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You are looking at Winter 2027. Enrollment for it has not opened, so these are the registrar's early listings. dibs holds 3,430 sections for Winter 2027, read 3 days ago. Separately, it has finished 2,460 of the 3,572 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

CH ENGR 109

Numerical and Mathematical Methods in Chemical and Biological Engineering

4 units

Sections & times

Grades

3.59

Average grade awarded in CH ENGR 109. Not a student rating: this is what the grades were.

In the A range

69%

of the 380 letter grades

D, F or W

0.8%

of every letter grade awarded, plus withdrawals

Taken pass/no pass

-

the registrar has this letter grade only this term

The registrar's own records: 380 grades over 5 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.

What is inside that record

No summer session is in that record.

The table below splits them, and term averages across those 5 terms ran 3.38 to 3.76.

Historical grades for all professors, across recorded terms. The course summary above includes all professors.

  • A+ 9 · 2.4%
  • A 154 · 40.5%
  • A- 100 · 26.3%
  • B+ 49 · 12.9%
  • B 34 · 8.9%
  • B- 21 · 5.5%
  • C+ 4 · 1.1%
  • C 6 · 1.6%
  • D+ 1 · 0.3%
  • F 2 · 0.5%
  • I 1 of 381

Percentages are of the 380 letter grades. Grey bars are non-letter outcomes: 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

Predicted GPA, raw average, sample size, terms, A range and the workload reviewers reported for every instructor with a grade record in this course
Instructor Predicted GPA Raw n Terms A range Workload Winter 2027
CHRISTOFIDES, PANAGIOTIS D reviews ↗ 3.59 3.59 380 5 69% heavy 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.

Reviews for CH ENGR 109

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.

dibs has not read this course’s reviews, so it cannot say what kind of work it sets. That is dibs not having looked. It is not a course without papers or exams, and the reviews linked below are the answer until dibs catches up.

Read the source reviews

What comes first

The chain dibs can see is 1 course long before CH ENGR 109. Read from Fall 2026, because dibs has not read a class page for CH ENGR 109 in Winter 2027 and a department can change what it requires. This is a floor, not a deadline: dibs has not read a class page for C&EE M20, 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 Winters

Has not run in Winter in the 4 Winters dibs holds records for, back to Fall 2021. That is 4 years of grade records rather than the course catalog, so it says what has happened and not what the department will do next.

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, four hours; discussion, one hour; outside study, seven hours. Enforced requisite: Civil and Environmental Engineering M20 or Mechanical and Aerospace Engineering M20. Enforced corequisite: course 101A. Numerical methods for computation of solution of systems or linear and nonlinear algebraic equations, ordinary differential equations, and partial equations. Chemical and biomolecular engineering examples used throughout to illustrate application of these methods. Use of MATLAB as platform (programming environment) to write programs based on numerical methods to solve various problems arising in chemical engineering. Letter grading.

Sections in Winter 2027

Not offered in Winter 2027.

From the people who took it

Student reviews

What taking CH ENGR 109 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.

Read reviews on BruinWalk

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