you love Math, I would highly recommend not taking this guy for Math 71.

Worst math class ever. Does not know how to teach well and gets mad if you ask questions

This professor does not want his students to succeed. You will receive a 0 on your answer if one part is incorrect. His grading is ridiculous, and he wants you to fail. DO NOT TAKE HIS CLASS!!!!!!!!

Don't take this class, that's all I gotta say.

Why would SJSU hire such a terrible professor? He wants us to do quizzes and tests his way or else he'll fail you. He grades harshly and doesn't know how to explain problems well, and when you ask him questions he gets mad. He gives us quizzes every week and most of the time, we don't know what it's about. If you have him I suggest dropping.

This guy doesn't know how to teach. He gives you a 0 if you don't do it his way, but he changes his way every class. Doesn't give you enough time to submit your answers online, and isn't flexible at all.

Terrible.

If get this professor take my advice and drop his class within the easy drop period. I tried to stick it out through the whole semester, but I absolutely hated this class. He gives homework, but it isn't graded, his lectures are pretty much garbage and he gives quizzes every week on every other week. Plus he only gives you 10 min to do the quizzes.

I cry everyday being in this class with this professor.

This man shows no compassion toward his students. He drifts off the textbook and teach his own point of view, calling the authors descriptions poor while writing chicken scratch on the whiteboard. Avoid if possible.

This professor is legit the worse. Quizzes with very little time at the end of class with no leniency. Midterms with multiple, very difficult questions as well as giving very little to do them while also grading so harshly. Do not take his class. If you do, drop it immediately. Do yourself this favor and don't suffer through his class.

If I had to take this professor for the third time, I would probably drop out instead. His tests are insane for the low time limit, he would rather withhold his math beliefs than make our learning worthwhile, and he gets mad when the entire class says they don't understand. Overall careless, and somehow still working at SJSU. Stay away at all costs

You have hw but they not graded, your grades will base on the pop quizzes, 2 midterm test, and 1 final. The pop quiz may be abt the work he did in the previous lecture, or sometimes so stupid. The midterm is super hard, he said he curves the test but he gives 8 problems while the other class only gives 4. Don't ever take him for both A or learn

*Half of both of his calc 3 classes fails* "I did not expect so many of you to fail" - Katsuura. This man does not give af about you. This pretty much sums up SJSU's math department as a whole.

I've never written a review, but I felt I needed to. Drop if you can. If ur still taking his class, wait until the grades for mid 1 and think again. Exams are certainly doable if given enough time(he does not). You have to do things HIS way or you risk little/no credit. Youtube math is more helpful than being in class. Trust the other reviews

Everything is online right now, yet this guy does not use Canvas. His reason is that it is too difficult for him to learn. Yet he expects you to learn HIS difficult style on how to do problems, and if you don't, he'll knock off points. This guy is so old fashion and his lectures are a bore.

He does not have the patience to teach. It is a really tough class and with no material other than his lectures (since he does not like the textbook so sometimes self-learning does not work).

He doesn't use Canvas, which is really inconvenient for students. He only gives practices inside the textbook. When I ask him for a practice problem he said he can't. He doesn't check HW, but you still need to do it. HW takes about 4hrs/week. You have to work extremely hard to get a good grade in this class.

Terrible instructor, he doesn't even deserve the professor title. I don't understand how the university would hire someone this bad to teach. He is extremely strict, his lectures are confusing and he doesn't explain clearly. His exams are very hard, he thinks this is the only class students are taking. Please do students a favor and fire him.

Start Studying. hates on the john Stewart textbook yet gives problems from the text. Multiple times lost points on quizzes using textbook methods and formulas instead of his method. Extremely hard grader, unforgiving. If you dont go to lecture or understand his methods, you cant pass. No homework but theres pop quizes. Not enough time on tests fr.

Quizzes almost every class. Not enough time given for quizzes and tests. You have to go to the lecture otherwise you won't pass. Professor wants answers his own way even if you already have the right answer and work for it. He will take points off of quizzes/tests and not explain why they are wrong.

If u struggle in math, the way he explains things will confuse you. I only happen to do well in his class bc I took advanced math courses in high school (I'm a 1st yr btw) that conditioned me and got used to the difficulty level. He's also pretty rude sometimes; when students asks questions, he interrupts them and doesn't even answer it.

Cons: Harsh grader, HW doesn't count towards grade, messy handwriting, pop quizzes, confusing lectures, assumes we already know certain concepts already Pros: None

Pop quizzes were once a week and are extremely easy as long as you go to lecture and study the example problems. However, his tests are an entire new problem. You lose lots of points and they are way harder than the pop quizzes/lecture problems. I ended up retaking this course with another Professor and easily got an A there. Stay away at all costs

Without doubt the worst professor I ever met in my entire life. Have no problem failing 2/3 of the class. Grade extremely harshly on quizzes and test, minor mistakes dock you 60% of points. If you can take other professor, just anyone besides him, take it!!!

I struggle with math. And I have had past experiences where I had thought that math was really difficult. Taking his class now, I've realized that I did not even come close to the tipping point of how confusing math can be. This professor somehow takes simple easy to understand math, and turns it into something confusing and harsh. Definitely a no.

Harsh grader, complicated lectures, gets pissed when students ask questions. 75% EXAMS, 25% POP QUIZZES Good luck.

I have taken calculus classes before, and as an "introductory calc class", this was one of the hardest possible classes ever. Poor teacher, bad at explaining, weekly pop quizes, constant amounts of homework, massive difficult semesterly exams. The difficulty of this class is higher than it needs to be. AVOID AT ALL COST, try to transfer.

This is the worst math professor out there. He does not teach well.

Don't take the teacher, from the first day of class, there were atleast 50 students almost filling the whole class up. I stayed because I THOUGHT I was going to clutch the class, but that was not the case. 50 students downs to 15 left in that class and it was a nightmare if you stayed. Listen to the rest of the reviews and don't take the teacher.

Drop while you can. I had no choice than to take this professor and I thought that if I studied enough I could make it through. Worst decision. The lectures are bad, he is an unfair grader who strays from textbook. There are quizzes every week and a half or so that are not taught. Overall self taught class with ridiculous grading and bad teacher.

This professor was the worst! He never helped his students out with anything. I would ask a question about a problem and he would knock on the whiteboard thinking I would magically get it. Like this teacher graded based on exams and quizzes and if you didn't do the problems the way he wanted then you would lose a bunch of points on the exam/quiz's

Unforgiving grader, complicated lectures, doesn't like when students ask questions. 75% EXAMS, 25 POP QUIZZES. HW doesn't count towards the grade. Assumes we already know certain concepts already. Hates the John Stewart textbook but gives problems with it. HAVE to use his methods. Inaccurate syllabus test dates. No in-class notes or slides provided

Save yourself the time...I tried to stick with this professor because he was the only one available at the time but that was the biggest mistake in my college career so far, more than half the class is failing. Students already have been checking out in April. All the reviews below are true. This professor should not be teaching anymore.

Please save yourself from retaking this class and pick another. GO ON A WAITLIST OR TAKE THE 7:30 JUST DO NOT HAVE HIM AS YOUR PROFESSOR OVER HALF OF THE CLASS FAILED

dont even bother with this professor. Drop the class if you can and save your gpa. He does not care about anyone...

I don't believe it. No matter what it had taken for me to get right, professor has been throwing away points on all assignments, because he never showed any sufficient examples in lecture. He considered any help as cheating, and test reviews and Canvas as a waste of time. I can't believe he delayed my graduation plan by all this!

Math is simple for me. However, this professor finds a smart way to explain something to CONFUSE you. He often refer our questions as "dumb". You get 8 problems on test when others get 4. As what I have seem nobody in the class understand what he is talking about. The only way to get A in this class is doing HWs and NOT listening to lectures.

Horrible lecturer, extremely tough grader. He acknowledges that a majority of his students fail but offers no solutions. He does not care whether or not you pass the class. On top of being incapable of teaching, he was too slow to enter my grades at the end of the semester which prevented me from taking the next class.

Does not care if students understand the material or not. Questions asked in class are usually deflected. His teaching method does not even make sense. He acts as if everyone in class already previously understands the concept and skips multiple steps when teacher. Very condescending. Loves to go off topic and teaches his "unique" method.

So glad he retired

This is my worst experience taking this class. Over half of the students failed the exam, and I was one of them. I didn't do well because he provided a few examples from the book and whiteboard, and his exams were difficult without review. Also, there is no canvas to see our grades, so we had to email him, which is VERY inconvenient.

Extremely unforgiving and lacks empathy regardless of your situation. Had to Katsuura only because all the other sections were full and I joined late by 2 weeks and he refused to allow me to retake the quizzes so I started with a 0%. Needed surgery mid-way through the semester and he still didn't let me retake quizzes and ultimately failed me.

So glad he retired.