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MAT SCI 252 · Lec 1

Organic Polymer Electronic Materials

Fall 2026Yang, Y.4 units

dibs reads this section's seats hourly, like everything else, but it does not send alerts for graduate courses yet.

Seats, time, final and grades

Seats

Open, 2 seats left.

38 of 40 enrolled, lecture and all discussions summed.

Meets

TR 2:00pm-3:50pm

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

Final

Mon 7 Dec, 8:00am to 11:00am

One exam for the whole class, Los Angeles time.

Read 4 days ago.

Grades

3.50
predicted, all instructors · 113 grades

113 letter grades, everyone who has taught MAT SCI 252.

Read 54 minutes ago. This is a recent reading, not a live seat count.

dibs has seen this section open 5 times since 17 August. The last time was 30 September.

Enroll on the registrar (opens in a new tab)

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

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 4 days ago. dibs re-reads these slowly because they rarely change, and it does not sweep graduate courses at all, so this one has no faster cadence to move to. Check the registrar.

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.

1 discussion, all open.

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: TR 2:00pm-3:50pm

Discussions: F 8:00am-8:50am

Boelter Hall 5280

Grades

3.50
predicted, all instructors · 113 grades

1 other person has taught MAT SCI 252 in the grade record: PEI, QIBING at 3.51 over 113 grades.

A range
67%
P/NP
-
letter grade only
D/F/W
0.9%

Full grade history for MAT SCI 252

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.

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.

Reviews for MAT SCI 252 Search the reviews for Y. Yang

Will it still be here

Not a question any more: see the notice at the top of this page.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 1321F
  • 2122F
  • 2023F
  • 3624F
  • 2325F
Enrollment by term: 21F 13, 22F 21, 23F 20, 24F 36, 25F 23

Peak 36 · most recent 25F at 23

Seats over time

Filled by 12 over about 2 months

5 times reopened
38 of 40 · 2 left in its discussions
17 Aug 15:079 Sep 06:141 Oct 21:22
dibs read 168 of the 542 hours its hourly record covers, 31%, and did not look in 374. dibs had no hourly record before 9 Sep, which is the other 545 of 1087 plotted.38 of 40 enrolled at the newest reading, 54 minutes ago, with 2 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 21:22, 26 to 38. dibs read 168 of the 542 hours its hourly record here covers, 31%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 374 hours dibs was keeping a record and did not reach this section. Nothing before 9 September at 08:00, where this section's record starts, has a read either way, which is 545 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: 54 minutes ago.

Show the readings (43)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 21:22 38 40 open - 1 of 1
1 Oct 21:22 38 40 open - 2 of 5
1 Oct 17:52 39 40 open - 3 of 7
1 Oct 11:32 38 40 open - 4 of 11
1 Oct 01:32 37 40 open - 2 of 4
30 Sep 22:02 38 40 open - 2 of 5
30 Sep 18:32 37 40 open - 5 of 14
30 Sep 05:22 38 40 open - 2 of 6
30 Sep 00:52 39 40 open - 4 of 11
29 Sep 14:22 40 40 closed - 2 of 5
29 Sep 10:52 39 40 open - 2 of 4
29 Sep 07:22 40 40 closed - 3 of 8
29 Sep 00:22 39 40 open - 2 of 4
28 Sep 21:12 40 40 closed - 3 of 8
28 Sep 14:12 37 40 open - 2 of 5
28 Sep 10:52 38 40 open - 5 of 14
27 Sep 21:32 37 40 open - 7 of 21
27 Sep 01:12 36 40 open - 6 of 19
26 Sep 07:42 35 40 open - 12 of 39
24 Sep 17:22 38 40 open - 5 of 14
24 Sep 04:12 40 40 closed - 2 of 6
23 Sep 23:42 38 40 open - 2 of 4
23 Sep 20:12 40 40 closed - 7 of 22
22 Sep 23:42 38 40 open - 2 of 4
22 Sep 20:12 39 40 open - 2 of 4
22 Sep 17:22 38 40 open - 6 of 18
22 Sep 00:22 39 40 open - 3 of 8
21 Sep 17:32 38 40 open - 16 of 50
19 Sep 16:42 37 40 open - 6 of 15
19 Sep 02:52 36 40 open - 20 of 63
16 Sep 12:22 35 40 open - 8 of 24
15 Sep 13:52 36 40 open - 2 of 4
15 Sep 10:02 35 40 open - 3 of 9
15 Sep 02:22 36 40 open - 4 of 12
14 Sep 15:52 30 40 open - 2 of 4
14 Sep 12:22 31 40 open - 32 of 92
10 Sep 17:40 30 40 open - 13 of 181, 147 no hourly record
3 Sep 05:40 29 40 open - no hourly record
30 Aug 12:40 28 40 open - no hourly record
25 Aug 02:42 27 40 open - no hourly record
20 Aug 17:40 28 40 open - no hourly record
19 Aug 08:40 27 40 open - no hourly record
17 Aug 15:07 26 40 open - -
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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