You are looking at Winter 2026. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 1,472 sections for Winter 2026, read about 2 months ago. Separately, it has finished 195 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

CHEM 247 / TANG, YI

Organic Colloquium

How CHEM 247 grades when TANG, YI teaches it. CHEM 247, every instructor TANG, YI, every course

Grades, this instructor

3.94adjusted historical GPA, this instructor

142 letter grades across 3 terms, Fall 2023 to Fall 2025. The course pools every instructor at 3.92 over 518 letter grades.

Raw average: 3.94; The mean of this instructor's recorded letter grades in this course.
In the A range: 94.4%; A+, A and A minus out of 142 letter grades.
D, F or W: 0%; 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.

Some of these grades are shared. 45 letter grades in 1 section also count under GARG, NEIL KAMAL. The source does not split grades between co-teachers. Do not add instructor totals together.

Grade distribution

A+0 / 0%
A134 / 94.4%
A-0 / 0%
B+0 / 0%
B8 / 5.6%
B-0 / 0%
C+0 / 0%
C0 / 0%
C-0 / 0%
D+0 / 0%
D0 / 0%
D-0 / 0%
F0 / 0%
S195 of 337

Percentages are of the 142 letter grades. Grey bars are non-letter outcomes: satisfactory (S). 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, 3.92.

One recorded instructorCo-taught, grades shared

Fall 20233.8245 letter grades; 45 shared with GARG, NEIL KAMAL.

Fall 20244.0057 letter grades.

Fall 20254.0040 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 Winter 2026

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 CHEM 247 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 TANG, YI in CHEM 247