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ENGR 181W · Lec 1

Critical Thinking and Writing for Chemical Engineers

Fall 2026Chang, J.P.5 units

Writing II

Needs a grade of C or better: C- does not count, and neither does a Passed grade.

Seats, time, final and grades

Seats

Closed by the department.

74 enrolled enrolled. The department published this count and no capacity, so there is no share to fill.

Meets

MW 10:00am-11:50am

Lecture only. You also attend a discussion, listed below.

Final

Tue 8 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

no grade history

No grade record for this section yet.

Read 3 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

dibs has seen this section open 6 times since 18 August. The last time was 22 September. 2 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

Watching is the one thing here that needs an account, because an alert needs somewhere to go. Everything else on this page works signed out.

Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Sophomores or Juniors or Seniors, and Undergraduate Chemical Engineering Majors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 3 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

6 discussions, none open. There is no waitlist either, so the only way in is somebody dropping the lecture.

No discussion is open. Whatever the lecture reads, there is currently nothing here to enroll in.
  • Dis 1A

    R 12:00pm-1:50pm

    Alessandro, O.

    Closed by the department.

  • Dis 1B

    R 2:00pm-3:50pm

    Vaquilar, J.

    Closed by the department.

  • Dis 1C

    R 12:00pm-1:50pm

    Russ, B.D.

    Closed by the department.

  • Dis 1D

    R 2:00pm-3:50pm

    Zhou, F.

    Closed by the department.

  • Dis 1E

    R 12:00pm-1:50pm

    No instructors

    Closed by the department.

  • Dis 1F

    R 10:00am-11:50am

    No instructors

    Closed by the department.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MW 10:00am-11:50am

Engineering VI Mong Learning Center

Grades

no grade history

More about ENGR 181W, though its grade history is empty too.

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

There are no BruinWalk reviews of this course on record as of 17 days ago, so nobody has told dibs what kind of work it sets. That is dibs holding no reviews at all, and not reviewers who wrote without mentioning the work.

Reviews for ENGR 181W Search the reviews for J.P. Chang

Will it still be here

no history chance of closing before your enrollment pass.

Seats over time

Nothing read since 1 Oct, 3 hours ago. Over about 1 month before that, same seat count, but the status went closed to closed by the department, the cap went 74 to 84, the cap stopped being published, and the seat count moved and came back.

6 times reopened
74 of 84 · no seats left in its discussions
18 Aug 21:409 Sep 20:411 Oct 19:43 · 3 hours ago
dibs read 168 of the 758 hours its hourly record covers, 22%, and did not look in 590. dibs had no hourly record before 31 Aug, which is the other 297 of 1055 plotted.74 of 84 enrolled at the newest reading, 3 hours ago, and no seats left in its discussions. Seats from 18 Aug 21:40 to 1 Oct 19:43, 74 to 74. dibs read 168 of the 758 hours its hourly record here covers, 22%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 590 hours dibs was keeping a record and did not reach this section. Nothing before 31 August at 06:00, where this section's record starts, has a read either way, which is 297 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, and that was 3 hours ago. It is where the line stops, not where the count is now.

Show the readings (36)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 19:43 74 0 closed by the department - 2 of 4
1 Oct 16:12 74 0 closed by the department - 5 of 16
1 Oct 01:32 75 0 closed by the department - 2 of 4
30 Sep 22:02 77 0 closed by the department - 3 of 8
30 Sep 15:02 78 0 closed by the department - 2 of 5
30 Sep 11:12 77 0 closed by the department - 4 of 13
29 Sep 23:42 78 0 closed by the department - 2 of 5
29 Sep 19:22 80 0 closed by the department - 3 of 8
29 Sep 12:22 78 0 closed by the department - 4 of 12
29 Sep 01:52 80 0 closed by the department - 2 of 4
28 Sep 22:22 82 0 closed by the department - 2 of 5
28 Sep 18:32 80 0 closed by the department - 2 of 4
28 Sep 15:02 81 0 closed by the department - 6 of 20
27 Sep 20:32 82 0 closed by the department - 13 of 44
26 Sep 01:52 83 0 closed by the department - 2 of 4
25 Sep 22:02 84 0 closed by the department - 10 of 34
24 Sep 13:32 84 84 closed - 14 of 50
22 Sep 12:12 83 84 open - 5 of 15
21 Sep 22:12 84 84 closed - 13 of 45
20 Sep 02:02 83 84 open - 2 of 5
19 Sep 22:32 81 84 open - 3 of 8
19 Sep 15:32 83 84 open - 26 of 90
15 Sep 22:02 81 84 open - 2 of 7
15 Sep 16:42 82 84 open - 2 of 4
15 Sep 13:32 83 84 open - 54 of 299
3 Sep 03:40 84 84 closed - 5 of 46
1 Sep 06:40 80 80 closed - 4 of 103, 78 no hourly record
28 Aug 00:40 77 77 closed - no hourly record
27 Aug 22:40 75 77 open - no hourly record
27 Aug 21:40 77 77 closed - no hourly record
27 Aug 20:40 75 77 open - no hourly record
27 Aug 19:40 77 77 closed - no hourly record
27 Aug 09:40 75 77 open - no hourly record
21 Aug 21:40 75 75 closed - no hourly record
21 Aug 01:40 74 75 open - no hourly record
18 Aug 21:40 74 74 closed - -
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.

Class chat

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