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You are looking at Fall 2025. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 1,964 sections for Fall 2025, read 8 days ago. Separately, it has finished 527 of the 3,473 courses on its own sweep list for this term. Terms nobody is enrolling in are swept one a night in rotation, so a course with nothing here may simply not have been reached yet. Back to Fall 2026

MATH 31B

Integration and Infinite Series

4 units

Lecture and discussion.

Fall 2025: 3 lectures and 18 discussions. 2 lectures and 10 discussions are open. The oldest of these readings was 8 days ago.

Grades

3.08

Average grade awarded in MATH 31B. Not a rating: this is what the grades were.

In the A range

47%

of the 6,721 letter grades

D, F or W

8.3%

of every letter grade awarded, plus withdrawals

Taken pass/no pass

<1%

39% of those passed

The registrar's own records: 6,721 grades over 15 terms, Fall 2021 to Fall 2025, summer excluded. Every instructor is pooled here. The table below splits them, and term averages across those 15 terms ran 2.81 to 3.77.

  • A+ 306 · 4.6%
  • A 2,038 · 30.3%
  • A- 784 · 11.7%
  • B+ 681 · 10.1%
  • B 835 · 12.4%
  • B- 386 · 5.7%
  • C+ 389 · 5.8%
  • C 475 · 7.1%
  • C- 277 · 4.1%
  • D+ 110 · 1.6%
  • D 108 · 1.6%
  • D- 67 · 1.0%
  • F 265 · 3.9%
  • P 13 of 6,805
  • NP 20 of 6,805
  • I 40 of 6,805
  • DR 9 of 6,805
  • R 2 of 6,805

Percentages are of the 6,721 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), incompletes (I), withdrawals (DR), and repeats (R). They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication. Withdrawals are the exception to "excluded": DR is not scored, but it IS counted in the D, F or W figure above, which is reported over the letter grades plus the withdrawals. Pass/no pass and S/U outcomes are outside that figure on both sides.

By instructor

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor Predicted GPA Raw n Terms A range Workload Fall 2025
SANCHEZ OCAL, PABLO reviews ↗ 3.10 3.10 751 3 41% - not teaching it
XIONG, HAOREN reviews ↗ 2.91 2.90 674 2 35% - not teaching it
ARANT, TYLER JAMES reviews ↗ 2.80 2.80 601 3 39% very light Closed
GREENE, MARY PAIGE reviews ↗ 3.56 3.57 551 4 74% - not teaching it
JOHNSON, CASEY LYNN reviews ↗ 2.62 2.60 450 3 36% - Open, 4 seats left
GANNON, KYLE ANDREW COX reviews ↗ 3.69 3.72 437 1 78% - not teaching it
BEERS, DAVID reviews ↗ 3.29 3.30 426 2 57% very light not teaching it
DING, CHANGYING reviews ↗ 3.15 3.15 417 2 49% - not teaching it
LI, LINFENG reviews ↗ 3.19 3.20 413 2 43% - not teaching it
FLYNN, PATRICK reviews ↗ 3.35 3.37 212 1 65% - not teaching it
KERANEN, JUKKA PETRI MIKAEL reviews ↗ 2.96 2.95 209 1 40% - not teaching it
BADREDDINE, RANA reviews ↗ 3.07 3.07 206 1 42% - not teaching it
MIN, HYUNKI reviews ↗ 3.11 3.11 203 1 44% - not teaching it
ZHANG, ZHAOYU reviews ↗ 2.76 2.73 203 1 29% - not teaching it
GU, HAOTIAN reviews ↗ 2.92 2.91 203 1 43% - not teaching it
DEMIROGLU, YESIM reviews ↗ 2.94 2.93 200 1 36% - not teaching it
SCAVIA, FEDERICO reviews ↗ 3.16 3.17 197 1 49% - not teaching it
MARKS, ANDREW SCOTT reviews ↗ 2.65 2.61 182 1 32% - not teaching it
GREENE, ROBERT E reviews ↗ 2.85 2.82 150 1 28% - not teaching it
CONLEY, WILLIAM JOSEPH reviews ↗ 2.19 1.78 36 1 11% - not teaching it

“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.

dibs measures outcomes: grades, seats, how fast a class fills. For what a class is like to sit in, BruinWalk has the reviews.

Reviews for MATH 31B

What comes first

dibs has not read a class page for MATH 31B, so it cannot say what comes before it.

Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.

In Falls

Ran in 5 of the last 5 Falls.

From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.

From the registrar's catalog

dibs has not read the registrar's description for this course. It reads them for general education courses only, so this says nothing about the course. Any section below links out to the registrar, where the catalog text is, and that text is also where a prerequisite the structured list does not carry would be written.

Sections in Fall 2025

You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.

Seat counts as of : the oldest of these 21 readings. That term is over, so nothing has moved since.

Final enrollment, averaged across each term's sections: between 144 and 281 a term over 12 terms, summer excluded, most recently 208 in Fall 2025. That is the shape across years, not this term, which is above.

Seats over time in Fall 2025

How each lecture has filled since dibs first saw it. This course runs 3 lectures; the legend under the chart picks one.

Lec 1 · Johnson, C.L. · 207 of 210 enrolled

Unchanged over 3 minutes

211206
25 Aug 03:05capacity 21025 Aug 03:08

Lec 2 · Arant, T.J. · 210 of 210 · 4 over enrolled

Unchanged over 3 minutes

211209
25 Aug 03:05capacity 21025 Aug 03:08

Lec 3 · Gu, H. · 203 of 210 enrolled

Unchanged over 3 minutes

211202
25 Aug 03:05capacity 21025 Aug 03:08