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 about 2 months ago. Separately, it has finished 527 of the 3,617 courses on its current checking list for this term. Future-term coverage is incomplete, so a course with nothing here may simply not have been reached yet. Back to Fall 2026

MATH 31A / ZHANG, EDITH

Differential and Integral Calculus

How MATH 31A grades when ZHANG, EDITH teaches it. MATH 31A, every instructor ZHANG, EDITH, every course

Grades, this instructor

3.21adjusted historical GPA, this instructor

328 letter grades across 1 term, Fall 2025. The course pools every instructor at 3.23 over 4,717 letter grades.

Raw average: 3.21; The mean of this instructor's recorded letter grades in this course.
In the A range: 53%; A+, A and A minus out of 328 letter grades.
D, F or W: 8.8%; D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
Taken pass/no pass: 0%; No pass/no-pass outcomes are recorded.

Grade distribution

A+0 / 0%
A139 / 42.4%
A-35 / 10.7%
B+38 / 11.6%
B39 / 11.9%
B-16 / 4.9%
C+15 / 4.6%
C9 / 2.7%
C-10 / 3%
D+4 / 1.2%
D4 / 1.2%
D-3 / 0.9%
F16 / 4.9%
DR2 of 330

Percentages are of the 328 letter grades. Grey bars are non-letter outcomes: withdrawals (DR). They are excluded from GPA.

Term by term

Raw averages for the terms in this record. A missing term does not establish that this instructor did not teach it. Summer sessions are included when present.

Dashed line: course average across all instructors, 3.23.

One recorded instructorCo-taught, grades shared

Fall 20253.21328 letter grades.

Is one term a guide to the next?

Across the measured corpus, the same course and instructor's term averages were strongly correlated, including terms several years apart. That is why the adjustment does not weight recent terms more heavily. This is a dataset-wide pattern, not a promise about this instructor's next class.

Teaching it in Fall 2025

This term has ended. Section counts below are historical readings, not current availability.

Section

Lec 2

MWF 10:00am-10:50am

Seats

Open

5 seats left.

207 of 210 enrolled

Seat risk

An estimate, separate from the seat reading.

not checked yet

Read August 25, 2026 at 3:08 AM PDT. Seat counts can change before you enroll.

Every linked section (6)

Dis 2AT 10:00am-10:50amopen: 2 seats left.

Dis 2BR 10:00am-10:50amclosed: 35 of 35 · 1 over enrolled

Dis 2CT 10:00am-10:50amclosed: 35 of 35 · 1 over enrolled

Dis 2DR 10:00am-10:50amopen: 1 seat left.

Dis 2ET 10:00am-10:50amclosed: 35 of 35 enrolled

Dis 2FR 10:00am-10:50amopen: 2 seats left.

Section

Lec 4

MWF 4:00pm-4:50pm

Seats

Open

87 seats left.

123 of 210 enrolled

Seat risk

An estimate, separate from the seat reading.

not checked yet

Read August 25, 2026 at 3:08 AM PDT. Seat counts can change before you enroll.

Every linked section (6)

Dis 4AT 4:00pm-4:50pmopen: 7 seats left.

Dis 4BR 4:00pm-4:50pmopen: 6 seats left.

Dis 4CT 4:00pm-4:50pmopen: 7 seats left.

Dis 4DR 4:00pm-4:50pmopen: 28 seats left.

Dis 4ET 4:00pm-4:50pmopen: 20 seats left.

Dis 4FR 4:00pm-4:50pmopen: 19 seats left.

Every MATH 31A section and instructor

Reading these figures

Raw is the mean of the recorded letter grades. The adjusted historical GPA pulls an instructor's average toward the course's adjusted average, which itself uses a department prior. It is a comparison aid, not a calibrated prediction or a student rating. Small samples carry more uncertainty. All recorded instructor roles are included, and a section is counted only once for this instructor. Grades cannot establish workload or explain why outcomes differed.

What students say

dibs measures outcomes. For students' experiences of the class, BruinWalk has reviews.

No verified BruinWalk review page is linked to this instructor and course yet.