You are looking at Summer Session A 2026. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 246 sections for Summer Session A 2026, read about 1 month ago. Separately, it has finished 400 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 30BL / DEIFEL, NICHOLAS

Organic Chemistry Laboratory I

How CHEM 30BL grades when DEIFEL, NICHOLAS teaches it. CHEM 30BL, every instructor DEIFEL, NICHOLAS, every course

Grades, this instructor

3.81adjusted historical GPA, this instructor

442 letter grades across 6 terms, Winter 2024 to Fall 2025. The course pools every instructor at 3.69 over 1,001 letter grades.

Raw average: 3.82; The mean of this instructor's recorded letter grades in this course.
In the A range: 91.4%; A+, A and A minus out of 442 letter grades.
D, F or W: 1.1%; D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
Taken pass/no pass: 0.5%; 2 of 2 pass/no-pass outcomes passed. Share is of letter, P/NP and S/U outcomes.

Some of these grades are shared. 58 letter grades in 1 section also count under CASAS, ANNEKA MILLER. The source does not split grades between co-teachers. Do not add instructor totals together.

Grade distribution

A+23 / 5.2%
A285 / 64.5%
A-96 / 21.7%
B+18 / 4.1%
B9 / 2%
B-2 / 0.5%
C+2 / 0.5%
C1 / 0.2%
C-1 / 0.2%
D+0 / 0%
D1 / 0.2%
D-0 / 0%
F4 / 0.9%
I4 of 448
P2 of 448

Percentages are of the 442 letter grades. Grey bars are non-letter outcomes: passes (P) 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, 3.69.

One recorded instructorCo-taught, grades shared

Winter 20243.9184 letter grades.

Spring 20243.8188 letter grades.

Fall 20243.6956 letter grades.

Winter 20253.8278 letter grades.

Spring 20253.7478 letter grades.

Fall 20253.9458 letter grades; 58 shared with CASAS, ANNEKA MILLER.

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 Summer Session A 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 30BL 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 DEIFEL, NICHOLAS in CHEM 30BL