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He is very cool and always willing to help. He wants to make sure you understand.

I liked him a lot. He is very fun and very helpful

He is a very friendly, personable guy! I took him for a self-paced class, and he would always be happy to answer any of my questions during office hours or not. He is very cool, and everybody else I know who has taken him feels the same way.

If you have to take this class this teacher is your best option. He explains everthing so clear that you won't have problems in understanding the material.

He's a really good teacher, very helpful when you need help. His tests are very hard. His class is really good if you're a math major because it's a fun challenge. He's a very nice person.

Perfect if you really want to learn the material, and will help you all he can if you are willing, always available to answer questions any time, but very rigorous and challenging

He is the best math teacher that i've ever had. He is very helpful and friendly and explains the class material perfecly. Take any of his classes and you won't regret.

Very good professsor, clear and attentive to the needs of the students. His class is well organized and guarantees success in the class if work is done. Great person, recommended.

He is a very challenging professor. DO NOT TAKE THIS AS A SHORT TERM CLASS-unless you have a keen and natural afinity for math! He is fair, however he can be a little impatient w/a students inability to understand. Overall, he does try to explain the material in different ways to help conceptualize.

don't take him unless you are math major, gives per section about 30 problem plus about 40 online plus quizes on each section. Plus you can't return his book as you have to use cd code. So don't take him unless you willing to do 4-6 hw a day. He is explains everything well just crazy on hw.

Nice guy. Knows math better than any other professor I have taken. Always willing to help you. He does like to give homework. Be ready to do a lot, but come to class, take notes, do the homework, and you should be able to pass his class. The tests aren't too long, but sometimes the questions are.

This teacher provides us with everything and makes it more understandable and interesting. God I could just watch Spider-man. I didn't like very hard word problem exams. He was fair to curve all of us. I felt uncomfortable with exams.

he's a good teacher just do all your work all computer assighnment takes at least 6 hours a day to finish computer assighnment. lets you use 1 page notes for test, but don't have excuse caues he does not care all assightment on time.

Very flustered at times, and dosent make the greatest eye contact. There was no homework to turn in, but you sure did need to do it. Concepts became unclear sometimes only because he had a tendencey to speak really fast when he was nervous. Testd were painful, and poorly written.

Can someone say mental institution? It seems like he escaped from one. But smart guy, lots of homework, A LOT!!! Out of the book, then online, and quizes online too!!! Get ready to study statistics EVERYDAY!

Yeah he did have a lot of homework, online and from the book. He explains things well compared to most math teachers. All of his tests, except the final, he gives study guides which are the exact test. The final is mostly questions from previous tests. He also grades on a curve.

OK, to clarify: I took the "Self-Paced" version of this class, which entailed using Educo's crappy software. Try to *not* do this, because the software is buggy and crashy and will get in your way. Also the text used is very bad. From what I understand this will change. Prof. Castillo himself is great. Very nice, very helpful.

He's the man but if you love word problems take him. Gives you a 1-page sheet of a pre-test to prepare you for the real one; on the actual test, the format is the same but numbers are changed. When the whole class did horrible on the final he did something but more students failed; thank GOD I passed. You need 55% for a C.

GREAT TEACHER! One of the best teachers in LAVC. He is VERY helpful! Sometimes he goes fast but he covers every little thing the students need to learn from that class. He always gives study guides before the tests. Grades very well.

Statistics is a hard class!!!!! He is a very good teacher for this class. He explains very well all the lessons. He's very nice. In the five-week session he provided study sessions before exams and final also. You need to study hard because there are a lot of terminology in order to understand Statistics. You also so a lot of hw and comp assi

Castillo is a GREAT teacher but one who seems to forget we cant do everything he wants! I took him for the summer and had homework every night, a journal entry and about 11 hours a week for the online stuff! I think I got an A but I earned it! If you are NOT looking for a lot of work to do, I suggest you pick another instructor!

Excellent teacher, very knowledgeable. Doesn't even need to refer to book. Always explain clearly as well. Will ALWAYS help you if you have questions in or out of class. Cares about the students. ALso, his tests were VERY challenging and much harder than the book in my course.Perfect teacher for somebody very serious about actually learning math!

he gives you lots of work. dorky. goes over problems over and over until you understand it. his silly gestures made me laugh all the time. he's a whiz at math...hahaha...of course he's a professor. he's helpful. big final.make sure to do the HW. i never did one online journal but did all of the other work,managed to get a C. hard txt but good teach

funny but the lecture is way too looong

Best math teacher/ professor I've ever had in my life. There is no one more DEDICATED to making his students understand math and helping them. If you dont atleast get a B in this class you are either very lazy or very unprepared for this level of math. Either way it isnt in any way shape or form this great professors fault you got a bad grade.

hm he has sum weird funny comments..anyway he knows how to explain, but the class gets harder and harder, on my final i got few points because it does get so much harder as you go, try to have time for hw and being on the computer for the exercises and you might pass..i pass the class thanks to the computer exersises, you can choose your own gradin

He is a great professor. Yes, the exams are not easy and I agree with some other students that the class gets harder as semester goes, but you can pass it if you put effort doing homework and computer work. I passed with A but I worked my ass off and I end up loving math. He offers enough study sessions before the exam and studyguide helped as well

Great teacher! He knows how to make dumb students understand how to solve the problems. PC assignments are pain in the you-know-what, but other than that, it's a good class and I highly recommend him!

I have never had a more helpful professor. Class is not easy at all, but if you do the work, you can pass. Prof. Castillo generously gives his free time and conducts study sessions before each test and the final.

must take. HE'S THE BEST MATH TEACHER!!!very nice and helpful .easy to pull up grades by doing computer work. try to focus on studying the sample exams, 100% you will pass.

I learned alot from Dr. Castillo, he was a great influence and cares about his students. He was fun and his teaching skills were great. I learned alot from him. The computer work was tough and trying to get the homework done also was a challenge, but he taught me how to organize my time and I actually completed everything. Take his class and learn.

PROFESSOR CASTILLO WAS WAS AN EXCELLENT TEACHER THOUGH THE MATERIAL WAS SOMETIMES HARD TO GRASP. NONE THE LESS HE WAS VERY HELPFUL AND GAVE STUDENTS MANY OPPORTUNITIES TO GET THEIR GRADES UP. FOR THE MOST PART IF YOU AREN'T SERIOUS ABOUT SCHOOL AND MATH THEN THIS PROFESSOR ISN'T FOR YOU, BUT IF YOU ARE THEN GET READY FOR A CHALLENGE.

Good professor, concise but thorough explanations of homework problems. Some of his test questions seemed fairly difficult, though others came straight from the book (big bonus). The difficulty rating might be due to the fact this was a one month, accelerated class.

best math teacher eva! the only reason why other students doesn't like him and his class is because they are lazy. i really suck in math and i'm happy with my grade even thought it's not A. math for me is a nightmare but i managed to pass it because he's a good teacher. i really liked him.

very nice and I have nothing else to say.AMEN

very nice prof.and very helpful.cares about his students. must take.

Really nice guy, but moves really fast during lecture...read chapter before he lectures so you have an idea of what to expect...

As a person, he's a sweetheart. I have other issues with him: Chronically late, spent forever on easy chapters and then tried to cram in the last 4 chapters in a couple of mind-boggling weeks. Unprecedented amount of computer and written homework. If I'd known how bad the last 3 weeks of class were going to be, I'd have dropped the class.

I've learned a lot in his class.He's very helpful and nice too. However, some of his grading systems let you work your butt off, as what I just did.It felt like I was in a 5-unit class. But overall, you'll learn a lot. Most of the time he's late. And if you're not ready to take an exam, he'll give you another date to take it.

Great teacher cares about his students but you have to be ready to work. I highly recommend him.

Very hard class but if you work hard as weel you'll get an A. Very nice person.

He is nice and helpful. funish

MR. CASTILLO IS A REALLY NICE GUY AND ALWAYS LETS YOU FINISH THE EXAM EVEN AFTER THE TIME IS UP. YES, THE MATERIAL IS HARD BECAUSE STATS IS HARD BUT SO IS AEVERY UPPER MATH CLASS. HE IS NOT PICKY ABOUT ATTENDANCE BUT TRY NOT TO MISS TOO MANY CLASSES BECAUSE YOU WILL MISS ALOT OF MATERIAL. IN THE END I GOT A B+ IN THE CLASS.

vey helpfull

Final exam is the hardest. Prof. Castillo is the best teacher ever!! He is helpful-great in lectures, answers all questions. If you put in the online homework and textbook questions you will get a good grade. Mr. Castillo has inspired me in math - I do not hate math as much as I used to. He makes math fun and worthwhile.

He's very helpful and goes out of his way for you. I hate math but I still managed to get a good grade because he devoted so much time to helping us when he didn't have to at all. Super nice too.

Good teacher. His grading scale is SO loose that you would have to be an idiot not to pass.

a really nice teacher!! he's always there to answer your questions, he cares about his students. He gives sample exam before the actual exam also offers workshop for those like me who needs extra help.. he's awesome!!! HW of course!!!!remember practice makes perfect so if you wanna do well on his class better practice! thanks Mr. Castillo:)

Mr. Castillo was a good professor. He's willing and patient to answer questions, uses test that have the same exact type of problems as the homework, and writes Everything out on the board for easy note taking and comprehension. He does move as quickly as possible though so, don't miss more then one class in a row! Has a study session before tests.

This guy is helpful to the max.

Had him a while ago for Elementary Functions. There is no better Math teacher than this guy.

Awesome teacher. You will not realize it until you take your next math class. Excellent foundation for future classes. Very clear lectures, and he will answer any question and explain it until you get it. Highly recommended! "Any questions about that?"

He is very good prof,i am horrible at math,but he made kinda of easy for me. he is very nice and helpful.if you take his saturday classes, you get to eat free pizza and soda. great man

Prof Castillo is brilliant. He makes it possible for people who are not good at Math to learn the material and do well. He is always available to help students who need it. You need to go to class and practice the homework and you will do great! You can't find a better Math instructor.

Castillo is a very nice guy! always there to help. will answer a million times same question if need. make up for any test, just do the HW! great guy. kinda weird at times, but in a good way. if you suck at math, deff take this guy. he is very kind, very understand and exetremly helpful. I wish math dept. had more of these teachers.

Great Teacher!!!! He is very helpful and nice. This class could not get any better!

Awesome professor! He has a great sense of humor. He is very nice and is always willing to help. Easy class to pass as long as you do your written and internet homework. There is even extra credit opportunities online. Take good notes and you'll do well on the tests. Quizzes are based on homework, open book/notes.

I'm bitter because he doesn't have math 120 classes but i have had em for the past year and a half. Damn it! too bad he is not teaching 120

To say this class was intense, is an understatment but that was mostly due to the fact that it was a summer session class. I never opened the book but you need to be diligent about online HW & attending class. He is extremely helpful, patient and wants students to understand the material. I'm grateful to have had this truly dedicated professor!

Great teacher - the best. You have to do the work to learn the material and to do well on tests. He explains everything and will help you as much as you need. Lets you use cheat sheets for stats exams.

Extremely patient, answers every question you have. I personally really loved this proffesor his teaching skills are excellent his tests are veryy fair all you need to do is study. He offers plenty of ways to help you get an A you just need to study

He will give you the tools to succeed, you just have to be willing to work hard. He has review sessions which are necessary to do well on the tests. He will answer any questions and is extremely helpful. He is honestly one of the best professor's I've had at LAVC, and I wasn't so excited to take Stats but he is a very good teacher.

hes great!! hes very helpful, patient and flexible! he is easy going too. you do hw online - very convenient. and he goes over all the questions prior to an exam!! really great! i wish i coulda taken him for 125! take him!!

Prof. Castillo is very reasonable. He knows that not everyone loves math and most of us are just taking the class to meet a requirement. He is very patient and flexible and will answer as many questions as you need to understand the material. Easy grading scale, reviews for every test, lots of extra credit. He really wants you to suceed!

What a great professor! I was life or death to pass Intermediate Algebra last fall, but earned a B+ in Prof. Castillo's winter class. If you're willing to work, you'll do well. He reviews EVERY exam question, so you'll know exactly what to expect. Beware: be prepared for FIVE hour exams, no joke! But you're still the best Prof. Castillo!

OMG the best professor EVER. He is very patient and nice. Just go to class every day and u will be ok. The homeworks are online OR from the book. He gives you a review before the test, just study and u will do fine. I highly recommend him. Take him and you wont regret it.

I am not good at math, but I am passed his class with a B. I highly recommend him.

TAKE HIM, TAKE HIM, TAKE HIM. He is the best. The subject is not easy, but he makes it easy. Just go to class and you will be ok.

Prof. Castillo is the most caring/patient/easy-2-understand teacher ever! If U don't get it w/him - then U'r the problem! He provides test reviews, hmwk is optional (eitha online or book - u'r choice). He'll even do 1-on-1 tutoring if U ask. Goes above/beyond 4 his students! Simply the best! Wish there were more like him!

I love Mr.Castillo so much!!! I had never excelled in math the way I did when I was in his class. This man loves what he does, therefore he comes to class ready to teach and answer any questions. I recommend this teacher to EVERYONE... I was really sick for almost 3 weeks and he came to school on his days off just to tutor me alone! Hes amzing!!

Mr. Castillo is an Amazing Teacher. One of my classmmates had taken him for M.115; we were together taking M.125 w/Diff.Prof. MR. CASTILLO came to school on his time OFF just to tutor US..! HE HELPED US IMPROVE OUR GRADES. Thank YOU so much! HE LOVES MATH..!!! TLC

Mr Castillo Is So Amazing!! I have had him for 115, 125, and now 227 Statistics!!! He always makes himself available to help you if you are struggling, There is no reason not to get an A in any of his classes because he gives you all the tools you need to succeed!!! He LOVES what he does and thats why hes a wonderful teacher!!! You can retake tests

Professor Castillo is really nice and helpful. He 's amazing at math. Boring lecturer. If you need help he's willing to help you. I love that he gives practice tests a week prior to test . If you study it and do the review you will get a good grade.Test is identical to practice test and only 25 questions. and you can retake your tests if needed.

highly recommended, he's a great professor knows what he's doing, gives you practice tests ahead of time that helps alot if you take the time to study them...gives extra credit which is always a plus in a math class, tests take time but if you studied then you should be fine...uses an online system, that gets annoying but managable.

Very nice man. His grading scale is EXTREMELY lenient. He lets you retake tests. Lots of hw so lots of opportunity for points. You have to be the laziest person on the planet not to pass his class. He really wants you to succeed.

The best professor ever! Thank you Mr. Castillo. Your the best!!!! Gives sample test, make ups, and plenty of extra credit.

It's almost impossible to fail especially with all the sample tests and extra credit he gives. It is a lot of work but he's very interested in seeing pass that he will even have one on sessions with you. It's also cool that you can retake tests to get a better grade. That's awesome! I hate math but at least he made it bearable.

GREAT math teacher. will work with you until you get it. hard grader but lets you do retakes and makeups for all tests except the final. hw is online and quite simply just keep up with it. very helpful! take math with him. don't be afraid to ask questions bc sometimes he assumes that we speak the same math language as him.

What is everyon talking about! Prof Castillo is an amazing professor! He does EVERYTHING in order 4 students 2 succeed in his class! There r exam reviews, sample exams that r identical 2 exams, & he allows retakes! It's a hard class ESPECIALLY in winter, but he is an amazing prof and helps out a lot! Not everday u get such a professor as him!

He is just awesome! He tries to help as many people as he can! He is extremely the nicest professor I have ever had! His grading system is based on a curve, so there is no reason to complain! Study guides are given, and he always finds a way to help you! Lectures were clear, and understandable. I took it during winter session, and it wasn't bad!:)

Took his class for both math 115 and 125 passed both classes with an A. His exam reviews are super helpful, reviews are almost replicas of the exam. I preferred to do the online homework it helped me out more and i got to turn it in on Sunday compared to book work that was due on Thursday. since it is math do the hw and you will be fine!

I'm not sure that I got the best knowledge possible from his class but I did learn the material.He's an Ok teacher and he's lectures can be a little unclear but he's very helpful. He grades on a curve plus he lets you retake exams as many times as you need to! Also he isn't strict about deadlines as long as you do the work and hes a very nice guy.

Castillo was extremely hard to make sure all his students have the opportunity to pass. I really appreciated that he took the time to grade makeup tests. He would come in with stacks of tests and he would give you so much time to finish a test. if you didn't finish in class he would let you finish in his office. I am so glad I passed with an A.

I have heard a lot of positive things about this teacher, my bf took him for Trig & Cal BUT Stats HORRIBLE! I dropped this class because I just didnt get his methods and trust me 80% of the class felt the same way, always lost. If you have to take him don't take him for Stats TRUST ME!

One of the best professors if you are not a fan of Math or Stats and just need to pass this class to move on to better things at the 4 year university. He helps you with any questions and lets you retake exam if needed.

I've taken professor for several math classes. I took his Calculus 2 class and got an A but I spent about 3 hours everyday studying the material. There was a lot of homework but if you do it, you will be very prepared for the integration you will do in Calculus 3, Linear Algebra, and Differential Equations. He is an amazing professor.

I took math 115125 with him, not gonna lie his exams can be extremely hard! You gotta practice if you wanna pass his exams. And what sucks is that he doesn't play when it comes to grading, so be careful with your answers. But overall, he's a great professor who's willing to help and is really nice. I aced both his classes due to hard work!

Very nice person. way to easy going. You ask for help he will go out of his way to help. though statistics is very different from algebra please do not take out your frustration and bully him. 2 take home exams, 2 in class exams. Extremely easy quiz's, fail 1st try because of laziness don't bother. online reviews, for study guide. CAN'T BE LAZY!

the best one

Professor Castillo is an amazing math professor I ever had. I took math 227 which is not easy but professor Castillo is doing everything to help for understanding this subject. Especially I like his tests, there is no timing you can do your tests without stress and he gives a chance to retake the tests. I like his style and he is very helpful.

Professor Castillo is very good and amazing math professor. He is master of his job. I like his teaching style always gives stady Gide and you can retake the test.

Professor Castillo knows his stuff, he will do his best to make it clear to understand. I took this course over the winter session and found myself enjoying the pace of the class. Good luck!

Great class. good Professor. homework helps with studying. uses educosoft for homework.

Math was a real struggle for me. Taking his combo class was one of my best decisions. I recommend only taking this class if you decide to do combination. Castillo will give you every opportunity to pass the class, he let's you re take exams as many times as you want. His workload is a lot. If you put time into this class you can't not pass.

This is the second day taking this class, and as a person who cannot stand math, ive already completed all of the assignments for this week. Dont listen to the negative comments. There is a few assignments due each week, but i can already tell this is going to be the best class. Recommend!

Prof. Castillo is what you call, a National Treasure for the College Community. There has been few that define the quintessential meaning of "teacher." His aptitude for teaching is nothing short of a transcendental gift from a higher dimension. The lectures are clear, succinct, enlightening, and complete. He invokes the evolution of a genius mind.

lectures are clear, you can retake exams, cool guy. Knows his profession inside out. also challenges you to be great. inspirational! Thus far my favorite professor.

He has good methods of instruction if he has enough time and does not fall behind. If he does fall behind, he will make you write his lecture notes as HW and skip the sections, but this is not something that he would do every week nor day. Get ready for HW and he uses every single minute he has in class, so if you get overwhelmed easily consider it

I took professor Castillo for two semesters in a raw, first one I passed easily with an A. Second one was the combination , I would say it was difficult, enormous work load, but if you the power of three: Perseverance, Persistence and Patience you can do it. Also , he will answer all your questions, with great patience.

He is a good professor and has a lot of patience! There was this lady in my class who would never understand anything and he would always go over things with her even tho she would get hostile. There is a pretty good amount of hw online but if you ask him he extends the deadline for you. He allows you to retake test but your scores depend on ur hw.

LECTURES Prof. Castillo is what you call, a National Treasure for the College Community. There has been few that define the quintessential meaning of "teacher." His aptitude for teaching is nothing short of a transcendental gift from a higher dimension. The lectures are clear, succinct, enlightening, and complete. He invokes the evolution of a geni

He's a great person and teacher, always available to answer you question, never ignore any questions or concerns Love it

I would definitely recommend Professor Castillo to anyone, he never give attitude to anyone when asking a question, he is very professional and understanding. He gives a lot of extra credit work and a super nice person. his class requires a lot of homework but allows a chance to retake a test if you do bad. I definitely recommend.

He is a very good professor; very patient. He never looked annoyed or mad when students had questions or when asked to repeat a certain part of the lecture if the student didn't understand it. (which is something a lot of teaches have done in my past math classes experience). He gives plenty of extra credit opportunities so its very helpful.

He is such an amazing teacher. He is very understanding, kind, and truly tries to teach you the material. He gives out a lot of extra credit and allows extensions. Attendance is very important because everything he teaches in class is on the exams. He is the best teacher i have ever had. And i really recommend him for any math class.

He really wants you to succeed, allowing you to retake exams & uses the best grade. His willingness to work with me ensured that I passed with an A. The online portion can do a lot to boost your grade. Open the tutorials and rack up those minutes! If you put in the work and show him, he will work with you to ensure you pass. Excellent professor!

Took him for Stats over the summer. For the most part his lectures were dull/dragging on and a lot of the material wasn't really relevant. However, exams were very fair and unlike other professors, practice exams were identical to actual exams, zero curveball questions and you will pass if you put in work in the class. Generous professor imo.

Great professor, he is really in love with math, always ready to help you with your "stupid" questions. You will be OK if you went to classes and did your homework

DiffyQ is saturated with many indispensable techniques that take time to master; however, Professor Castillo's lectures help develop a deep intuition for the subject. There're no curveballs as all lectures and tests closely follow the book. His lectures are easy to follow, and his notes are very concise. Individualized help is always available.

What a guy

Tough class with a lenient grading scale to compensate. Boatloads of homework every week and exams can take upwards of 3 hours to complete. Several opportunities for extra credit and exam retakes except for the final. A stickler for showing your work but is very accommodating and fair. I failed because I fell behind a lot.