I ACTUALLY took History 3A with professor Alexander, and i really don't think he deserves that low of a rating.
But I'll be honest...

-His lectures are really boring and as other people have said, his power points are useless... BUT he also posts the outline of the actual notes he covers in lecture so even if you don't take notes, he provides them for you. He also made attendance mandatory since he had the TA's check off their students but some people would just sign in and leave. Professor Alexander would also stutter a lot but it didn't bother be much. He is very repetitive and basically takes an hour and 15 minutes to cover what he could have covered in 45 tops.
-This class was made up of a midterm, final, a paper, and your discussion grade.
If you keep up with at least most of the readings, pay attention in discussion and study his outline notes you should be able to pass with an A.
-The TA's are ultimately the one's who give you your grade so participating and going to office hours will definitely make your discussion section grade! So maintain a good relationship with them.
-Lastly I personally thought this was a really interesting class and even though I didn't learn it from the professor, he definitely provides you with the readings and notes to do well in the class

Professor Alexander was nice in the sense that workload was not heavy and exams were not ver hard. Actually, it's probably quite easy compared to other history classes. If you are here for a good grade, it's definitely there if you do all the required work (and there weren't so many). In this way, the professor is pretty concerned about the students. One thing that could've been better is the lecture material. There are only a few pictures in every lecture without any notes on the slides, and the professor doesn't write notes on the board either. Everything I learned through this course is from Wikipedia and the textbook. The TAs were very helpful and nice. Overall, I would recommend this class as a GE.

He's a great professor. Exactly what I expect for a college environment. His lectures are informative and he goes over key points more than once, so taking notes for his class is a good experience. I really enjoy him and wish I would have taken more classes with him before my senior year. I haven't personally interacted with him but he absolutely is nice and will help you if you ask. 180A is so interesting I have actually done all the readings for the class! He deserves a much higher rating. Very solid class and professor.

Alexander is not a fun teacher. He clearly does not prepare for his lectures and often stalls to find the next thing to say. However, his class is easy to understand and pass. He does not require much work, but attending the classes is counted toward the final grade. The subject itself is interesting but is a misnomer. The course is actually about the history of the philosophy of knowledge. Take this course for an easy A.

The exams and midterms were fair as it only encompassed what you have learned in class. The material of the class were quite interesting but I always find myself sleeping through the lectures. As long as you do all the response papers and the weekly readings you will get an A.

WORST PROFESSOR IN UCLA. Amir Alexander even puts himself to sleep during his lectures. The course material is already dry as it is, yet he somehow manages to make it a torturous task to sit through lecture (which is mandatory). He is extremely unpleasant and unhelpful. The course material is so irrelevant and boring. Lecture has no similarity with what you are tested on. His slides are non-existent. So much work for what is supposed to be an “easy GE.” Don’t be fooled! History 3A with Amir Alexander may possibly be the worst decision you make in your life. Consider yourself warned.

A laid back professor. He treats his students like they are in college, not like high schoolers, which I appreciated. His tests were interesting, he adds terms you choose from to add within the paper, which helps in giving clues if you happen to forget important pieces of what was taught. The readings were very interesting and every week I enjoyed what I was to learn next. I went to his office hours and he was supportive and willing to talk about school, life, career goals, etc. I suggest taking him, plus his lectures are podcasted but do not miss too many classes since this accounts for 10% participation grade.

Excellent professor and class! I'll admit a few sections were a bit tedious and boring to get through but overall it was very interesting and was a perfect GE for any STEM major as it involves out field and is not heavy on writing

This class is one of the most difficultly easy classes I've ever taken in my life. Grading depends ENTIRELY on your TA so it's really luck of the draw if you get one who is gracious or not. The grading system is based on watching two movies and writing short reports (2.5% each), going to the Getty and writing a report (5% and you have to figure out how to get there, taking pop quizzes (20%), attendance and participation (25%), and then writing a midterm and final paper (15% and 30% respectively). The attendance is this classes saving grace as the papers can be difficult and the quizzes are hard to prepare for. Basically, you spend like $150 between the books and course reader and have to read like all of everything to prepare. Randomly, the professors give a pop quiz during lecture and you have to recall the author, title, and publication date of a given paragraph from one of the readings and, since each week's readings are based on the same topic, it's quite difficult to recall which paragraph is from which piece. If you abuse the life office hours (of your TA because they're who matter for your grade), you should do well. As few students tend to take this cluster, you may even get lucky and have your TA read and edit your paper long before it's due to ensure that you get an A. Side note: Sissa and Stahulyak (the professors for the Fall quarter) are very nice individuals but are often hard to follow in lecture. The slides are tiny and are usually either A) direct quotes from the reading that they read directly off of or B) totally unrelated to the readings and thus unrelated to any quizzes or papers that you may write. This was cool for a while, but the novelty of learning fun facts wore off when the lack of coverage of actual course material reflected itself in my grades for quizzes. Do the readings and rely on your TA and you should do well.

Overall, the class was easy. As someone who isn't a fan of history or science, I didn't really find myself interested in his lectures, but his lectures were really clear. Definitely take notes with your computer as he is speaking, because there's a lot write down. However, if you do the readings, you'll be perfectly fine. For me, I found the readings boring because I didn't like the primary source language, so they took me a long time to do, but I guess that made it easier for me to remember the material.
The midterm and final both consisted of vocab and essay(s). The vocab was easy enough if you took good notes during his lecture. He gives you the vocab list a week before the midterm/final, and he also holds a review session where you ask him questions, so definitely make sure you go to that. If the vocab word is a specific event or something that happened at a specific point, try to remember the date or at least the decade. The essays were really easy as long as you did the readings, understand the vocab, and answer the weekly questions.
This class, although not the most riveting in my opinion, was easy and you can definitely get an A if you put in the work. The professor is super nice, too.