You are looking at Summer Session C 2026. That term is over, so these are last term's numbers rather than seats you can take. dibs holds 3 sections for Summer Session C 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

ECON 137 / OSEI TWUMASI, OLIVIA IRENA

Introduction to Urban and Regional Economics

How ECON 137 grades when OSEI TWUMASI, OLIVIA IRENA teaches it. ECON 137, every instructor OSEI TWUMASI, OLIVIA IRENA, every course

Grades, this instructor

3.31adjusted historical GPA, this instructor

1,004 letter grades across 7 terms, Fall 2021 to Fall 2025. The course pools every instructor at 3.31 over 1,004 letter grades.

Raw average: 3.31; The mean of this instructor's recorded letter grades in this course.
In the A range: 48.6%; A+, A and A minus out of 1004 letter grades.
D, F or W: 1.4%; D-range and F grades plus withdrawals, divided by letter grades plus withdrawals.
Taken pass/no pass: 0.8%; 5 of 8 pass/no-pass outcomes passed. Share is of letter, P/NP and S/U outcomes.

Grade distribution

A+79 / 7.9%
A223 / 22.2%
A-186 / 18.5%
B+147 / 14.6%
B154 / 15.3%
B-89 / 8.9%
C+42 / 4.2%
C54 / 5.4%
C-16 / 1.6%
D+3 / 0.3%
D4 / 0.4%
D-3 / 0.3%
F4 / 0.4%
I6 of 1,018
NP3 of 1,018
P5 of 1,018

Percentages are of the 1,004 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, 3.31.

One recorded instructorCo-taught, grades shared

Fall 20213.57175 letter grades.

Fall 20223.36135 letter grades.

Fall 20233.43132 letter grades.

Winter 20243.5488 letter grades.

Fall 20243.24136 letter grades.

Winter 20253.29141 letter grades.

Fall 20252.93197 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 Summer Session C 2026

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

No sections are confirmed under this instructor's record in the course listing dibs read for Summer Session C 2026.

Every ECON 137 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 OSEI TWUMASI, OLIVIA IRENA in ECON 137