4.4

Rena Petrello

Mathematics - Moorpark College

4.4
Quality
2.6
Difficulty
77%
Would Retake
136
Reviews
4.4
Quality
2.6
Difficulty
4.4
Helpful
4.3
Clarity

77%

Would Retake

136

Reviews

Rating Distribution
Official

5

103

4

12

3

7

2

5

1

9

What Students Say

Rena was an excellent professor who gave me any chance to succeed

MATH25A - 5.0 rating

PLEASE DO NOT TAKE HER PRE CALC CLASS

MO7 - 1.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

86%

Textbook Required

0%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 54 grades
Most common grades:
A (25)
A+ (10)
A- (6)
Grade Distribution
A(35)B(8)C(3)D(0)F(0)A-/B+(8)
Based on 57 reported grades
A: 25
A+: 10
A-: 6
B: 6
Common Tags
Caring (20)
EXTRA CREDIT (16)
Gives good feedback (12)
Participation matters (12)
LOTS OF HOMEWORK (10)
Respected (8)
Inspirational (8)
Skip class? You won't pass. (7)
Rating Trend

Declining

-0.70 avg change
Dec
Mar
May
Aug
Sep
Jan
Last 6 months
Ratings by Course

30616

5.0

(1)

71989

5.0

(1)

MATH1

5.0

(3)

MO1

5.0

(2)

MATH3

5.0

(1)
+39 more courses
Difficulty by Course

2

5.0

ALGM01

4.0

MO7

4.0

MATHMO7

4.0

M25C

4.0

Reviews (136)
5.0
3.0
MATHM01
Oct 9, 2004

Rena is the best math teacher I've ever had!

5.0
1.0
M01
Nov 18, 2004

Rena explains math in the simplest terms which is great for a math-haters. she is SO nice and answers questions without making you seem stupid. TAKE HER!!

5.0
3.0
MATH1
Nov 20, 2004

Rena is a fabulous teacher! She has an amazing amount of patience and is willing to go out of her way to help her students understand math and pass the class! Highly recommended!

5.0
3.0
MATHMO3
Nov 23, 2004

No Comments

5.0
2.0
MO1
Nov 23, 2004

Rena is a great, caring teacher who will explain everything down to the last step to make sure everyone in the class understands it. I highly recommend taking this class. Its fun and easy even for people who dont like math.

5.0
1.0
MATHM03
Grade: Not_Sure_Yet
Nov 26, 2004

Rena is the best teacher ive ever had, shes nice, extremley patient, and goes out of her way to make people understand and doesnt belittle anyone. I wish I could have her teach me every math class from here on.

5.0
2.0
MATHMO3
Nov 30, 2004

She is an AWESOME teacher! Shes very VERY patient and ALWAYS makes sure you understand what is going on. She offers ALOT of extra credit and makes sure everyone passes. HIGHLY RECOMMENDED! Plus shes hot ;)

5.0
3.0
MATHMO3
Dec 2, 2004

If math is your worst subject I would advise you to take her class. You will end the semester ready and eager to take a higher math class.

5.0
1.0
MATH3
Dec 21, 2004

Lots of opportunities to do well. Take her and you'll most likely pass.

5.0
1.0
MATHMO3
Jan 11, 2005

i hated math before this class! she is so clear and makes sure to let you know whats going to be on the test. she lectures and then you have group time! i love her shes the best! i got a 97%

5.0
2.0
MATHMO1
Jan 12, 2005

a very good teacher. Always helped when you needed it. Understranding

5.0
1.0
MATHMO1
Jul 17, 2005

Rena is definently a gifted teacher. She is patient, caring, sweet, funny and makes sure everybody is understanding the work, and that nobody is left behind. She offers extra credit, points for homework, extra help in her office. You are pretty much guarenteed an A or B in her class because she is so talented. Highly recommended!!!!! Great Gal!

5.0
2.0
M03
Aug 13, 2005

Really cool teacher, she's really good looking so you dont get too bored during class. She's pretty easy in terms of turning in homework. If you do your class work in class, sometimes she'll just say put an A on your paper. Her final is totally based off past tests.

5.0
2.0
MO1
Grade: A+
Aug 18, 2005

Very helpful. Take her class if you are not good at math.

5.0
1.0
MATHM01A
Aug 19, 2005

Rena Petrello is the BEST teacher ever!! I never really liked math until I took her class. She makes it fun. Never boring.I wish I could have her for every math class. She explains everything very clearly. She gives extra credit. Her tests are pretty easy....just study. I love her!! I got 103% in the class. TAKE HER!

5.0
3.0
MATHM01
Grade: A-
Aug 31, 2005

No Comments

5.0
3.0
MATH
Sep 1, 2005

No Comments

2.0
5.0
2
Sep 8, 2005

No Comments

5.0
2.0
MATH13
Oct 31, 2005

She is AMAZING. If she could teach me math... she can teach anyone math!

5.0
2.0
MATHM03
Nov 19, 2005

damn she doesnt teach upper level math

5.0
1.0
MATHM13
Dec 1, 2005

GREAT TEACHER! TAKES TIME TO ENSURE THAT YOU KNOW THE MATERIAL. WILL RESPOND EMAILS QUICKLY. DOES NOT CARE ABOUT ATTENDANCE. WILL EVEN HELP YOU DURING TESTS!!! ALSO VERY GOOD TO LOOK AT. =] ALWAYS MADE ME STAY INTERESTED.

5.0
2.0
M25A
Dec 5, 2005

The best math teacher i have had allway helpful and makes the class interesting if you ave to take math take it with her.

5.0
3.0
MATHM25A
May 15, 2006

Awesome teacher. Took her for calculus,which was really tough class. But her avaliability and willingness to help makes it much easier.

5.0
2.0
M25A
May 16, 2006

very nice teacher, very helpful and offers many study sessions for extra help.

5.0
1.0
MATHMO1B
May 16, 2006

Rena was pretty much the coolest teacher ever. She was very clear, very willing to help, she gave extra credit on every test (including the final). I'm so glad she's teaching M03 next semester. I'm taking it with her for sure!

5.0
2.0
M25A
May 22, 2006

great teacher. very helpful.

5.0
2.0
M13
May 29, 2006

By far the best math teacher I have ever had....understands that not everyone is good in math and is always willing to help. I am so happy that I ended my last math class ever with a good experience!

5.0
3.0
MATH1
Aug 3, 2006

this is definately a great teacher! she is willing to make sure that you understand everything, has a ton of office hours, gives out extra credit, and is really clear on her subject.. definately reccomended!

5.0
1.0
MATHMO9
Aug 9, 2006

Shes the great teacher. She really loves what she does and it shows. shes really helpful and cares about how each studen is doing. its an easy A if u do the homework and do relatively well on the quizzes. she assigns homework everyday, but a reasonable amount. theres quizzes at the end of each chapter. and just study for the final. shes there to h

5.0
2.0
MATH01
Nov 17, 2006

Quite possibly the sweetest woman alive. She's helpful, encouraging, and willing to go the extra mile for her students. Her classes fill up quickly for a reason!

5.0
4.0
MATHMO1
Nov 22, 2006

Rena is the sweetest teacher @ moorpark. she is so helpful and explains everything so clearly, just do the homework study your notes from class and you will pass, she is always willing to help students who need it. her office door is always open. Take her she's the best, you won't regret it.

4.0
4.0
MATHM03
Jan 3, 2007

Great teacher but this year she decided to integrate online classes into her curriculum - BIG MISTAKE! When the average grade is a "D" on 4 of 7 tests, there is a problem, especially when the grades dropped as soon as the online classes started! The avg grade for the final was also a "D"! The material is just too complex to be taught online.

5.0
2.0
MATH25A
Jan 30, 2007

Would not have received an A in Calculus if it wasn't for her willingness to help outside of class, and clear way of explaining difficult concepts. Exellent teacher!

5.0
3.0
MATHM01
May 13, 2007

If you hate math, take her. If you love math, take her! She is by far the best professor I've had in college. She cares about her students, she is easily accessed, very patient, and gives you enough material to feel you're really learning something. Gives you a ton of chances for extra credit. Stay on top of your homework, it's easy to fall behind!

5.0
3.0
MATHM03
May 17, 2007

This professor really cares about her students. Her on-line class was really fun and I was able to contact her at anytime through the internet. Just make sure you keep up on the homework because you can easily fall behind, and once you have fallen to far behind in the work its hard to catch back up!!

5.0
2.0
ALG01
May 21, 2007

Rena is the best. She will take her time and explain the material until you get it. She has a lot of ec opportunities and it goes to the test. Take her she's really sweet too!

5.0
2.0
MATHM01
May 23, 2007

I took the math online, and she explains everything really well in her videos. just dont get behind in your homework. Shes really nice!

5.0
1.0
MATHM01
May 26, 2007

GREAT teacher, Amazing, helpful, always answering emails quickly and never lets you feel like it was a stupid questions. She was always there for me. BEST TEACHER I have ever had.

5.0
2.0
MATHM03
Jun 22, 2007

I took Rena for her Online Intermediate Algebra Course and it was amazing. It takes ALOT of work (as does any math class) but not as much work as you think... Spent one day per week on homework, quizzes could be taken multiple times, and tests were graded loosely. Great class. Highly Recommend her!

5.0
1.0
MATH103
Nov 1, 2007

Rena is a great teacher....always available...and very responsive to everyone...

5.0
2.0
PRECASECT
Jan 8, 2008

Best math teacher. I haven't recieved an A in math since middle school. Goes over everything clearly and is willing to help if you don't understand. Tests are pretty easy. Plus drops lowest test and quiz(you can take them multiple times) Only thing negative is that she rushed to much during last two weeks of class, but is a must take class.

5.0
4.0
MATHM03
Jan 13, 2008

Took her online course. PROS: Extremely helpful. Teaches concepts very well. Her videos rule! Test prep sessions get you very ready for tests. CONS: Sometimes her videos weren't ready, meaning you had to use the textbook author videos. Lots of homework. VERDICT: Rena is the BEST, especially if you care to understand the material.

5.0
2.0
MATHMO1
Feb 11, 2008

Great teacher. Very friendly, always willing to help. However, I took the online class and had to drop. This has nothing to do with her, I am just not disciplined enough to take an online math course. So if you are considering her online class, beware! It is very easy to fall behind.

2.0
5.0
MATHM01
May 21, 2010

This class was horrible! She pushed her DVDS, that were unnecessary for class! She goes at a fast pace and gives you lots of homework to do.

5.0
2.0
MATH09
Jan 10, 2011

She is the best

5.0
2.0
MATHM09
Nov 7, 2011

She is the best math teacher I have ever had. She is totally willing to answer questions and go over anything you do not understand. I am taking her for every math class I can. She does go at a fast pace and has a lot of homework. But I am learning a lot in her class. I find her DVD's very helpful.

5.0
1.0
MATHM09
Nov 28, 2011

Rena is the sweetest prof at Moorpark! She has the demeanor of a first grade teacher with the knowledge of a college professor: perfect combo! She is so helpful and clear and she believes all her students have the potential to be A students. Lots of homework (that is how you learn math), 12 online quizes and 5 in-class exams make up your grade.

5.0
2.0
MATHM09
Jan 9, 2012

Rena is very kind hearted, very helpful and will take the time to make sure that you understand the work. She drops the lowest test score and quiz score. She does give a lot of homework work, but it is very helpful. Test's are not that hard and she does give partial credit for the work shown. Over all I would recommend taking her class.

5.0
2.0
MATHM01
Mar 18, 2012

I usually wait til the end of the semester to rate professors, but this is my second class with Rena and I am confident she will not disappoint. She will make you love math! Not sure why she doesn't have a 5.0 overall rating. I look forward to going to this class..yes, a math class! If you take an online hybrid with her, you have to be disciplined.

5.0
2.0
MATHM01
Mar 22, 2012

Rena is seriously the best teacher I have ever had in my whole life! Math has never been my strong point but she makes it so easy. She is very understanding, will work with you if need help. She also extends deadlines when there is a test. As long as you keep up with the homework you should pass with no problem!

5.0
4.0
ALGM01
Apr 3, 2012

I've been a math-moron all my life-I'm in my 50's now and was certain that I could NEVER do Algebra. I'm not only doing it, I'm doing well! This teacher is a miracle worker. Take NO ONE ELSE if you struggle with algebra. She knows how to teach-all this time I thought it was me, when it was all the poor instruction I've had-Thanx, RENA!!!

5.0
3.0
MATH1
Apr 19, 2012

I am in my 40's and have a very difficult time with math. I just will not go in my brain! Rena is an amazing teacher. Her videos are the best, you are able to watch them over and over again. It is a blessing that she will give points on tests when she sees you are going in the right direction. I need all the points possible!

5.0
2.0
MATHMO1
May 2, 2012

Go through the reviews that have already been written. Anything good that has been said is true. She is amazing, the only math teacher who has been able to explain any concept in a way that I (someone who has been failing math since 5th grade) can understand. Do your homework, take quizzes, watch videos, prep for tests.

5.0
2.0
MATHM01
Jul 19, 2012

AMAZING Prof. Took her 2 semesters and would have loved to take her this coming semester but her class is closed. Rena is there for her students and she is easy as long as you show up for class and learn the material. She answered all my questions (even if she was out of town for the weekend). Would recommend her to anyone.

5.0
2.0
MATHM01
Aug 14, 2012

Being a returning student after a 30 year hiatus, I can honestly say that if I had a teacher like her back in the day, I would've finished college. I Love love love her videos! They are so helpful to be able to replay them over and over and it's awesome that they match the textbook lessons. Thank you Rena!

5.0
1.0
MATH03
Nov 20, 2012

AMAZING TEACHER!! AMAZING! She explains math so you can understand it! LOVE that she spends most of class answering hw problems. Grades all your homework w/out checking it. Gives you 3 tries on the online quizzes! Grades VERY WELL! EASY QUICK tests! Study, do all hw, quizzes and you will pass! Love her online videos, they are the best for visual

5.0
2.0
M03
Jun 2, 2013

The best math teacher i've ever had. I've always struggled with math and I never understood it until I took this class. TAKE HER!!!

5.0
2.0
MATHMO3
Jul 9, 2013

AMAZING TEACHER. doesn't make you feel dumb at all when you don't understand something. Always willing to explain more if you need it. Very nurturing and nice! Only downer is that the last month of this class is VERY fast so be on your A game

5.0
2.0
MATHM03
Oct 22, 2013

I love Rena! I hate math so much and failed it all throughout high school, after taking a LONG break from it, I took Rena and she's so amazing! Explains everything a million times if you need it & has to best online videos that help you learn the concepts again if you need it. She also never makes you feel stupid for not understanding something.

5.0
3.0
M03
Oct 28, 2013

Honest Opinion: The MOST AMAZING PROFESSOR IN MOORPARK COLLEGE!! Rena made M03 fun! It's not a easy class since its 5 units but I never been so honored to take her.Her tests aren't that hard or too long,she collects hw everyday which is a relief for me because the more points you get.Unlike other professors.Gives clear lectures!& helps u! TAKE HER!

5.0
1.0
M09
Nov 10, 2013

Rena teaches the class as if you know nothing. Best instructor ever! Very sweet and generous grading scale. Allows extra credit on test day.

5.0
2.0
M09PREALGEBRA
Nov 18, 2013

Rena is THE BEST math teacher i have ever had. She teaches so clearly and is very understanding and helpful when you don't understand something. Her tests are her favorite problems from our homework so its a for sure pass. If you did'nt catch something during her lecture she has these amazing videos. She is also just a really sweet person who cares

4.0
3.0
MATHM03
Dec 12, 2013

The only math class I've ever passed. I wish we had more time to go over each section but overall, she was a good teacher. Never makes you feel bad for not understanding something and has a tutor in the classroom with us if we ever need help! And her videos are life saving!

3.0
5.0
M03
Dec 23, 2013

Class is not easy. I did all of my homework, extra credit, quizzes, attended class faithfully. Note* Dont expect an easy A. She will FAIL you if you don't do well on the tests. She does not give partial credit for partially correct answers.

5.0
3.0
MATHM09
Jan 3, 2014

Really liked Rena. Supper nice lady! One of the best teachers I have had. She made learning math easy. She also has videos to show you how to solve the problems. So you will not be stuck while doing homework. Kinda fast paced but was able to keep up. She gave lots of extra credit to help improve your grade.

5.0
2.0
MATHM09
Grade: A
Jun 16, 2014

This was a hybrid class half on line and half in class. Rena was very helpful and the videos were amazing.

5.0
1.0
MATHM09
Grade: A+
Jul 7, 2014

I have always struggled in math. Professor Petrello's way of teaching math made me truly enjoy learning it. She makes everything so simple and relates it to the world. She is AMAZING!!!! With all math classes, there isn't an easy A. You have to keep up and do all the work. And, your hard work will pay off. I never thought i'd get an A in math. Yay!

5.0
2.0
M09
Grade: A
Aug 4, 2014

Amazing Professor. Exactly how a math class should be taught. Supportive, interesting, explains concepts thoroughly, and enjoys teaching. I actually enjoyed math and understood the concepts! Will be taking her again in the Fall. Highly recommend. Very wonderful and informative and Moorpark is LUCKY to have such an amazing teacher!

5.0
1.0
M09
Aug 11, 2014

Loved her! She is an absolutely great math teacher! She's so sweet, she reminds me of a fairytale character. Eager to help and goes at a pace slow enough to understand! Highly, HIGHLY recommended! I plan to take her again!

5.0
1.0
M03M01
Grade: A+
Dec 9, 2014

I Love professor Rena, She is great and gives enough help to get the grade your achieving for. I would take her class until cal 3 or higher if she would teach it.

4.0
3.0
70055
Dec 18, 2014

Rena is an amazing professor! I took her compressed m01m09 class . We had ton's of hw assignments and went through chapters quickly but she was very clear and thorough in explaining the math problems and is more than happy to help students out if they did not understand the lesson. She care's about her students succeeding in math!

5.0
3.0
71989
Grade: B
Dec 18, 2014

I took a combined math 09 and math 01 class with Rena, it was fast paced and a lot of work, but Rena was an amazing teacher. She was able to teach in way for people to understand. I have never liked math class, but it was very enjoyable. If you do the all the homework, extra credit, and put in the hours studying, you will pass.

5.0
2.0
M03
Grade: B
Dec 20, 2014

I had Rena for M03. I truly feel if you want to learn, pass and succeed in this course than she is your only hope. She is probably the best professor on campus in every aspect. Just remember this is a very condensed course! Be at class everyday!!!! Do your homework honestly to pass all tests. She made me love math, and I didn't at all prior to her.

5.0
3.0
30616
Grade: A
Jun 9, 2015

Rena was the perfect professor for my first semester in 25 years. I took the condensed M01 and M03 combined so very fast paced. Lectures are clear and if you are struggling she is very happy to help. Lots of homework but it really prepares you for tests. Tests are reasonablefollow her teaching. No surprises. Flexible. Love the extra credit!

3.0
2.0
MATHMO3
Grade: Not sure yet
Oct 12, 2015

Rena is a good teacher. This class was a refresher course for me. I sort of enjoyed her class. She gives 4 tests (not including the final) and she will drop the lowest one. Group work every class so make sure your there because the more points the better. She gives tons of examples and she will confuse you alot. Homework is online through ALEKS

4.0
3.0
MATHMO3
Grade: Not sure yet
Nov 30, 2015

Rena is a great teacher. At times she can confuse u with 2 many examples. She sends you the test key after every test and offers some extra credit. Make sure u show up everyday. The group work is very important and can make or break your grade. The online homework is through ALEKS .com. I recommend going to her office hours. BOOK is ALWAYS NEEDED!

5.0
1.0
MATH01
Grade: A
Jan 11, 2016

Rena is the finest of the fine! In all areas! Beauty, mathematics, photography, sense of humor, knowledge, motherhood, you name it! I couldn't have her every semester but still referred to all of her awesome, step-by-step study guide videos that are located on Moorpark's handy and helpful website. Def take her, you'll pass!

4.0
3.0
M03
Jan 15, 2016

Great teacher can get a bit confusing at times but always there to help. Uses the ALEXS program which made me feel like I was being home schooled. ALEXS is an extremely frustrating website which makes homework take three times as long. I used to look forward to math and homework until using ALEXS. Wish we could just use the traditional textbook.

3.0
4.0
M03
May 23, 2016

Rena Petrello is very nice as a person but not the best teacher. Her lectures are very confusing as she gets tripped up in her explanations and almost confuses herself quite often.I found the textbook and YouTube to be much more clear and helpful when it comes to the subject material.

5.0
3.0
M09PREALGEBRA
Jun 9, 2016
Would take again

A great teacher that will take time out of her day to help you out. She really wants you to understand math and does just that. She gives extra credit to help you out. Yes, there is a lot of homework but practice makes perfect ;)

5.0
3.0
M09
Grade: A
Jun 23, 2016
Would take again

Love the professor!! Lots of examples so you understand. Easy to get ahold of for questions. Lots of homework, but it's math. Took her a year ago. All math classes have lots of homework. If you think this is alot of homework just wait until you take more advanced classes, now that's alot of homework.

5.0
3.0
M03
Nov 12, 2016
Would take again

I am so grateful for this woman! She is inspirational and does everything she can to help. I do not excel in math to say the least and I was able to pass due to her lectures. She actually makes math interesting and if you do all your homework then you should pass. She explains everything clearly and wants to help. Definitely worth taking.

Respected
Inspirational
Amazing lectures
4.0
3.0
M01
Nov 14, 2016
Would take again

Took her class my first year, and I'm so lucky to have gotten a professor like her! She will explain the process of every bit of math in detail, and will stop in the middle of the lecture at any point to answer a question. Fantastic for first-year students or those who struggle with math!

Skip class? You won't pass.
Caring
LECTURE HEAVY
4.0
3.0
M01
Nov 29, 2016
Would take again

She is a nice professor and she truly cares about her students no matter who they are.

Gives good feedback
Inspirational
Clear grading criteria
1.0
2.0
M03
Aug 30, 2017
Wouldn't take again

3rd week and she hasn't published the course on canvas, can't access the syllabus or anything. Asked about grade in class, said it wasn't important this early on. Asked about canvas, said it was a very low priority. If you're 10minutes late to class she said it counts as an absence. No clue what's going on with her or this course.

1.0
5.0
MO7
Grade: C
Nov 2, 2017
Wouldn't take again

PLEASE DO NOT TAKE HER PRE CALC CLASS. You will dig yourself in a hole. She can not teach for the life of her, and has no idea what she is talking about half the time. Not to mention that she really could care less on how you do. It is almost like she wants kids to fail. If you are trying to transfer anywhere please save yourself. I have NOT missed

Tough Grader
LOTS OF HOMEWORK
TEST HEAVY
2.0
4.0
MATHM07
Grade: A-
Nov 5, 2017
Wouldn't take again

First time she has thaught precalc in 17 years and we were her unfortunate guinea pigs. I don't think she had any clue what she was doing. Always runs out of time at the end of class, you know what she does? she writes an entirely unfamiliar example on the board in a few seconds and expects us to know it for the upcoming test w/o any explanation.

Skip class? You won't pass.
LOTS OF HOMEWORK
5.0
3.0
MATHM07
Grade: A-
Nov 18, 2017
Would take again

I couldnt disagree with the last comments more. Rena is an awesome teacher and explains really well! Its a tough course - but I like the four day per week pace since I learn less material each day than I would have in the two day/week class. I wish she was teaching Calc I next semester.

Respected
LOTS OF HOMEWORK
Caring
1.0
5.0
M01
Dec 1, 2017
Wouldn't take again

more hw than usual, rena stress after a short while from the whole class didnt get it, told class to takeM09, encourage student to drop many times,Rena doesnt review pre test students does it on their own,wont help with test,student tutor teaches better than Rena,take only for review,test are hard,do everything right wont pass if test score low.

Tough Grader
LOTS OF HOMEWORK
Tests are tough
3.0
3.0
M07
Grade: B+
Dec 8, 2017
Wouldn't take again

Very nice professor, but at times she seemed like she didnt know what she was talking about. Takes very long to do lectures and often runs out of time at the end of class and doesnt get to finish the lesson. Tests arent too bad, but theyre the main component of your grade so you need to do well on them to get an A. Offers minimal extra credit.

GRADED BY FEW THINGS
3.0
5.0
M07
Grade: A
Dec 16, 2017
Would take again

You have to work VERY hard for your grade. U will not pass without an enormous amount of work. Perhaps this is normal for an M07 class. The material is difficult, but I wont blame Rena for that. U want an A? Be prepared to drop everything for it. She is an amazing woman with a vast knowledge of math. I do believe this class is just incredibly hard.

LOTS OF HOMEWORK
TEST HEAVY
Caring
4.0
4.0
M03
Dec 16, 2017
Would take again

Rena is the sweetest lady ever. I previously took this same class but had to drop, but I was able to do semi well in this class! Tons of homework, she will assign at least 80 problems per night. Her tests were problems she made on her own, does give partial credit, and replaces final exam score with your lowest test grade! I wish she taught stats

Skip class? You won't pass.
LOTS OF HOMEWORK
EXTRA CREDIT
5.0
2.0
M03
Grade: A
Jan 2, 2018
Would take again

I can't lie when I say Rena was the best Math teacher I've ever had. She is very well articulated. I was excited for her lectures because I knew for a fact I'd learn something new. Provided an excellent foundation for my future in math. If you do homework and pay attention in class, you will pass. Such a sweet lady as well. Take this class!

Gives good feedback
Inspirational
Amazing lectures
5.0
2.0
M03
Grade: A+
Jan 9, 2018
Would take again

Best math teacher i've ever had. Really sweet, caring, she wants you to understand the material; she isn't just lecturing to hear herself talk like some professors. She will work with you if your grade is borderline, but you have to put in the effort as well. LOTS OF EXTRA CREDIT!!!!

Gives good feedback
EXTRA CREDIT
Would take again
1.0
5.0
MATHM25A
Feb 7, 2018
Wouldn't take again

If you like crazy blonde women then this professor is for you. She is literally the worst teacher Ive ever had for math. She grades hard and gives a lot of hw on stuff she never taught in class. She really likes her way of teaching something otherwise its half credit She always forgets concepts from M07 and expects the students to cover her. 1/10

Tough Grader
TEST HEAVY
LOTS OF HOMEWORK
1.0
5.0
M07
Grade: C-
Feb 14, 2018
Wouldn't take again

If you want no mercy, questions on tests that she cant even answer, and be taught incorrectly, this is that class for you. LOL DONT TAKE. She cant teach anything above M03.

Tough Grader
LOTS OF HOMEWORK
TEST HEAVY
1.0
5.0
M09
May 15, 2018
Wouldn't take again

Bad, terrible, the worst, awful, the list just goes on and on with this one. Man talk about bad teaching, she clearly doesn't understand math for starters, her tests are extremely difficult, she gives out hard math problems on tests, and to top it off, they have nothing to do with her test problems and even the final which is the worst of them all.

Tough Grader
LOTS OF HOMEWORK
TEST HEAVY
3.0
4.0
M25A
May 17, 2018
Would take again

Grade was only made up of 4 tests , final, and a couple of homework quizzes. Theres A LOT of homework, assigns it every class, but she doesn't give points for it. If you don't do the homework you'll pretty much fail the class. few problems on tests were ones she never went over or if she did they were way harder on the test.

5.0
1.0
M01
Grade: B
May 18, 2018
Would take again

Rena is actually the best professor Moorpark College has for math. Shes an expert at clear instructions. She cares a lot about her students and if you have a question she is more than happy to rephrase it. She gave a ton of extra credit and I struggled with math in the past and I was so happy to have had her for a professor. I love the sweet lady!

Skip class? You won't pass.
Inspirational
EXTRA CREDIT
5.0
3.0
MATH25A
Grade: B
May 20, 2018
Would take again

Rena was an excellent professor who gave me any chance to succeed. She was available every time I went to her office hours for questions/concerns. I honestly cannot thank her enough for her patience, kindness, and generosity. This class was not easy but she did make it very possible for me to get a good grade. I would definitely take her again.

Gives good feedback
ACCESSIBLE OUTSIDE CLASS
Caring
5.0
3.0
M25A
Grade: B
May 21, 2018
Would take again

Prof. Petrello is an amazing. She taught the class very well and managed her time. It was because she had good notes and her lectures were understandable. What's good is that her test are hard, but totally manageable especially if you do all of your homework and review your notes. Not only is she a great prof, but she is also an amazing person.

Gives good feedback
Amazing lectures
Caring
5.0
3.0
MATHM25A
Grade: A
Sep 17, 2018
Would take again

I absolutely adored her. She incredibly sweet and a fantastic teacher. She is clear, straight-forward, and makes difficult concepts easy. She made math enjoyable. Her Calc class builds on itself. She provides FANTASTIC lecture notes online. There is a significant amount of homework, but it is only for YOUR BENEFIT. The homework preps you for tests.

Skip class? You won't pass.
Amazing lectures
Caring
5.0
3.0
MO7
Grade: A+
Sep 19, 2018
Would take again

She is really good at answering questions and taking her time to further explain simple or tricky math terms. She lets you know when tests and quizzes are and all the homework is not graded, but she only assigns homework you can check the answers to. She also takes the time to go over any questions on the homework that people have. She's respectful

Respected
Clear grading criteria
Caring
5.0
2.0
M03
Grade: A
Oct 9, 2018
Would take again

Such a sweet person! One of the best math professors Ive had so far. She really cares about you understanding the subject

Gives good feedback
Caring
EXTRA CREDIT
5.0
2.0
M07
Grade: A
Oct 29, 2018
Would take again

Professor Petrello is the sweetest math professor you will ever have and actually cares about her students. The homework is not mandatory but I recommend doing it if you want to learn the material. She also offers extra credit usually for every test as an assignment to do before the test. The only downside is she often makes mistakes while teaching

Gives good feedback
LOTS OF HOMEWORK
Caring
4.0
4.0
MATHMO7
Nov 16, 2018
Would take again

I love the way she makes it fun and enjoyable for all. She comes to class ready to teach and expand the minds of her students. She makes really complicated questions and ideas into really simple and understandable concepts

Respected
Participation matters
Skip class? You won't pass.
4.0
4.0
M25B
Grade: A
Dec 31, 2018
Would take again

She is a very caring teacher. Almost every test had one or two extra credit options at the end. She dropped the lowest two quizzes and replaced your lowest test grade with your final exam grade. Sometimes makes mistakes when solving problems on the board, but encourages students to correct her when she does(do this in a respectful manner).

Gives good feedback
Participation matters
EXTRA CREDIT
3.0
2.0
MATHM25B
Grade: A+
Jan 1, 2019
Would take again

Good professor. She always cares about her students. Sometimes it will be hard to understand her lecture but she will always answer questions in class and outside of class. Tests are not too hard. If you do the homework and ask her a lot of questions, you should be able to pass the class.

ACCESSIBLE OUTSIDE CLASS
Caring
LECTURE HEAVY
5.0
3.0
M25B
Grade: B-
Apr 3, 2019
Would take again

Professor Petrello is an outstanding professor who takes as much time as possible to make sure that you understand the material and this clearly shows when the tests come around. She is available during her office hours which helped me A LOT! I could not thank her enough for believing in me despite my constant struggles with my performance in class

Lots of homework
Accessible outside class
Caring
2.0
4.0
M25B
Grade: B
May 1, 2019
Wouldn't take again

Her lectures are very short and simple yet tests on tricky questions. will ask you things she never touched on in class. imo doesnt prepare you at all.

Get ready to read
Participation matters
2.0
4.0
M25C
Grade: A
Dec 2, 2019
Wouldn't take again

Lectures are extremely useless. Won't prepare you for the test, and the review will (hopefully) give you 20% of the test. Poor preparation for the material, prepare to teach yourself similarly to most professors at moorpark.

Lots of homework
Accessible outside class
Get ready to read
1.0
3.0
M25C
Grade: A+
Dec 5, 2019
Wouldn't take again

Absolutely the worst lecturer for calc c... makes a lot of mistakes and sometimes she seems clueless. You have to teach yourself.. on the good side, if you really understand hw you can get an A in the class (unlike Rubinstein). She makes us do useless group work that wastes time and she calls me out for not showing up when I have the best grade

Participation matters
1.0
4.0
M25C
Dec 5, 2019
Wouldn't take again

Poor teaching style her homework does not reflect the lectures. She might be good for classes like M07 and whateever but she is terrible for calculus. Tests are easier than other calc teachers at moorpark tho. Prepare to spend a lot of time teaching yourself and if you are in the 7:30am class good luck staying awake

5.0
3.0
M25C
Grade: A
Dec 14, 2019
Would take again

Show up on time and listen through lectures. Although the lectures are slow, they are great introduction to the lesson subject. For tests, do the homework and test review. This will help you a great deal on the test. Tests are very fair and easy because they are based on how the homework is phrased. Don't memorize, understand what you are doing.

Participation matters
Inspirational
Caring
1.0
5.0
M25C
Grade: A
Feb 25, 2020
Wouldn't take again

Lets just say, the tests were nothing according to her notes or homework. As well as her notes were always wrong, as she hasn't taught M25C in over 10 years, and she would always say "Ill change that before I teach next semester!". Awful.

Lots of homework
So many papers
Tough grader
5.0
5.0
M25C
Grade: A
Feb 26, 2020
Would take again

For a very difficult subject, Rena did a good job of explaining the material and is always there if you need help. She assigns a lot of homework but it the best way to study for her very difficult exams.

Lots of homework
Caring
Tough grader
5.0
2.0
M01
Grade: A
Jul 25, 2020
Would take again

I took Math M01 with Professor Petrello in 2016 or so. Boy, I made the best choice. She is very patient and makes sure u understand the subject. Awesome professor. She is the few GOOD professors Moorpark College still have around.

Gives good feedback
Lots of homework
Caring
5.0
3.0
M12
Nov 13, 2020
Would take again

I absolutely adore this woman and I recommend her class to anyone whos worried about having a bad experience in college. She is the sweetest and shes so informed. She really does the best job with explaining things thoroughly, taking time to consider the students and how theyre doing, but also shes very passionate and knows what shes doing.

Inspirational
Amazing lectures
Caring
5.0
3.0
MATH12
Grade: A
Dec 19, 2020
Would take again

Rena is amazing, and so is this class! if you need math m03 skip it and take math12 with Rena. She is so understanding and you can get an A with average effort. A few papers, presentation, and homework is all. Just try and show up youll do fine.

Lots of homework
Accessible outside class
Clear grading criteria
5.0
4.0
MATH12
Grade: A
Jun 21, 2021
Would take again

Great teacher. Inspired me to be a teacher. So kind and there for you!

Gives good feedback
Respected
Inspirational
4.0
4.0
MATHM12
Grade: A
Nov 10, 2021
Would take again

I hate math... but I loved Math M12 with Professor Petrello. She is so sweet and really helped make math enjoyable. Her lectures are fun, never boring, and you really learn a lot. There are so many life lessons I learned from M12. This is the kind of math that I will actually use. I wish I could have Professor Petrello for ALL of my math courses!

Respected
Participation matters
Amazing lectures
5.0
2.0
M01
Grade: A
Dec 1, 2021
Would take again

Loved her class, she's really sweet and does her best to make sure everyone knows what to do. Attending her class wasn't mandatory (online class) and it was still an easy A. Just do your work and ask questions when you have them.

Respected
Caring
EXTRA CREDIT
4.0
2.0
M12
Grade: A-
Dec 14, 2021
Would take again

Participation is the biggest part of her class. the content on the homework is relatively easy, and projects are graded lightly. Would recommend

Respected
Participation matters
Graded by few things
5.0
3.0
MATHM12
Grade: C
Dec 18, 2021
Would take again

Homework is very simple although if you did not purchase the textbook you'll need to pay for this website where the homework is at. I paid 69 but in the end, she gives a lot of extra credit. Her projects are not difficult they're actually fun. Always attend the zoom meetings, it's worth about 145 points so your grade will drop.

Lots of homework
Skip class? You won't pass.
EXTRA CREDIT
5.0
2.0
M12
Grade: A
May 10, 2022
Would take again

Petrello is a very nice person. She does have some group projects, but they are set up to get to know your classmates. She does offer a good amount of extra credit, which is pretty nice. The class itself in my opinion is pretty easy, and you can tell she does care for her students.

EXTRA CREDIT
Group projects
Caring
5.0
1.0
M12
Grade: A+
May 18, 2022
Would take again

This was the best math professor I've ever had. She is very nice and knows exactly what she's talking about. She explains things very well and there were no tests. You do have projects instead and have homework from the book. Textbook was $100, but I definitely recommend this class and this is a great class to take to learn math in the real world.

Amazing lectures
Clear grading criteria
Accessible outside class
5.0
2.0
MATHM12
Grade: A+
May 25, 2022
Would take again

I was nervous coming into this course being that I have not done math in many years. I loved how this was not your "typical" math class. I also loved the fact that she let's you do a lot of extra credit and there is no real due dates. You work at your own pace. I was able to work weeks in advance, which was awesome!

Participation matters
EXTRA CREDIT
Gives good feedback
5.0
2.0
M12
Grade: A
Aug 12, 2022
Would take again

Professor Petrello is awesome! By far the best math teacher and class I've had!

EXTRA CREDIT
Amazing lectures
Gives good feedback
5.0
2.0
M12
Grade: A
Dec 17, 2022
Would take again

rena is amazing. shes so kind and a wonderful prof. she will give extensions on everything. clearly passionate about teaching. m12 specifically is so good. she created this course herself and teaches it with ease. though you still have to put in some work for the assignments she is so great and I'm class i chose her course !!

EXTRA CREDIT
Amazing lectures
Caring
5.0
2.0
MATH12
Grade: A
Mar 4, 2023
Would take again

Loved her class! Easy A but I learned so much. Learned about real-world stuff! Thank you!!!

Clear grading criteria
Caring
Lecture heavy
5.0
2.0
M12
Grade: B+
May 5, 2023
Would take again

She is such an awesome professor so sweet and caring. I'm in her in person class but due to some health issues I've had I had to basically switch to online. She was super understanding about it. You get points for attendance. She allowed so much extra credit and didn't have due dates which helped me a lot because I fell behind. Take her class

EXTRA CREDIT
Caring
5.0
2.0
MATHM12
Grade: B-
May 22, 2023
Would take again

Rena is an excellent professor. She's very easy to talk to and she is super accommodating. Easy class, all homework is online.

EXTRA CREDIT
5.0
3.0
MATH12
Grade: A
Aug 13, 2023
Would take again

A positive force, and an empathetic person. She explains math logically and applicably, and tries to understand your personal logic and application--music, art, nature, etc. Pay attention to her lectures, do the homework (and the extra credit!), and communicate with her what you don't understand, and you will succeed in her class.

Participation matters
EXTRA CREDIT
Amazing lectures
5.0
1.0
M12
Grade: A+
Sep 15, 2023
Would take again

a decent amount of homework. It might've been that I took the 8-week class, but easy math for those who aren't good at math. Low key confusing the math, it's not real math but its unlimited takes so you can easily get an A. Shes a really nice professor too! Okay with late work and will let you take extra time to catch up. wants you to succeed

Participation matters
EXTRA CREDIT
Test heavy
5.0
4.0
M12
Grade: A-
Jan 26, 2025
Would take again

Great professor! Taught me how important it is to research and guide others.

Participation matters
EXTRA CREDIT
Beware of pop quizzes
5.0
3.0
MATH12
Grade: A-
Jan 26, 2025
Would take again

Class of the ‘20s. Rena taught me a lot about the importance of doing your research, realistically, and the resources to look for when you are researching. (Millennium Fillennium) File & Do Your Work! - MMXXII

Get ready to read
Participation matters
Inspirational
Class Info

Online Classes

100%

Attendance Mandatory

86%

Textbook Required

0%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 54 grades
Most common grades:
A (25)
A+ (10)
A- (6)
Grade Distribution
A(35)B(8)C(3)D(0)F(0)A-/B+(8)
Based on 57 reported grades
A: 25
A+: 10
A-: 6
B: 6
Common Tags
Caring (20)
EXTRA CREDIT (16)
Gives good feedback (12)
Participation matters (12)
LOTS OF HOMEWORK (10)
Respected (8)
Inspirational (8)
Skip class? You won't pass. (7)
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Ratings by Course

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4.0

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