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MATH 142 · Lec 1

Mathematical Modeling

Fall 2026Johnson, C.L.4 units

Seats, time, final and grades

Seats

Open, 9 seats left.

71 of 80 enrolled, lecture and all discussions summed.

Read 4 hours ago. The latest refresh is overdue. Seats and instructors may have changed since. Check the registrar before enrolling.

Meets

MWF 9:00am-9:50am

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

Final

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

One exam for the whole class, Los Angeles time.

Read 6 days ago.

Grades

2.96

Predicted GPA

Historical records for JOHNSON, CASEY LYNN; 163 letter grades

dibs has seen this section open 11 times since 18 August. The last time was 25 September.

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A watch slot

25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.

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Before you can enroll

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From the registrar

Information on the Mathematics Placement Test and Advanced Placement (AP) credit is available at https://uclamathugrad.zendesk.com/ .

Restrictions checked 6 days ago and may be outdated. Unwatched sections are rechecked less often than watched sections. Check the registrar before counting on a seat.

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.

2 discussions, 1 open: Dis 1B, R 9:00am-9:50am.

  • Dis 1A

    T 9:00am-9:50am

    Zender, M.

    Closed.

  • Dis 1B

    R 9:00am-9:50am

    Zender, M.

    Open, 9 seats left.

When it meets

Discussion alternatives are shown with the lecture; choose one linked discussion.

Mon
Tue
Wed
Thu
Fri
9am

Lec 1

9am-9:50am

Dis 1A

9am-9:50am

Lec 1

9am-9:50am

Dis 1B

9am-9:50am

Lec 1

9am-9:50am

Scroll sideways for the whole week. All meeting times are listed below.

  • Lec 1

    MWF 9:00am-9:50am

  • Dis 1A (alternative; recorded closed)

    T 9:00am-9:50am

  • Dis 1B (alternative)

    R 9:00am-9:50am

Renee and David Kaplan Hall 135

Grades

2.96

Predicted GPA

Historical records for JOHNSON, CASEY LYNN; 163 letter grades

Of the 6 other people in the grade record for MATH 142, the 2 with the most grades: BISWAL, SHIBA at 2.39 over 200 grades and PORTER, MASON ALEXANDER at 3.54 over 82 grades.

A range
40%
P/NP
1%
D/F/W
10.4%

Full grade history for MATH 142

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.

Workload, average. 2.6 of 5 for Casey Johnson, where 5 is lightest. Read 14 days ago.

No assignment details are available in this review summary. Based on 66 reviews; source checked about 1 month ago. Missing details do not mean there are no papers or exams. Check the current syllabus.

MATH 142 reviews for Casey Johnson Reviews for all professors of MATH 142

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.

  • 4222S
  • 4122F
  • 5623W
  • 5123S
  • 4223F
  • 4524W
  • 3925W
  • 4225S
  • 3925F
Enrollment by term: 22S 42, 22F 41, 23W 56, 23S 51, 23F 42, 24W 45, 25W 39, 25S 42, 25F 39

Peak 56 · most recent 25F at 39

Seats over time

Nothing read since 16 Oct, 4 hours ago. Over about 2 months before that, freed 9 seats.

11 times reopened
71 of 80 · 9 left in its discussions
18 Aug 18:4117 Sep 05:4216 Oct 16:42 · 4 hours ago
Checked 168 of the 605 hours with hourly history, 28%. No reading was recorded in 437 hours. dibs had no hourly record before 21 Sep, which is the other 810 of 1415 plotted.71 of 80 enrolled at the newest reading, 4 hours ago, with 9 left in its discussions. Seats from 18 Aug 18:41 to 16 Oct 16:42, 80 to 71. Checks are not continuous monitoring. Changes between checks may be missed.

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 4 hours ago. It is where the line stops, not where the count is now.

Show the readings (95)
Recorded Enrolled Capacity Status Waitlist Hours read
16 Oct 16:42 71 80 open - 1 of 1
16 Oct 16:42 71 80 open - 2 of 4
16 Oct 13:12 70 80 open - 2 of 5
16 Oct 09:42 71 80 open - 25 of 79
13 Oct 03:52 70 80 open - 4 of 11
12 Oct 17:42 71 80 open - 3 of 5
12 Oct 13:52 70 80 open - 4 of 11
12 Oct 03:52 71 80 open - 2 of 4
12 Oct 00:02 72 80 open - 2 of 5
11 Oct 20:32 71 80 open - 7 of 21
11 Oct 00:52 72 80 open - 7 of 24
10 Oct 01:33 71 80 open - 2 of 11
9 Oct 15:12 70 80 open 0 of 6 5 of 14
9 Oct 02:32 69 80 open 0 of 6 15 of 50
7 Oct 01:32 70 80 open 0 of 6 2 of 4
6 Oct 22:02 71 80 open 0 of 6 2 of 5
6 Oct 18:32 73 80 open 0 of 6 2 of 4
6 Oct 15:02 71 80 open 0 of 6 4 of 12
6 Oct 04:32 73 80 open 0 of 6 2 of 5
6 Oct 00:02 74 80 open 0 of 6 3 of 8
5 Oct 17:02 73 80 open 0 of 6 2 of 5
5 Oct 13:32 74 80 open 0 of 6 2 of 4
5 Oct 10:22 73 80 open 0 of 6 3 of 9
5 Oct 02:22 74 80 open 0 of 6 4 of 34
3 Oct 17:22 73 80 open 0 of 6 2 of 2
3 Oct 16:12 74 80 open 0 of 6 3 of 8
3 Oct 09:12 73 80 open 0 of 6 3 of 7
3 Oct 03:52 74 80 open 0 of 6 6 of 18
2 Oct 10:02 72 80 open 0 of 6 4 of 13
1 Oct 22:02 71 80 open 0 of 6 2 of 5
1 Oct 18:32 72 80 open 0 of 6 8 of 26
30 Sep 17:02 71 80 open 0 of 6 6 of 20
29 Sep 22:32 70 80 open 0 of 6 2 of 4
29 Sep 19:02 71 80 open 0 of 6 2 of 5
29 Sep 15:32 71 80 open 1 of 6 2 of 4
29 Sep 12:02 71 80 open 0 of 6 6 of 19
28 Sep 18:32 71 80 open 1 of 6 2 of 4
28 Sep 15:02 70 80 open 1 of 6 4 of 12
28 Sep 04:32 71 80 open 1 of 6 3 of 8
27 Sep 21:32 73 80 open 1 of 6 2 of 4
27 Sep 18:02 74 80 open 1 of 6 6 of 19
27 Sep 00:02 73 80 open 1 of 6 2 of 5
26 Sep 20:32 73 80 open 2 of 6 2 of 4
26 Sep 17:02 73 80 open 1 of 6 2 of 5
26 Sep 13:32 73 80 open 2 of 6 4 of 11
26 Sep 03:02 75 80 open 2 of 6 5 of 15
25 Sep 13:02 77 80 open 2 of 6 4 of 12
25 Sep 02:22 78 80 open 2 of 6 3 of 8
24 Sep 19:22 80 80 waitlist 1 of 6 2 of 5
24 Sep 15:52 80 80 waitlist 0 of 6 4 of 11
24 Sep 05:22 80 80 waitlist 1 of 6 5 of 16
23 Sep 14:42 79 80 open 2 of 6 5 of 15
23 Sep 00:52 80 80 waitlist 1 of 6 2 of 4
22 Sep 21:22 79 80 open 1 of 6 2 of 5
22 Sep 17:52 80 80 waitlist 1 of 6 6 of 18
22 Sep 00:02 80 80 waitlist 2 of 6 4 of 9
21 Sep 16:22 79 80 open 2 of 6 2 of 5
21 Sep 12:52 80 80 waitlist 3 of 6 1 of 12, 11 no hourly record
21 Sep 01:12 80 80 waitlist 1 of 6 no hourly record
20 Sep 18:12 79 80 open 0 of 6 no hourly record
20 Sep 14:42 77 80 open 0 of 6 no hourly record
20 Sep 12:12 78 80 open 0 of 6 no hourly record
20 Sep 00:52 77 80 open 0 of 6 no hourly record
19 Sep 17:52 75 80 open 0 of 6 no hourly record
19 Sep 14:32 74 80 open 0 of 6 no hourly record
19 Sep 03:52 73 80 open 0 of 6 no hourly record
18 Sep 20:52 72 80 open 0 of 6 no hourly record
18 Sep 17:22 70 80 open 0 of 6 no hourly record
18 Sep 13:52 71 80 open 0 of 6 no hourly record
18 Sep 10:22 70 80 open 0 of 6 no hourly record
17 Sep 12:22 72 80 open 0 of 6 no hourly record
17 Sep 00:52 73 80 open 0 of 6 no hourly record
16 Sep 21:22 72 80 open 0 of 6 no hourly record
16 Sep 17:52 73 80 open 0 of 6 no hourly record
16 Sep 10:52 71 80 open 0 of 6 no hourly record
16 Sep 07:32 72 80 open 0 of 6 no hourly record
16 Sep 04:12 71 80 open 0 of 6 no hourly record
16 Sep 00:22 69 80 open 0 of 6 no hourly record
15 Sep 20:52 70 80 open 0 of 6 no hourly record
15 Sep 12:42 69 80 open 0 of 6 no hourly record
15 Sep 05:42 78 80 open - no hourly record
12 Sep 19:52 79 80 open - no hourly record
12 Sep 12:52 80 80 closed - no hourly record
12 Sep 05:52 79 80 open - no hourly record
9 Sep 01:40 80 80 closed - no hourly record
8 Sep 18:40 79 80 open - no hourly record
30 Aug 01:40 80 80 closed - no hourly record
29 Aug 01:40 79 80 open - no hourly record
27 Aug 11:28 80 80 closed - no hourly record
26 Aug 22:40 79 80 open - no hourly record
26 Aug 17:40 80 80 closed - no hourly record
26 Aug 15:40 79 80 open - no hourly record
26 Aug 14:40 80 80 closed - no hourly record
26 Aug 04:40 79 80 open - no hourly record
18 Aug 18:41 80 80 closed - -
How readings and alerts work

Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.

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.

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