MATH 135
Ordinary Differential Equations
Lecture and discussion. The registrar has published a final exam time.
Fall 2026: 2 lectures and 4 discussions. 1 lecture and 1 discussion are open. The oldest of these readings was 5 hours ago.
Grades
3.10
Average grade awarded in MATH 135. Not a student rating: this is what the grades were.
In the A range
50%
of the 1,152 letter grades
D, F or W
9.5%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
1%
7 of 13 students passed
The registrar's own records: 1,152 grades over 16 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
3 of those terms are summer sessions, and summer sessions are counted here.
The table below splits them, and term averages across those 16 terms ran 2.72 to 3.58.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 79 · 6.9%
- A 344 · 29.9%
- A- 153 · 13.3%
- B+ 116 · 10.1%
- B 109 · 9.5%
- B- 76 · 6.6%
- C+ 52 · 4.5%
- C 64 · 5.6%
- C- 49 · 4.3%
- D+ 22 · 1.9%
- D 31 · 2.7%
- D- 19 · 1.6%
- F 38 · 3.3%
- P 7 of 1,171
- NP 6 of 1,171
- I 6 of 1,171
Percentages are of the 1,152 letter grades. Grey bars are non-letter outcomes: passes (P), no-passes (NP), and incompletes (I).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Fall 2026 |
|---|---|---|---|---|---|---|---|
| JOHNSON, CASEY LYNN reviews ↗ | 2.96 | 2.95 | 244 | 6 | 45% | average | not teaching it |
| FLYNN, PATRICK reviews ↗ | 3.55 | 3.60 | 137 | 3 | 76% | light | not teaching it |
| HESTER, ERIC WILLIAM reviews ↗ | 2.95 | 2.93 | 134 | 5 | 40% | light | not teaching it |
| ARANT, TYLER JAMES reviews ↗ | 3.41 | 3.46 | 112 | 2 | 69% | - | not teaching it |
| MARSDEN, KATIE reviews ↗ | 2.89 | 2.85 | 103 | 2 | 43% | - | not teaching it |
| ZHOU, MO reviews ↗ | 3.13 | 3.13 | 100 | 2 | 43% | very light | not teaching it |
| BISWAL, SHIBA reviews ↗ | 2.66 | 2.53 | 60 | 2 | 28% | average | not teaching it |
| KERANEN, JUKKA PETRI MIKAEL reviews ↗ | 3.08 | 3.07 | 44 | 1 | 55% | - | not teaching it |
| WU, JEREMY SHEUNG HIM reviews ↗ | 3.03 | 3.00 | 38 | 1 | 45% | - | not teaching it |
| CARNEY, SEAN PATRICK reviews ↗ | 3.40 | 3.53 | 38 | 1 | 63% | - | not teaching it |
| ACEVES SANCHEZ, PEDRO reviews ↗ | 3.21 | 3.27 | 35 | 1 | 49% | - | not teaching it |
| OSHER, STANLEY J reviews ↗ | 3.20 | 3.24 | 34 | 1 | 50% | - | not teaching it |
| KASSAB, LARA reviews ↗ | 2.95 | 2.86 | 31 | 1 | 42% | average | not teaching it |
| SONTHALIA, RISHI SAURABH reviews ↗ | 3.15 | 3.18 | 23 | 1 | 35% | - | not teaching it |
| MUNOZ, SEBASTIAN reviews ↗ | 2.97 | 2.84 | 19 · | 1 | 42% | light | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.
What the work looks like
- Exams mentioned, no number given, said by 15 reviewers
- Quizzes mentioned, no number given, said by 1 reviewer
- Problem sets mentioned, no number given, said by 10 reviewers
Read from 68 reviews 27 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.
What comes first
The chain dibs can see is 4 courses long before MATH 135. This is a floor, not a deadline: dibs has not read a class page for MATH 3B, so the real chain can only be longer than this, never shorter.
Counted in courses rather than quarters: dibs does not know which of them a department lets you take together.
In Falls
Ran in 5 of the last 5 Falls.
From the terms dibs holds, which start in Fall 2021 and exclude summer. A department can run a course in a quarter it never has before.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Requisites: courses 33A, 33B. Selected topics in differential equations. Laplace transforms, existence and uniqueness theorems, Fourier series, separation of variable solutions to partial differential equations, Sturm/Liouville theory, calculus of variations, two-point boundary value problems, Green’s functions. P/NP or letter grading.
Sections in Fall 2026
You enroll in the discussion, not the lecture, so a discussion's status is the one that decides whether you get in. A lecture can read open while every discussion under it is full.
Seat counts as of : the oldest of these 6 readings. Seat readings are snapshots, not live availability. Their timestamps show when dibs last checked.
-
Lec 1 MWF 11:00am-11:50amOpen
Zuniga Valencia, J
3.11predicted, all instructors · 1,152 grades1 seat left. 79 of 80 enrolled high risk
2 discussions, 1 open: Dis 1B, R 11:00am-11:50am.
-
Lec 2 MWF 1:00pm-1:50pmClosed
Zuniga Valencia, J
3.11predicted, all instructors · 1,152 grades80 of 80 enrolled high risk
2 discussions, none open. Its waitlist is full too, at 6 of 6.
Final enrollment, averaged across each term's sections: between 30 and 69 a term over 13 terms, summer excluded, most recently 35 in Fall 2025. That is the shape across years, not this term, which is above.
From the people who took it
Student reviews
What taking MATH 135 was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
No student reviews are available to read on dibs for this course yet. Took it? Tell the next person what helped, what was hard, and how you spent your time.
Looking for more perspectives?
External reviews are separate and do not count toward the dibs rating.
Seats over time in Fall 2026
How each lecture has filled since dibs first saw it. This course runs 2 lectures; the legend under the chart picks one.
A dot is a reading where something moved: the seat count, the status, or the waitlist.
What a flat run means, and where a line starts
Flat between dots means it did not drift, it held and then jumped, and a line starts when dibs first saw that lecture rather than reaching back before it existed. A lecture that has never moved draws a flat line across the whole window, and one with two or three readings draws a line joining them, which is too few to read a trend from.
Lec 1 · Zuniga Valencia, J · 79 of 80 enrolled
Freed 1 seat over about 2 months
Lec 2 · Zuniga Valencia, J · 80 of 80 enrolled
Same seat count, but the status moved and came back, the waitlist moved and came back, and the seat count moved and came back over about 2 months
How readings and alerts work
A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.
Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.
The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.