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

ETHNMUS M50B / BOLIN, MARC TIMOTHY

Jazz in American Culture: 1940s to Present

How ETHNMUS M50B grades when BOLIN, MARC TIMOTHY teaches it. ETHNMUS M50B, every instructor BOLIN, MARC TIMOTHY, every course

Grades, this instructor

3.83adjusted historical GPA, this instructor

570 letter grades across 3 terms, Winter 2022 to Winter 2025. The course pools every instructor at 3.83 over 570 letter grades.

Raw average: 3.83; The mean of this instructor's recorded letter grades in this course.
In the A range: 89.6%; A+, A and A minus out of 570 letter grades.
D, F or W: 1.8%; D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
Taken pass/no pass: 2.4%; 13 of 14 pass/no-pass outcomes passed. Share is of letter, P/NP and S/U outcomes.

Grade distribution

A+318 / 55.8%
A168 / 29.5%
A-25 / 4.4%
B+17 / 3%
B18 / 3.2%
B-5 / 0.9%
C+4 / 0.7%
C4 / 0.7%
C-1 / 0.2%
D+1 / 0.2%
D0 / 0%
D-1 / 0.2%
F8 / 1.4%
I3 of 587
NP1 of 587
P13 of 587

Percentages are of the 570 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), and incompletes (I). 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, 3.83.

One recorded instructorCo-taught, grades shared

Winter 20223.85159 letter grades.

Winter 20243.83201 letter grades.

Winter 20253.80210 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.

No confirmed sections are available here. The selected term may not have been fully read.

Every ETHNMUS M50B 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.

Reviews for BOLIN, MARC TIMOTHY in ETHNMUS M50B