4.9
Quality2.4
Difficulty100%
Would Retake96
Reviews100%
Would Retake
96
Reviews
Rating DistributionOfficial
5
91
4
5
3
0
2
0
1
0
What Students Say
“I wish he taught the upper divisions”
BIOL189 - 5.0 rating“He is absolutely a great teacher”
BIO189 - 5.0 ratingClass Info
Online Classes
100%
Attendance Mandatory
74%
Textbook Required
75%
Grade Predictor
Your expected effort level
Predicted Grade
A-
Grade Distribution
Common Tags
Rating Trend
Stable
+0.13 avg changeRatings by Course
189
5.0
(1)BIO002
5.0
(1)BIOL305
5.0
(1)BIOL101
5.0
(2)BIO189SECTION
5.0
(1)Difficulty by Course
BIO002
4.0
BIO189SECTION
3.0
BIOL321
3.0
BIO189
2.5
BIOL189
2.3
Reviews (96)
extra credit, online study guide, posted lecture notes before class, hes a little boring but makes the class easy.
The teacher is fairly new and can come across as a push over, but take the time to listen to him. He is a good teacher, with great knowledge about the subject. He does NOT make things difficult, but rather tries to cater to the way you learn. I would very much recommend him. Do the readings & study. There is NO reason not to get an A in his class
Dr. Silva is an awesome teacher !! If you show up for class and pay attention and ACTUALLY do the online activity he has there is no reason you can't get an A. He knows his stuff and is willing to answer and help out wherever needed. I would recommend him to anyone.
This guy does everything he can to help you understand what he teaches. He goes out of his way to help you get ready for test and such. He cares about his students success. Lectures are a little dry but the material makes it that way. Recommend him
Really great teacher. Answers questions thoroughly. Don't buy book his exams are based off of lecture.
Easy A with this professor! Go to class and get as many i-clicker points as possible, they help! He gives out study guides and they're helpful. Do the online assignment and study those questions because he does put them on the exams! Very nice guy and has no problem explaining things until you understand.
He is an intelligent guy, goes in detail about the subject. If you have a question he will go over it until you are cleared on it. iClicker questions help a lot if you get them right. He also posts study guides that gives you a good example of what kind of questions are going to be on the exams.
Excellent teacher! He wants each and every one of his students to succeed. He will explain anything in as much detail as needed in order for you to understand. Just an all around great instructor
Fantastic Professor. He gives you all the tools to succeed. I was so intimidated of science but Dr. Silva wants everyone to succeed and he is willing to help you. If you attend every class, do all the assignments and labs, you are guaranteed atleast a B. FABULOUS TEACHER!!!
This professor is very knowledgeable. He's very approachable if you have any questions or concerns. Although he does not require attendance, it is crucial that you do since he bases his exams on his notes. Also, he gives you extra credit for all the iClicker questions you answer correctly. I highly recommend him!
Great teacher. To get an A, go to every class, do all lab work and study his notes. Note, do not buy biol book, he works off of his in class notes.I wish I had him through out my biology classes.
Excellent professor. He is the best teacher I ever had. To get an A you need to attend all classes, Labs and go through study material that he provides before exam. He is very knowledgeable and I highly recommend him.
This is honestly one of the best teachers I have ever had in my academic career thus far. He explains everything very well, answers all questions and does everything he can to help students. There is a lot of material, but as long as you attend class, pay attention, and study the notes and guides he gives you you'll do great. Very fun class.
Dr. Silva is a very helpful instructor. He explains the material in great detail. Highly recommend dr. Silva, would take him again in higher biol classes if possible.
Wow... Im strongly recommended this instructor. He is very helpful and patient with students.He is very knowledgable and willling to answer any question that students ask. I think the school should give him a rate :)
Dr. Silva is a great professor! I highly recommend him! He made learning easy and fun. All around pretty easy class as long as you attend and do all assignments given! Would take his class again! :)
This professor is awesome! he teaches in great detail makes concepts easy to understand! I would take him again if possible! take this professor!!
IF YOU WANT LEARN AND GET GOOD GRADE TAKE HIM.
Dr. Silva is an EXCELLENT teacher. He uses Power Point, the book was not needed. He is very clear, and to the point and he has a sense of humor. He is willing to help and encourages students to come to his office hours. He is quick at grading exams and posts grades within 2 hours of taking the exam. He's AWESOME!!
He is an amazing teacher, knowledgeable and organized. He uses his own powerpoints, so don't even buy the book! Attend every class and you should at least get a B!
Dr. Silva is the best professor I have ever had! I wish he taught more BIOL classes. I would take him over and again!
I definitely agree with the other comments. I wish I had Dr. Silva for all by BIOL classes. I looked forward to going to his class every week.
He is really easy and everything he wants you to know he puts in his power point lectures
He is really easy and everything he wants you to know he puts in his power point lectures
He is really easy and everything he wants you to know he puts in his power point lectures
Good teacher, long lectures. Have to be in class though he goes by participation points and these iclicker questions that are extra credit. Study for the exams, everything is off his lectures, no book so don't buy one.
All comments are about right on although he may not be as easy as it is put forth here.
He is a easy-going guy and our class didn't even need the textbook, you just study the powerpoints. However, he does make it mandatory to come to class so you can get all the notes. Willing to explain concepts your not understanding. Would recommend.
He's a real nice guy and helps you a lot. He is very clear and you don't even have to buy the book. All of the information come from his own power point presentations that are really easy to follow along and understand. He gives you a lot opportunities to get a good grade.
He is an awesome teacher and very helpful. His lectures are very insightful I never even bought the bio book and I got an A in his class.
Dr. Silva's class is very easy. Biology was my weakest point, yet his clarification is great and he helps engage students. His class is mandatory for participation points and you also receive extra credit points. The "fill in the blanks" lecture style and weekly study guides really help prepare you. Easy A without buying the $200 book.
I really think Dr. Silva is one of the most intelligent professors out there. He is kind and considerate and though there is TONS of material to study, he helps A LOT and makes it interesting. I REALLY enjoyed his class & wish he taught 224 & 225! AWESOME PROFESSOR! Also, no book required!! WOOHOO Saved like $150! Thanks Dr. Silva!!!
He is smart, very helpful and Awsome! Take his course and you will learn a lot since this course is the foundation for upper level biology.He is the best in teaching you, respecting you and giving you letters of recommendation super fast when you ask.I highly recommend him.
I thought he was pretty clear, tests are multiple choice, based primarily on lecture and notes. He has a dry sense of humor. He was available to answer questions . Willing to help and enjoys what he does. I wish I had him in High School I may have had a differnt outlook in science. I would recommend him for any class; I enjoyed his teaching style.
Dr Silva is a great teacher. The study guides and online tools will help with exams. The final exam is only on the last chapters. He is very patient and helps you throughout the class. He loves his job and I wouldn't take any other teacher for 189
Great class and great teacher. He is very thorough and explains each section before moving on to the next. I would recommend his class. Book was not needed he has great powerpoints and study guides. I passed with an A and never needed my book
You would be a fool to not take this lass. Dr. Silva was very thorough and friendly. Attend class and you shouldn't have problem getting a good grade! Easy A for me.
Great Class. Great Teacher!
Easy A!! Just do your work and attend class everyday and you will be fine!! Don't need textbook so it saved a lot of money. Exams are out of his notes and lecture videos. Very nice man as well. Take him! U wont regret!!
What a great professor! Coming into biology I was really nervous, but his clear lectures are enough that you won't even need the textbook! He gives out study guides which help a lot as you are doing about five chapters an exam. Attendance mandatory as iclicker questions are given every day.
By far one of the best professors I have ever had. He truly cares about your success and even takes the time to learn your name. Attend class, and don't be late. There are daily iclicker questions that help your grade. Don't buy the textbook, he is very thorough with notes. Pay attention and you'll do great. TAKE HIS CLASS!
The best professor I have had yet. He is very knowledgeable on the topic and keeps lecture very interesting to somebody who had no interest previously. Textbook not required. Attend lectures and lab for easy points and utilize study guides he provides each week. Also make sure to complete prelecture video quizzes, easy points again.
Dr. Silva is one of my favorite teacher, his class is very intersting and he is very helpful. I hadnt take bio in a long time, after this class I ended up with an A-. Show up, do the work, study and you will pass. I wish all my bio classes would be with him. He is very smart so pay attention. I strongly recommed him for bio 189.
Dr. Silva is a great teacher. The best teacher for Biology. I highly recommend him. Great teaching techniques.
super easy teacher, of course you have to study. His tests are not hard at all. highly recommend this teacher. very nice and approachable teacher! BEST teacher
Incredible teacher. He makes this class so interesting and gives you all the tools you need to get an A. And if you don't get an A, it will be because of lack of effort on your part, because he gives you study guides for everything and has review sessions before every test.
Dr. Silva is one of the most amazing teacher out there, I wish he teaches the other bio classes. He is very helpful and will make sure you understand what he is saying before moving on. If you do your part and study you will pass this class with flying colors. First day of class he remembers everyones name, thats impressive.
I had ZERO interest in taking this class since I had failed and dropped out of another biol 189 class years ago. Dr. Silva makes it easy to understand and truly cares about your success. I'd say take this in a heart beat. Don't waste your time somewhere else.
Amazing teacher!! This was my first biology class ever and yes, you MUST study for this class! I enjoyed this class so much I even switched my major over to biology..haha not even kidding. I had no idea how much of an interest I had in biology until this class and it wouldn't have been the same with any other teacher!
One of the nicest and clearest professors Ive ever had. I took it over summer, and although its a lot of information, he will take the time to explain to you if you dont understand. He is a very smart guy. You have to study, but dont need the textbook. Do your part and you will do GREAT! He also works with you a lot if you have other things.
I took this class over the summer and it is definitely the way to go. It is a lot of info but Dr. Silva does such an amazing job teaching all of it. His style of lectures, labs and online videos are great. He is easily the best professor I have ever had. You have to study and know the material and you will be rewarded with the grade you deserve
I would recommend Dr. Silva 100%. His style of teaching is motivational, encouraging and he seems sincerely interested in your passing the class. He gives great study guides to help you with exams. He was always available to help me when I had additional questions and never seemed like he was being bothered. I only wish he taught 223 & 224.
Professor Silva is an awesome teacher. He is extremely clear and knowledgeable. He also makes learning fun! His exams are based on his lecture & his notes, so although attendance isn't required, it's highly recommended. He also uses iClickers for participation and quizzes. Overall, he's an excellent teacher, & I'd take him again if I could.
I learned so much. You have to stay on top of your studies, and really understand the information. He is an awesome professor.
Great professor. Is very clear when explaining in detail. He is very nice and will help you with any question so that you can understand it better. Study guides are clear and very helpful for the exams. He sets up a study session the class before the test. Overall a great professor.
He is seriously the best professor I have ever taken. If you print out his powerpoints before class, and follow along with his lecture, you'll be fine. His study guides are very helpful and gives you the essay questions before hand. I'd take him for every Bio class I have if I could.
I loved this teacher! Wish he taught more biology classes. He is the nicest and has a lot of patience with you if you dont understand. You obviously have to study to get an A but he makes it so easy by explaining everything and giving study guides. No projects.
Take Dr. Silva! The class is not easy, but you will get the grade that you want if you work for it. Attendance not mandatory, but you do receive points for showing up,its also the only way to earn "extra credit" points. He is very quick on feedback and emails. Never acts bothered by questions. Gives helpful study guides for exams. Buy the book.
Great professor! Always willing to help students and is never rude when doing so. Dr. Silva has a passion for Biology and it shows through his lectures. Attendance is not mandatory although it does give you extra credit points at the end of the semester (along with your iclicker score) I highly recommend this professor.
So far best teacher I had.Take him for biol 189 he is super helpful, science is not my subject but he made it easy to understand, study guides and review days are given to prepare you for the exams.
MR. SILVA is one greater teach he made it easy for me to understand his work. I would highly recommend him to anyone.
Wonderful professor! I am very glad that I was able to take him this semester!
Dr. Silva is an AMAZING Biology teacher! There are mass amounts of information to teach and he does it in an extremely organized, efficient way. He tells you everything you need to know with no hidden surprises. His lectures are very clear, informative and useful! Very engaging and enthusiastic in the materials being taught.100% recommended!
Dr. Nathan Silva is one of the most amazing biology instructor I had. He is very knowledgeable about the material that he is able to teach it to anybody. You just have to put in the time to study the material and do all the class work, and this class is an easy A.
AMAZING! What a great teacher. He was very clear with expectations and so helpful. Goes out of his way to help you understand. Has a lot of fun in class activities that help you remember the concepts for the exams. I really wish he taught more classes. If you don't understand something he will explain it in many different ways until you do get it.
An amazing Professor! Entered the class without prior knowledge of the main topics, left the class with knowledge and desire for more information of the field. Patient, clear, precise and the most polite professor I have ever come across. Willing to assist you in any way possible, for you to pass the class. I wish he taught the upper divisions.
He is absolutely a great teacher! He gives you powerpoints that have many of the answers to your tests. As long as you really study his powerpoint notes you will definitely pass his class. He does require you to show up everyday, but when you do he offers lots of extra credit! I finished with an A. Just show up, study hard, and try your best.
One of the best professors I've ever had. Incredibly kind and caring, a genuinely good person who cares for his students and the impact he has on them. I would absolutely take his class again and do recommend him.
Hes the best professor I have ever had, very organized and know what hes talking about, funny dorky and kind. If you have the chance to take him for any class take him, you will not regret it
This class was extremely easy. The purpose of the class is to help new college students with classes and school resources. At times, the class was extremely boring and repetitive and it seemed like "common knowledge" such as how to take proper notes. The textbook was unnecessary and after the 3rd week I never read it again.
Best Bio Professor!! I took Bio in CSN but withdrew because the professors there don't know how to teach, I learned a lot!! I wouldn't mind taking him again, I would pay to hear his lectures again. I only studied a day before the test and still passed the exams with a C average. If you study more than one day you would pass with an A.
Dr. Silva is amazing! He is accessible any day and at any time! Truly the best professor that I have EVER had! I wish he taught more classes! I would take him 100X over if I could! He loves what he does and explains concepts very clearly!
I highly recommend Dr. Silva. He's an amazing professor.
Hes the best professor to take for biology 189, lectures are clear and easy to understand and as long as you fill in the notes and study you will pass. Attendance is mandatory and he uses clickers to make sure you stay throughout the entirety of lecture. Prelab quizzes are on clickers so be on time to class he will not go back if you are late.
I thoroughly enjoyed Dr. Silva. This class would be difficult if you did not attend & study the material. He gives study guides after each lecture, and will even give you past class exams (not answered, of course). He really knows his stuff and repeats the info to make it stick. He is so very pleasant and kind. Would def recommend him!
Dr. Silva is the best profesor Ive had. He is extremely knowledgeable and makes sure that the students understand all the concepts! Also he will give you all the tools you need to earn an A in this class! I wish He taught AP1, AP2, and Microbiology.
TAKE HIM!!! I can't stress that enough. He's the best professor I've ever met/taken. He explains lessons in a way that is very easy, if not the easiest, to understand. He's the kind of teacher that really "teaches." If you don't show up and listen to his discussions, I doubt you'll pass (unless you study on your own).
Dr. Silva is easily one of the greatest teachers I've ever had! His lectures are amazing, he gives study guides for the test, and provides tests from earlier semesters. There are iClicker questions throughout each class to check for participation/absences. There are also weekly lab quizzes and pre-class videos. Take him if you can!!!!!!!!!
Dr. Silva is a great teacher! He cares for students and is willing to help you if needed. He covers so much information in the lectures but the labs are fun.
A really good professor that cares and is insanely smart. Made the program fun and enjoyable.
Take this professor! He is the best thing that will happen to you because his lectures are fun and easy to understand, making the subject entertaining.
His class is tough, but it gets you ready for future adventures at school. Lots of studying will help you pass. Hes an amazing professor, and I recommend taking this class UNLESS youre willing to do your part.
Here are a few things students must know before taking Dr. Silva: 1) He an amazing professor; caring and incredibly funny 2) YOU HAVE TO WORK FOR YOUR GRADE. He does NOT give extra credit. It is important that you do the study guides and attend lecture. 3) There are 4 exams (super easy if you study), weekly labs, and weekly module locks TAKE HIM!
My grade was based off me not doing the most, which I should've. It's easy to get an A in this class (this will be a regret for me) but I was in a transitional period in my life, it was summer too. It's easy to get an A in here I believe ONLY if you put in time. He really does make you work for it. You really need to study but it will be Possible.
Took this class online during covid. With the difficulties of moving everything online, he did a fantastic job at making material very clear. He provides all the necessary materials needed to pass, and he responds to questions clearly and in a good amount of time. Definitely recommend taking his class!
I took this class for my last elective during the summer. He had clear expectations and made lecture videos for this online course so easy to follow. I loved how they were broken down into smaller sections so my ADHD self was able to make small goals of completing a video, and was a breeze to get through lectures. Is also super understanding. 10/10
Very clear with exam expectations. No textbook is needed. Great professor that truly cares about his students.
Dr. Silva is one of the most understanding, well prepared, and realistic professors I've had. His lectures are engaging and content is easy to comprehend as long as you pay attention. Study guides are provided for each exam and are very similar to the actual test. This man will help you pass BIO189 I promise!! love him!
Mr. Silva is very passionate at what he does. The semester consisted of weekly homework quizzes, power points for lectures and provides digital files, we had a total of 4 exams. He provides study guides for the exams, if you like class with more structure and familiarizing concepts in a clear manner, this might be the class for you. Good luck!
Dr. Silva is one of the BEST professors I have had; he cares about his students. The semester consisted of weekly homework quizzes and power points for lectures, and we had a total of 4 exams. He provides study guides for the exams. I highly recommend him. Good luck!
I would say professor Silvia is very easy going and kind. The course load is very light we do everything together in groups so if your ever stuck you have team mates to help you! Try to come to class every time, its only once a week and attendance matters.
Professor Silva is great! The labs were always straightforward and brief. Attendance is super important. If you don't miss any labs and turn in all your lab worksheets, you'll finish the class with an A+.
Easy and fun class. Has some at home labs that require you to purchase some stuff potentially. Overall a fun professor to have and I learned quite a bit.
Super kind and great! He usually spent 40 mins demonstrating/explaining lab and then most of the labs you could do in an hour. If you do your lab worksheet and super easy pre-lab quiz, you will get an A. He always answered questions well and communicated clearly.
Dr. Silva is one of the most kind professors I've ever had! He explains everything simply and thoroughly, and is always very helpful if you have questions or need help with any of the labs. Weekly lab, quiz, and worksheet.
Super easy class! You have to turn in a worksheet each week, but that's pretty much it
Class Info
Online Classes
100%
Attendance Mandatory
74%
Textbook Required
75%
Grade Predictor
Your expected effort level
Predicted Grade
A-
Grade Distribution
Common Tags
Rating Trend
Stable
+0.13 avg changeRatings by Course
189
5.0
(1)BIO002
5.0
(1)BIOL305
5.0
(1)BIOL101
5.0
(2)BIO189SECTION
5.0
(1)Difficulty by Course
BIO002
4.0
BIO189SECTION
3.0
BIOL321
3.0
BIO189
2.5
BIOL189
2.3