Average 3.44 based on 82 teacher ratings
Ken Koci is a Math teacher at Troy High School located in Fullerton, California and part of Fullerton Joint Union High School District. Ken Koci's 82 teacher ratings contributes to Troy High School's ranking of 1,304 in California. Additionally, the average teacher rating at Troy High School is 4.04 stars.
3
Easiness
3
Helpfulness
3
Clarity
4
Knowledge
3
Textbook Use
3
Exam Difficulty
1
Recommended
2
Easiness
2
Helpfulness
3
Clarity
2
Knowledge
5
Textbook Use
5
Exam Difficulty

I had Mr. Koci about 2 years ago for Calc BC. He had favorites, was very harsh on grading, and gave absurd amounts of useless homework. At the time I was too busy trying to do well in his class without realizing how awful it really is. I received my first and only B. I had thought that "I guess I'm just not good in math". 2 years later after attending a top 20 undergrad and taking multi, physics E and M, etc. (all of which I did well) I realized just how lousy Mr. Koci and his class really was.

2
Recommended
1
Easiness
3
Helpfulness
1
Clarity
4
Knowledge
3
Textbook Use
2
Exam Difficulty

heavy heavy favoritism especially towards female athletes. if you're a girl, make sure you smile a lot and laugh at his jokes, trust me i speak from experience. super harsh grader but if you come up to him a lot and show you care about your grade he'll help a ton if he likes you. if you're not a girl i'm so sorry. not the worst teacher but definitely not the best

1
Recommended
2
Easiness
1
Helpfulness
1
Clarity
2
Knowledge
2
Textbook Use
2
Exam Difficulty

Too much homework. No specific directions on exams and unfair grading to some. U have to be there to know what I'm talking about. Heavy favoritism and rest of the students don't exist.

1
Recommended
3
Easiness
2
Helpfulness
2
Clarity
2
Knowledge
2
Textbook Use
2
Exam Difficulty

Unfair grading and favors heavily on few students. Avoid him if you can. Disappointed with him and few other teachers at Troy.

3
Recommended
3
Easiness
3
Helpfulness
3
Clarity
3
Knowledge
3
Textbook Use
3
Exam Difficulty

Definitely there are rumors of his favoritism towards girls. Up to you if you want to believe or not.
Lots of hw, insists on showing work, once lost points for writing y= instead of f(x)=.
Left-handed, so after writing something he covers it with his hand. You have to go quickly when taking notes, and if you miss something, you have to wait for his hand to move. A frequent complaint.
Tries to connect with the students, comes off as awkward and strange.
An average teacher.

4
Easiness
3
Helpfulness
3
Clarity
4
Knowledge

Not a bad guy personality-wise, good notes, and knows his stuff. Terrible grading system, though. He gives tons of homework only worth 2 points. Poor effort gets you 1 point, but poor effort can mean "you missed a step" or "you only did half the problems." Same picky grading on tests - miss 1 step and it's 2/4 on the problem. Some smart kids end up getting lower scores than the average kids - they get more problems right but lost more points total because of lots of little deductions.

3
Easiness
4
Helpfulness
4
Clarity
5
Knowledge

Mr. Koci's a cool teacher. He's really strict on tardies and stuff but besides that, he's really good overall. His tests are fair and he gives you plenty of opportunities to raise your grade in his class.

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

A very very calm and collected guy, and an extremely kind teacher. It is true that his hand does block the screen but u cannot blame him for that. Overall great teacher.

1
Easiness
1
Helpfulness
1
Clarity
5
Knowledge

he is the worst teacher who has ever lived. WAY TOO PICKY!!

5
Easiness
5
Helpfulness
5
Clarity
5
Knowledge

Freshmen...why criticize a teacher for being left-handed? That's a very shallow approach to life.

1
Easiness
1
Helpfulness
1
Clarity
5
Knowledge

His teaching approach is very cloudy, especially in Algebra 2. He speeds through the problems like it's really easy, while they really ARE for him. Not necessarily for the class. Not to mention his left hand always blocks the

2
Easiness
1
Helpfulness
1
Clarity
3
Knowledge

mr koci is a very obnoxious teacher! first of all he is left handed so his hand is always blocking the math problems!! also, when grading he often puts in that you didn't do homework when you did. so you have to show him that

5
Easiness
4
Helpfulness
5
Clarity
4
Knowledge

I think he is a great guy with a random sense of humor that sometime catches you off guard.

4
Easiness
5
Helpfulness
5
Clarity

His thorough lectures and homework really help you grasp the hard calc concepts so by the time you get to the chapter tests, they're pretty doable. Excellent teacher, very nice.

4
Easiness
5
Helpfulness
5
Clarity

great math teacher. lectures help you understand calculus and he really prepares you well for the ap test. a bit awkward the first day but a nice guy; can be quite funny once he gets to know the class

2
Easiness
3
Helpfulness
3
Clarity

Knows his subject well, but teaches it way too fast. Plays favorites. That said, he means well and will give you help if you ask for it. A generally nice person.

4
Easiness
3
Helpfulness
4
Clarity

I am now a graduate student in mathematics and I do credit Koci for introducing me to calculus. If you do the homework and understand it, you will easily do well in his class. That said, Koci should be fired. He is not fair.

5
Easiness
4
Helpfulness
4
Clarity

Enthusiastic, makes corny jokes, and rather interesting. Class material is fairly easy and tests are direct and straight from his lectures/notes. Homework is a bit heavy but I guess the tests make up for it.

3
Easiness
4
Helpfulness
1
Clarity

he marks you down for no apparent reason.

2
Easiness
3
Helpfulness
3
Clarity

kind of mean. obviously has favorites. but he's a good teacher.

5
Easiness
4
Helpfulness
3
Clarity

1
Easiness
3
Helpfulness
1
Clarity

4
Easiness
4
Helpfulness
4
Clarity

He does know his stuff, but he gives many many homework questions and is very picky. In the end, it pays off though, as you remember all of the formulas. He says "ok" a lot.

4
Easiness
5
Helpfulness
5
Clarity

Great teacher. He can go over material a little too quickly, but he really prepares you for the AP Calc test. Always willing to help you out if you don't understand something.

3
Easiness
3
Helpfulness
2
Clarity

He is an OK teacher. Standard teaching w/ notes in an Honors class doesnt cut it though. His grading policy on HW is devistating for grades due to being unproportional to the amount of work.

5
Easiness
5
Helpfulness
5
Clarity

THE BEST TEACHER IN THE WORLD!!! :D

4
Easiness
1
Helpfulness
1
Clarity

R U SERIOUS?! HE DITCHED US FOR RACE ACROSS AMERICA...NOT TO MENTION HE MARKS OFF HW FOR NO REASON! OH AND HE MADE ME WRITE THE QUESTIONS ON MY HW...WHO DOES THAT?!

5
Easiness
3
Helpfulness
3
Clarity

teaches ok...tests r ok...hw is kinda unberable

2
Easiness
2
Helpfulness
3
Clarity

knows what he's talking about, but assigns way too much hw, and more time is spent writing the notes than understanding them

3
Easiness
1
Helpfulness
2
Clarity

not good. probably the most boring person that you will ever meet. Huge favoritism. Notorious for long homework assignments worth close to nothing. Pretty easy tests.

2
Easiness
1
Helpfulness
1
Clarity

boooo. expects all his students to be perfect and thinks that he's teaching a bunch of 3rd graders.

3
Easiness
4
Helpfulness
4
Clarity

His teaching is pretty clear and thorough. There is a little favoritism, but it's not too bad.

3
Easiness
1
Helpfulness
1
Clarity

seriously, he is the most picky of people ever. This is math not English, we don't need to write sentences and one less step doesn't make your answer or your work wrong. Ugh

3
Easiness
2
Helpfulness
2
Clarity

dude, if the homework is worth nothing, than why make them such long assignments? One wrong step and minus 1 out of 2 points? What the heck?

3
Easiness
5
Helpfulness
5
Clarity

Tests are somewhat challenging, but good overall. A great teacher, but kinda wierd overall vibe at first. Favoring does happen sometimes, but if you're not favored, you won't suffer too much. Good AP prep for AB and BC.

3
Easiness
4
Helpfulness
4
Clarity

1
Easiness
2
Helpfulness
2
Clarity

1
Easiness
5
Helpfulness
4
Clarity

he's hard but a good teacher. he knows what he's talking about. just get on his good side

1
Easiness
1
Helpfulness
2
Clarity

Smart teacher, if u r smart, u will do well and learn a lot from him. if not -.- good luck and work hard to maintain ur grade to stay in honors >.>

2
Easiness
4
Helpfulness
5
Clarity

He teaches quite well, and I understand it, but somehow I never do well on his tests. He's scary and favors atheletes (not me).

2
Easiness
1
Helpfulness
3
Clarity

He definitely has favorites and if he doesn't like you, you're pretty much screwed. This guy teaches and writes so freaking fast it is hard to keep up in this class.

4
Easiness
5
Helpfulness
5
Clarity

He could definitely work on the personality, but as a teacher, he gets the job done.

5
Easiness
3
Helpfulness
3
Clarity

acts like he noes his stuff, wen he really doesnt. if u do ur hw tho, u'll get an A. calc was the easiest class ever.

2
Easiness
3
Helpfulness
5
Clarity

yeah MR KOCI! keep on calculusing...

2
Easiness
3
Helpfulness
3
Clarity

Got to admit he knows his stuff, but his teachings leave a lot to be desired. Takes way too many points away from puny, insignificant errors. Lighten up!

1
Easiness
4
Helpfulness
5
Clarity

A helpful teacher but definately shows favoritism. If you're not super smart or don't play a sport, he acts like you dont exist.

2
Easiness
4
Helpfulness
4
Clarity

Prepares students for college, helpful, but gives excessive HW. Tests for Calculus are hard. Seems to favor some students over others. Dont get on his bad side.

1
Easiness
4
Helpfulness
4
Clarity

i actually learn stuff in this class

1
Easiness
4
Helpfulness
3
Clarity

HE IS SOOPER HARD. HE HATES ME. STUDY 3-4 HRS FOR EACH ALDEBRA 2 TEST~

2
Easiness
3
Helpfulness
5
Clarity

great teacher... nice too... just need to understand him

1
Easiness
2
Helpfulness
2
Clarity

man...if he he keeps saying alls you gotta do is... , i seriously will...

2
Easiness
3
Helpfulness
4
Clarity

Good teacher but should definitely be a lot less strict about the grading and give a lot less homework.

2
Easiness
3
Helpfulness
3
Clarity

hard tests, likes smart people only

4
Easiness
3
Helpfulness
3
Clarity

so much homework sometimes

3
Easiness
3
Helpfulness
5
Clarity

lots of hw, doesn't enjoy his job- u can tell (for 5th period)

3
Easiness
5
Helpfulness
4
Clarity

Keep the Homework Coming!

4
Easiness
3
Helpfulness
3
Clarity

rather fair...btw do ur hw

1
Easiness
3
Helpfulness
3
Clarity

Lot of work, you have to be a smart one for him to like you.

3
Easiness
5
Helpfulness
5
Clarity

Good teacher, very clear

3
Easiness
4
Helpfulness
4
Clarity

Fine. Not that hard, just the tests...

5
Easiness
2
Helpfulness
3
Clarity

easy A, but u better act smart in his class

2
Easiness
2
Helpfulness
2
Clarity

nice once he knows that you are interested

2
Easiness
3
Helpfulness
4
Clarity

EXCESS HW!

1
Easiness
2
Helpfulness
4
Clarity

only the very smart can keep up...

2
Easiness
4
Helpfulness
5
Clarity

he's better teaching his calc class than he was for alg II..friendly, funny

1
Easiness
1
Helpfulness
2
Clarity

Excessively demanding. Excess homework.

3
Easiness
3
Helpfulness
3
Clarity

Good guy, good teacher, a little strict on work though

3
Easiness
2
Helpfulness
2
Clarity

not approachable, bright man but needs to improve people skills a lot!!!

2
Easiness
5
Helpfulness
5
Clarity

Cool guy, but dont ask him to show you what an absolute graph looks like

2
Easiness
5
Helpfulness
5
Clarity

Don't be tardy

2
Easiness
5
Helpfulness
5
Clarity

Always friendly!

5
Easiness
5
Helpfulness
5
Clarity

I got a 300 because of him.

3
Easiness
5
Helpfulness
4
Clarity

nice teacher, but ZZZZzzzzzzzzzzz....... What? oh? Why did I just fall

2
Easiness
4
Helpfulness
4
Clarity

very hard class, but teaches you the concepts well

5
Easiness
5
Helpfulness
3
Clarity

Mr. Koci is Cool

1
Easiness
4
Helpfulness
4
Clarity

Still having nightmares from the day he raised his arms, exposing armpits...

1
Easiness
3
Helpfulness
2
Clarity

need to stop talking about son and talk about daughter

5
Easiness
1
Helpfulness
1
Clarity

too easy!

2
Easiness
2
Helpfulness
5
Clarity

plays favorites... if you're a girl... hahahaha

5
Easiness
5
Helpfulness
5
Clarity

Logs are fun.

1
Easiness
1
Helpfulness
2
Clarity

needs to explain topics before moving on to the next one

2
Easiness
4
Helpfulness
5
Clarity

good teacher = yes. fun teacher = nooooooooo

Similar math teachers like Ken Koci?

92 Ratings
78 Ratings
58 Ratings
48 Ratings
44 Ratings

Learn more about Troy High School

5-star
71%
4-star
11%
3-star
7%
2-star
3%
1-star
6%
Based on 4,421 Ratings
Troy High School is a public high school located in Fullerton, California and part of Fullerton Joint Union High School District. Troy High School is ranked 1,299 in California. Learn More