Linfeng Li
Department of Mathematics
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4.0
Overall Rating
Based on 4 Users
Easiness 4.0 / 5 How easy the class is, 1 being extremely difficult and 5 being easy peasy.
Clarity 5.0 / 5 How clear the class is, 1 being extremely unclear and 5 being very clear.
Workload 4.0 / 5 How much workload the class is, 1 being extremely heavy and 5 being extremely light.
Helpfulness 4.0 / 5 How helpful the class is, 1 being not helpful at all and 5 being extremely helpful.

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GRADE DISTRIBUTIONS
56.6%
47.2%
37.7%
28.3%
18.9%
9.4%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

62.1%
51.7%
41.4%
31.0%
20.7%
10.3%
0.0%
A+
A
A-
B+
B
B-
C+
C
C-
D+
D
D-
F

Grade distributions are collected using data from the UCLA Registrar’s Office.

ENROLLMENT PROGRESS
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Reviews (4)

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Quarter: Spring 2026
Grade: I
Verified Reviewer This user is a verified UCLA student/alum.
July 28, 2026

I will preface by saying he is a VERY clear lecturer, genuinely the only lectures I have ever been to that I felt I understood in real time.

BUT: The exams were disproportionately difficult compared to the homework and the examples given in class. The first exam was incredibly difficult, the average was around 50-60%, and no one got a 100%. He even told us MOST of the class left a question at the end fully blank. The second exam was easier in terms of the problems, but IT WAS SIX (AS IN 1 2 3 4 5 6) MULTIPART (A, B, C , D, AND EVEN E SOMETIMES), LONG QUESTIONS IN 50 MINUTES, WITH INCREDIBLY LONG AND TEDIOUS ARITHMETIC. NOT A SINGLE PERSON FINISHED IN TIME.

This class genuinely gave me trust issues when it comes to exams. Ended up dropping it week 9. 32A is easy in terms of content, but this professor wanted to lower his average and made the exams insanely difficult and borderline unfair. It felt impossible to succeed in this class, and I felt the professor was aware of that, but did nothing to help anyone succeed.

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Quarter: Winter 2026
Grade: A
Verified Reviewer This user is a verified UCLA student/alum.
April 10, 2026

goat professor. easiest final ever. notes are extremely organized and closely follow the textbook. allows cheat sheet on exams. he explicitly states that he will make the next exam easier if the previous one was too hard. he has an accent but imo manageable

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Quarter: Winter 2026
Grade: A
Verified Reviewer This user is a verified UCLA student/alum.
April 7, 2026

Just take him. Super chill guy and usually pretty funny, especially for such a large lecture. Notes are available and he records lectures. Sometimes, his accent is hard to understand, but he is very accommodating and hosts so many office hours. He's also really available by email where he is very clear.

The math department screwed his class over by limiting the number of As he gives out, but his tests are very clear and not surprising at all, as they come with practice examples, he gives partial credit and he allows for regrade requests. Most of the questions pretty closely resemble the examples he does in class.

There's very little wasted time in class because it's fast-paced, but it's not boring. Homework was slightly more difficult, but not impossible, and each assignment was worth 10 points. 8 of those points would be for completion, and 2 would come from a random problem the TAs would grade.

Grading breakdown: 20% homework, 25% midterm 1, 25% midterm 2, 30% final OR 20% homework, 35% best of your midterms, 45% final, whichever is higher.

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Quarter: Fall 2024
Grade: A
Verified Reviewer This user is a verified UCLA student/alum.
Nov. 4, 2025

He pulled out a tree branch in class to point at the board with. 10/10 recommend

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Verified Reviewer This user is a verified UCLA student/alum.
Quarter: Spring 2026
Grade: I
July 28, 2026

I will preface by saying he is a VERY clear lecturer, genuinely the only lectures I have ever been to that I felt I understood in real time.

BUT: The exams were disproportionately difficult compared to the homework and the examples given in class. The first exam was incredibly difficult, the average was around 50-60%, and no one got a 100%. He even told us MOST of the class left a question at the end fully blank. The second exam was easier in terms of the problems, but IT WAS SIX (AS IN 1 2 3 4 5 6) MULTIPART (A, B, C , D, AND EVEN E SOMETIMES), LONG QUESTIONS IN 50 MINUTES, WITH INCREDIBLY LONG AND TEDIOUS ARITHMETIC. NOT A SINGLE PERSON FINISHED IN TIME.

This class genuinely gave me trust issues when it comes to exams. Ended up dropping it week 9. 32A is easy in terms of content, but this professor wanted to lower his average and made the exams insanely difficult and borderline unfair. It felt impossible to succeed in this class, and I felt the professor was aware of that, but did nothing to help anyone succeed.

Helpful?

0 0 Please log in to provide feedback.
Verified Reviewer This user is a verified UCLA student/alum.
Quarter: Winter 2026
Grade: A
April 10, 2026

goat professor. easiest final ever. notes are extremely organized and closely follow the textbook. allows cheat sheet on exams. he explicitly states that he will make the next exam easier if the previous one was too hard. he has an accent but imo manageable

Helpful?

0 0 Please log in to provide feedback.
Verified Reviewer This user is a verified UCLA student/alum.
Quarter: Winter 2026
Grade: A
April 7, 2026

Just take him. Super chill guy and usually pretty funny, especially for such a large lecture. Notes are available and he records lectures. Sometimes, his accent is hard to understand, but he is very accommodating and hosts so many office hours. He's also really available by email where he is very clear.

The math department screwed his class over by limiting the number of As he gives out, but his tests are very clear and not surprising at all, as they come with practice examples, he gives partial credit and he allows for regrade requests. Most of the questions pretty closely resemble the examples he does in class.

There's very little wasted time in class because it's fast-paced, but it's not boring. Homework was slightly more difficult, but not impossible, and each assignment was worth 10 points. 8 of those points would be for completion, and 2 would come from a random problem the TAs would grade.

Grading breakdown: 20% homework, 25% midterm 1, 25% midterm 2, 30% final OR 20% homework, 35% best of your midterms, 45% final, whichever is higher.

Helpful?

0 0 Please log in to provide feedback.
Verified Reviewer This user is a verified UCLA student/alum.
Quarter: Fall 2024
Grade: A
Nov. 4, 2025

He pulled out a tree branch in class to point at the board with. 10/10 recommend

Helpful?

0 0 Please log in to provide feedback.
1 of 1
4.0
Overall Rating
Based on 4 Users
Easiness 4.0 / 5 How easy the class is, 1 being extremely difficult and 5 being easy peasy.
Clarity 5.0 / 5 How clear the class is, 1 being extremely unclear and 5 being very clear.
Workload 4.0 / 5 How much workload the class is, 1 being extremely heavy and 5 being extremely light.
Helpfulness 4.0 / 5 How helpful the class is, 1 being not helpful at all and 5 being extremely helpful.

TOP TAGS

There are no relevant tags for this professor yet.

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