Professor

Juana Sanchez

2.2
Overall Ratings
Based on 231 Users
Easiness 2.0 / 5 How easy the class is, 1 being extremely difficult and 5 being easy peasy.
Workload 1.9 / 5 How light the workload is, 1 being extremely heavy and 5 being extremely light.
Clarity 2.1 / 5 How clear the professor is, 1 being extremely unclear and 5 being very clear.

Reviews (231)

1 of 19
1 of 19
June 21, 2018
Quarter: Spring 2018

June 20, 2018
Quarter: Spring 2018

Half of the junior years who were supposed to take 102B class on this spring quarter jumped straight out to 102C from 102A because of her. There were 105 spots for this class but only 50~60 enrollments filled. I've already heard notorious rumors of her but signed up for this class. She personally treats her students rudely as well as her poorly constructed exams & homeworks ruin your GPA.

In her lectures, she points out not to use smartphone, laptop, and any electronic device during the lecture. The point is, she points out EVERYTIME when someone uses them. It was so distracting she spent 3~5 mins of her lectures on pointing out someone not to use their laptop.

I got my points off on my homeworks for all the ridiculous reasons. Like I lost 10% of my homework scores for not putting ############### sign between questions, another 10% for not saying this is confidence interval(The question was only asking about the mean and the confidence interval). I used to lose my points for not having well-explained comments rather than wrong codes, but her homeworks have full of typos even an important formula such as gamma distribution. It was pretty painful to see losing decent amount of credits for these kind of trivial reasons.

I believe her exams were the worst. Given 50 minutes for the midterms, we were asked to solve time-consuming questions like getting the inverse of 4x4 matrix w/ decimals. What is the point of calculating the inverse of 4x4 matrix w/ numbers like 1.616, -3.7534, 5.6134 for this class??? The students all failed not because of understanding the concepts for statistical programming, but unnecessarily time consuming matrix and derivative problems on the test. She is more interested in failing her students than teaching computational statistics.

June 7, 2022
Quarter: Spring 2022

Going to be blunt, and a little rude.

May 18, 2022
Quarter: Spring 2022

If I was to blow my brains out, I think this class would be #5 on the list of things that made me blow my brains out.

It is incredibly frustrating the amount of work this class is. Notice how other sections fill up first. The midterm averages of other sections are significantly higher, have less material, less work, and less mental torture.

If I could equate this class to a piece of Greek mythology, I am Sisyphus and Professor Sanchez is the boulder.

I fucking hate it here.

April 3, 2015
Quarter: N/A

The thing I love about Professor Sanchez is that she is the best at making concepts easy to understand:

(directly from 02/20/2015 lecture)

SANCHEZ: So, would you say that the people that are in the ‘college or higher’ group are independent of the people that are in the ‘high school or lower’ group? Do you think they are independent? Yes or no? Be, be courageous.

STUDENT: (shy) Yes.

SANCHEZ: Yes, yes. That’s it. Yeah. No, they are not. They are independent, right? No. They are not independent. Right? What did you say. Yes or no. No. You said yes they are independent, or yes they are not?

STUDENT: Independent.

SANCHEZ: Yes. They are independent. No. Yes. They are not independent, okay? They are not independent. I mean, sorry. Yes. They are independent.

Fuck this class.

STATS 102B
COVID-19 This review was submitted during the COVID-19 pandemic. Your experience may vary.
April 13, 2020
Quarter: Spring 2020

I don't say this lightly. She is by far the worst teacher of knowledge I've ever witnessed in my entire life, perhaps throughout the entire existence of human history. She is, without a doubt, 95% of the reason for my crippling depression. The other 5% is the death of my dog. You heard it right folks, she makes me 19 times more depressed than the death of my dog. Her homework ruins my days, make me fall into an existential crisis and makes me cry. I truly cannot tell you this feeling of dread I experience thinking about her class, it's a feeling I hope none of you reading this will ever need to experience.

March 22, 2020
Quarter: Winter 2020

Professor Sanchez is infamous among the stats professor and I took her class knowing it was going to be a very rough experience. My expectation for her was low as yours will probably be, so surprisingly she did exceed my expectations. She is not as bad as other reviews describe as long as you follow her "rules".

Some things to note:
1) She takes attendance every single class. Sometimes twice every class! Sometimes it's on a sign in sheet, sometimes she roll calls, sometimes she tells you to turn in a in class exercise, sometimes she calls on random student's name to answer a question, sometimes it's all of the above.
2) There are a lot of in class participation points throughout the quarter based on the correctness of your answer and you will most likely not be given much time for those. However she is nice enough to let you drop the lowest two.
3) She assigns official homework once every two weeks. BUT, there is often smaller, shorter take home exercises that she will assign in class(and she may or may not post on CCLE about it). So pay attention in class!!
4) There are two quizzes in addition to one midterm and one final. She takes these assessments very seriously and will write you many many many bullet points on rules to follow. FOLLOW THEM! DO NOT OPEN YOUR BACKPACK WHEN YOU ARRIVE IN THE EXAMINATION ROOM. One time she was very annoyed at a particular student who looked through his backpack inside the classroom before she handed out the assessment. She yelled at him in front of the whole class and order him to sit at the very front.
5) Homework needs to be turned in within 10 minutes of starting class or else she will begin to deduct points. Try to turn it in BEFORE CLASS BEGINS, or else your P(getting yelled at ^ humiliated) = 1.

Despite my comments above, as long as you follow her rules and pay attention in class, have a decent TA, attend office hours, you will do just fine get at least a B+. She gets through a lot of material and you will feel like you've mastered a lot of material after her class. You learn a lot, more than other more "easy" stats 100a professors. And a bonus, she is quite entertaining, the way she talks, her sarcasm, and her occasional analogy of probability and life/death is quite accurate. She is very intimidating, but deep down, I believe Juana truly cares for her students.

Shout out to Lenny for being an amazing TA!

March 26, 2020
Quarter: Winter 2020

Stats 100A is not supposed to be that hard a class. Content-wise it's not the worst, but Professor sanchez makes it way harder than it needs to be. She grades on an absolute scale where an A is 95+ and the range for B+ is 88-89 but B is 80-87. She overloads us with work, there is always lengthy homework, participation quizzes or random participation assignments due. She basically had 3 midterms, although she calls 2 of them "formal quizzes" and even though they're easy on content, it's IMPOSSIBLE to finish them comfortably in time. Lengthy computations make it impossible to score well in these exams, and a couple points here and there can get you down by 3 grades. She's also extremely intimidating, and unnecessarily condescending. I respect that she wanted us to be thorough with the material, but she treats us as if Stats 100A is our only, and hardest class, and gives too much work. I took this class thinking how hard can she make 100A, but trust me, avoid it if you can.

March 22, 2020
Quarter: Winter 2020

She's not as bad as people say! If you follow instructions and don't mess around, you'll be fine in this class.

I think a lot of the bad reviews just come from miscommunication/misunderstandings. There's definitely somewhat of a language/cultural gap between Prof Sanchez and her students, but if you treat her with respect, she will do the same. She is honestly very nice towards her students and cares about our success.

I emailed her multiple times and she was always willing to help and added words of encouragement and niceties in each of them that a lot of the reviewers below won't tell you about.

She is somewhat disorganized and goes extremely fast in lecture! Pay attention or get left behind (I often found myself in this situation multiple times). The homework is easy and can be finished in a couple hours at most, but her quizzes and tests often are too long to finish (in my opinion) without rushing super fast. Practice proofs! That's what separated me from getting a way better grade in this class.

The book isn't really necessary. You need it a few times in the class when her homework questions (maybe one or two per fifteen question assignment) ask you to go to the book for reference, but it's not worth 60-70 bucks, just go look at it rq in the Science and Engineering Library.

If anything, don't procrastinate taking your Stats 100a class because Sanchez is the only professor taking it (i almost did because of her reviews), just push through and you'll be fine.

March 27, 2020
Quarter: Winter 2020

Take Sanchez If:
-You learn better with structure and someone constantly keeping you in check
-Dont mind going to class
-Learn by practicing
-Want to learn the basics of probability really well

Don't Take Sanchez If:
-You prefer to cram the night before tests

Her class isn't hard, you are just going to have to do a lot of problems. The upside is the night before each test you will barely have to study because Sanchez already made you sure you've done each problem literally 10 times.

STATS 102B
Quarter: Spring 2018
June 21, 2018

STATS 102B
Quarter: Spring 2018
June 20, 2018

Half of the junior years who were supposed to take 102B class on this spring quarter jumped straight out to 102C from 102A because of her. There were 105 spots for this class but only 50~60 enrollments filled. I've already heard notorious rumors of her but signed up for this class. She personally treats her students rudely as well as her poorly constructed exams & homeworks ruin your GPA.

In her lectures, she points out not to use smartphone, laptop, and any electronic device during the lecture. The point is, she points out EVERYTIME when someone uses them. It was so distracting she spent 3~5 mins of her lectures on pointing out someone not to use their laptop.

I got my points off on my homeworks for all the ridiculous reasons. Like I lost 10% of my homework scores for not putting ############### sign between questions, another 10% for not saying this is confidence interval(The question was only asking about the mean and the confidence interval). I used to lose my points for not having well-explained comments rather than wrong codes, but her homeworks have full of typos even an important formula such as gamma distribution. It was pretty painful to see losing decent amount of credits for these kind of trivial reasons.

I believe her exams were the worst. Given 50 minutes for the midterms, we were asked to solve time-consuming questions like getting the inverse of 4x4 matrix w/ decimals. What is the point of calculating the inverse of 4x4 matrix w/ numbers like 1.616, -3.7534, 5.6134 for this class??? The students all failed not because of understanding the concepts for statistical programming, but unnecessarily time consuming matrix and derivative problems on the test. She is more interested in failing her students than teaching computational statistics.

STATS 100A
Quarter: Spring 2022
June 7, 2022

Going to be blunt, and a little rude.

STATS 100A
Quarter: Spring 2022
May 18, 2022

If I was to blow my brains out, I think this class would be #5 on the list of things that made me blow my brains out.

It is incredibly frustrating the amount of work this class is. Notice how other sections fill up first. The midterm averages of other sections are significantly higher, have less material, less work, and less mental torture.

If I could equate this class to a piece of Greek mythology, I am Sisyphus and Professor Sanchez is the boulder.

I fucking hate it here.

STATS 10
Quarter: N/A
April 3, 2015

The thing I love about Professor Sanchez is that she is the best at making concepts easy to understand:

(directly from 02/20/2015 lecture)

SANCHEZ: So, would you say that the people that are in the ‘college or higher’ group are independent of the people that are in the ‘high school or lower’ group? Do you think they are independent? Yes or no? Be, be courageous.

STUDENT: (shy) Yes.

SANCHEZ: Yes, yes. That’s it. Yeah. No, they are not. They are independent, right? No. They are not independent. Right? What did you say. Yes or no. No. You said yes they are independent, or yes they are not?

STUDENT: Independent.

SANCHEZ: Yes. They are independent. No. Yes. They are not independent, okay? They are not independent. I mean, sorry. Yes. They are independent.

Fuck this class.

STATS 102B
COVID-19 This review was submitted during the COVID-19 pandemic. Your experience may vary.
Quarter: Spring 2020
April 13, 2020

I don't say this lightly. She is by far the worst teacher of knowledge I've ever witnessed in my entire life, perhaps throughout the entire existence of human history. She is, without a doubt, 95% of the reason for my crippling depression. The other 5% is the death of my dog. You heard it right folks, she makes me 19 times more depressed than the death of my dog. Her homework ruins my days, make me fall into an existential crisis and makes me cry. I truly cannot tell you this feeling of dread I experience thinking about her class, it's a feeling I hope none of you reading this will ever need to experience.

STATS 100A
Quarter: Winter 2020
March 22, 2020

Professor Sanchez is infamous among the stats professor and I took her class knowing it was going to be a very rough experience. My expectation for her was low as yours will probably be, so surprisingly she did exceed my expectations. She is not as bad as other reviews describe as long as you follow her "rules".

Some things to note:
1) She takes attendance every single class. Sometimes twice every class! Sometimes it's on a sign in sheet, sometimes she roll calls, sometimes she tells you to turn in a in class exercise, sometimes she calls on random student's name to answer a question, sometimes it's all of the above.
2) There are a lot of in class participation points throughout the quarter based on the correctness of your answer and you will most likely not be given much time for those. However she is nice enough to let you drop the lowest two.
3) She assigns official homework once every two weeks. BUT, there is often smaller, shorter take home exercises that she will assign in class(and she may or may not post on CCLE about it). So pay attention in class!!
4) There are two quizzes in addition to one midterm and one final. She takes these assessments very seriously and will write you many many many bullet points on rules to follow. FOLLOW THEM! DO NOT OPEN YOUR BACKPACK WHEN YOU ARRIVE IN THE EXAMINATION ROOM. One time she was very annoyed at a particular student who looked through his backpack inside the classroom before she handed out the assessment. She yelled at him in front of the whole class and order him to sit at the very front.
5) Homework needs to be turned in within 10 minutes of starting class or else she will begin to deduct points. Try to turn it in BEFORE CLASS BEGINS, or else your P(getting yelled at ^ humiliated) = 1.

Despite my comments above, as long as you follow her rules and pay attention in class, have a decent TA, attend office hours, you will do just fine get at least a B+. She gets through a lot of material and you will feel like you've mastered a lot of material after her class. You learn a lot, more than other more "easy" stats 100a professors. And a bonus, she is quite entertaining, the way she talks, her sarcasm, and her occasional analogy of probability and life/death is quite accurate. She is very intimidating, but deep down, I believe Juana truly cares for her students.

Shout out to Lenny for being an amazing TA!

STATS 100A
Quarter: Winter 2020
March 26, 2020

Stats 100A is not supposed to be that hard a class. Content-wise it's not the worst, but Professor sanchez makes it way harder than it needs to be. She grades on an absolute scale where an A is 95+ and the range for B+ is 88-89 but B is 80-87. She overloads us with work, there is always lengthy homework, participation quizzes or random participation assignments due. She basically had 3 midterms, although she calls 2 of them "formal quizzes" and even though they're easy on content, it's IMPOSSIBLE to finish them comfortably in time. Lengthy computations make it impossible to score well in these exams, and a couple points here and there can get you down by 3 grades. She's also extremely intimidating, and unnecessarily condescending. I respect that she wanted us to be thorough with the material, but she treats us as if Stats 100A is our only, and hardest class, and gives too much work. I took this class thinking how hard can she make 100A, but trust me, avoid it if you can.

STATS 100A
Quarter: Winter 2020
March 22, 2020

She's not as bad as people say! If you follow instructions and don't mess around, you'll be fine in this class.

I think a lot of the bad reviews just come from miscommunication/misunderstandings. There's definitely somewhat of a language/cultural gap between Prof Sanchez and her students, but if you treat her with respect, she will do the same. She is honestly very nice towards her students and cares about our success.

I emailed her multiple times and she was always willing to help and added words of encouragement and niceties in each of them that a lot of the reviewers below won't tell you about.

She is somewhat disorganized and goes extremely fast in lecture! Pay attention or get left behind (I often found myself in this situation multiple times). The homework is easy and can be finished in a couple hours at most, but her quizzes and tests often are too long to finish (in my opinion) without rushing super fast. Practice proofs! That's what separated me from getting a way better grade in this class.

The book isn't really necessary. You need it a few times in the class when her homework questions (maybe one or two per fifteen question assignment) ask you to go to the book for reference, but it's not worth 60-70 bucks, just go look at it rq in the Science and Engineering Library.

If anything, don't procrastinate taking your Stats 100a class because Sanchez is the only professor taking it (i almost did because of her reviews), just push through and you'll be fine.

STATS 100A
Quarter: Winter 2020
March 27, 2020

Take Sanchez If:
-You learn better with structure and someone constantly keeping you in check
-Dont mind going to class
-Learn by practicing
-Want to learn the basics of probability really well

Don't Take Sanchez If:
-You prefer to cram the night before tests

Her class isn't hard, you are just going to have to do a lot of problems. The upside is the night before each test you will barely have to study because Sanchez already made you sure you've done each problem literally 10 times.

1 of 19

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