Seats
Closed160 of 160 · 10 over enrolled
Seat risk
high riskAn estimate, separate from the seat reading.
Read October 16, 2026 at 4:42 PM PDT. Seat counts can change before you enroll.
MATH 131A / XU, PETER
Analysis
How MATH 131A grades when XU, PETER teaches it. MATH 131A, every instructor XU, PETER, every course
Grades, this instructor
2.80adjusted historical GPA, this instructor
217 letter grades across 6 terms, Fall 2023 to Fall 2025. The course pools every instructor at 2.96 over 2,121 letter grades.
- Raw average
- 2.79
- The mean of this instructor's recorded letter grades in this course.
- In the A range
- 29%
- A+, A and A minus out of 217 letter grades.
- D, F or W
- 9.2%
- D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
- Taken pass/no pass
- 1.4%
- 2 of 3 pass/no-pass outcomes passed. Share is of letter, P/NP and S/U outcomes.
Grade distribution
- A+14 / 6.5%
- A34 / 15.7%
- A-15 / 6.9%
- B+26 / 12%
- B33 / 15.2%
- B-21 / 9.7%
- C+19 / 8.8%
- C18 / 8.3%
- C-17 / 7.8%
- D+0 / 0%
- D6 / 2.8%
- D-2 / 0.9%
- F12 / 5.5%
- NP1 of 220
- P2 of 220
Percentages are of the 217 letter grades. Grey bars are non-letter outcomes: passes (P) and no-passes (NP). 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, 2.96.
One recorded instructorCo-taught, grades shared
Fall 20232.4737 letter grades.
Winter 20242.8130 letter grades.
Spring 20242.4435 letter grades.
Fall 20243.0336 letter grades.
Winter 20252.9341 letter grades.
Fall 20253.0338 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 2026
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.
Reviews for XU, PETER in MATH 131A