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MAT SCI 130 · Lec 1

Phase Relations in Solids

Fall 2026Balonis, M.4 units

Seats, time, final and grades

Seats

Open, 4 seats left.

51 of 55 enrolled, lecture and all discussions summed.

Meets

TR 8:00am-9:50am

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

Final

Tue 8 Dec, 11:30am to 2:30pm

One exam for the whole class, Los Angeles time.

Read 2 days ago.

Grades

3.18
predicted, this instructor · 206 grades

206 letter grades, Balonis, M..

Read 2 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 13 times since 17 August. The last time was 15 September. 11 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 2 days ago: "Undergraduate Materials 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 2 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.

1 discussion, all open.

  • Dis 1A

    F 2:00pm-2:50pm

    Chen, P.

    Open, 4 seats left.

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 8:00am-9:50am

Discussions: F 2:00pm-2:50pm

Dodd Hall 167

Grades

3.18
predicted, this instructor · 206 grades
A range
48%
P/NP
-
letter grade only
D/F/W
5.8%

Full grade history for MAT SCI 130

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.

MAT SCI 130 reviews for Magdalena Balonis Reviews for all professors of MAT SCI 130

Will it still be here

medium risk chance of closing before your enrollment pass.

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

  • 2621F
  • 3422F
  • 4623F
  • 5324F
  • 4725F
Enrollment by term: 21F 26, 22F 34, 23F 46, 24F 53, 25F 47

Peak 53 · most recent 25F at 47

Seats over time

Nothing read since 2 Oct, 2 hours ago. Over about 2 months before that, filled by 11.

13 times reopened
51 of 55 · 4 left in its discussions
17 Aug 15:079 Sep 07:542 Oct 00:42 · 2 hours ago
dibs read 168 of the 540 hours its hourly record covers, 31%, and did not look in 372. dibs had no hourly record before 9 Sep, which is the other 550 of 1090 plotted.51 of 55 enrolled at the newest reading, 2 hours ago, with 4 left in its discussions. Seats from 17 Aug 15:07 to 2 Oct 00:42, 40 to 51. dibs read 168 of the 540 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 372 hours dibs was keeping a record and did not reach this section. Nothing before 9 September at 13:00, where this section's record starts, has a read either way, which is 550 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 2 hours ago. It is where the line stops, not where the count is now.

Show the readings (40)
Recorded Enrolled Capacity Status Waitlist Hours read
2 Oct 00:42 51 55 open - 15 of 44
30 Sep 05:22 51 55 open - 43 of 146
24 Sep 04:12 52 55 open - 2 of 6
23 Sep 23:42 51 55 open - 2 of 4
23 Sep 20:12 52 55 open - 63 of 200
15 Sep 13:52 51 55 open - 2 of 4
15 Sep 10:02 52 55 open - 3 of 9
15 Sep 02:22 51 55 open - 4 of 12
14 Sep 15:52 51 51 closed - 2 of 4
14 Sep 12:22 51 55 open - 19 of 59
12 Sep 02:32 51 51 closed - 2 of 4
11 Sep 23:52 49 49 closed - 3 of 5
11 Sep 19:42 51 51 closed - 2 of 4
11 Sep 16:40 49 49 closed - 2 of 2
11 Sep 15:40 51 51 closed - 18 of 207, 156 no hourly record
3 Sep 01:40 49 49 closed - no hourly record
2 Sep 23:40 48 49 open - no hourly record
2 Sep 17:40 48 48 closed - no hourly record
2 Sep 16:40 48 49 open - no hourly record
2 Sep 13:40 48 48 closed - no hourly record
2 Sep 11:40 48 49 open - no hourly record
1 Sep 01:40 48 48 closed - no hourly record
31 Aug 23:40 44 44 closed - no hourly record
31 Aug 22:40 44 48 open - no hourly record
31 Aug 21:40 44 44 closed - no hourly record
31 Aug 19:40 44 48 open - no hourly record
31 Aug 16:40 44 44 closed - no hourly record
31 Aug 15:40 44 48 open - no hourly record
31 Aug 13:40 44 44 closed - no hourly record
31 Aug 12:40 44 48 open - no hourly record
28 Aug 01:40 44 44 closed - no hourly record
27 Aug 22:40 43 44 open - no hourly record
27 Aug 21:40 44 44 closed - no hourly record
27 Aug 20:40 43 44 open - no hourly record
27 Aug 19:40 44 44 closed - no hourly record
27 Aug 08:40 43 44 open - no hourly record
21 Aug 20:40 43 43 closed - no hourly record
20 Aug 23:40 42 43 open - no hourly record
18 Aug 19:40 42 42 closed - no hourly record
17 Aug 15:07 40 42 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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