Course record PHYSICS

PHYSICS 20A

Introduction to Astronomy

University of California-Irvine

3,116 grades34 sections11 professors
Grades: 2014–2025
Flunk Score17/100
Needs work

Professors 10 of 11

A. Ralston 76 grades · 2 terms · 2022–2024 3.81GPA
85.5% A
11.8% B
2.6% C
0.0% D
0.0% F

76 letter grades · 2 sections · 2022–2024

Compare with the course
Ralston vs. the course average
A +37.0
B −17.9
C −12.7
D −3.7
F −2.7

Difference in percentage points.

0.0% withdrew · 0 of 76 enrolled.

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A. Cooray 509 grades · 4 terms · 2021–2025 3.80GPA
87.4% A
8.3% B
2.6% C
1.0% D
0.8% F

509 letter grades · 4 sections · 2021–2025

Compare with the course
Cooray vs. the course average
A +38.9
B −21.5
C −12.8
D −2.7
F −1.9

Difference in percentage points.

Each term against the course average
Fall 2021Winter 2025

0.2% withdrew · 1 of 510 enrolled.

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L. Sandoval Ascen 95 grades · 1 term · 2024 3.57GPA
70.5% A
21.1% B
7.4% C
1.1% D
0.0% F

95 letter grades · 1 section · 2024

Compare with the course
Ascen vs. the course average
A +22.0
B −8.7
C −7.9
D −2.6
F −2.7

Difference in percentage points.

0.0% withdrew · 0 of 95 enrolled.

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P. Robertson 548 grades · 2 terms · 2021–2022 3.34GPA
59.5% A
28.3% B
7.1% C
1.6% D
3.5% F

548 letter grades · 2 sections · 2021–2022

Compare with the course
Robertson vs. the course average
A +10.9
B −1.5
C −8.2
D −2.0
F +0.8

Difference in percentage points.

0.9% withdrew · 5 of 553 enrolled.

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R. Keeley 61 grades · 1 term · 2025 3.13GPA
55.7% A
18.0% B
14.8% C
8.2% D
3.3% F

61 letter grades · 1 section · 2025

Compare with the course
Keeley vs. the course average
A +7.2
B −11.7
C −0.6
D +4.5
F +0.6

Difference in percentage points.

0.0% withdrew · 0 of 61 enrolled.

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T. Smecker-Hane 838 grades · 12 terms · 2014–2020 2.96GPA
34.8% A
38.1% B
18.5% C
5.3% D
3.3% F

838 letter grades · 15 sections · 2014–2020

Compare with the course
Smecker-Hane vs. the course average
A −13.7
B +8.3
C +3.2
D +1.6
F +0.6

Difference in percentage points.

Each term against the course average
Summer 2014Fall 2020

0.7% withdrew · 6 of 844 enrolled.

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D. Buote 343 grades · 3 terms · 2016–2020 2.88GPA
32.4% A
33.2% B
28.0% C
4.7% D
1.7% F

343 letter grades · 3 sections · 2016–2020

Compare with the course
Buote vs. the course average
A −16.2
B +3.5
C +12.7
D +1.0
F −0.9

Difference in percentage points.

0.3% withdrew · 1 of 344 enrolled.

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R. Remigio 28 grades · 1 term · 2023 2.81GPA
25.0% A
50.0% B
10.7% C
7.1% D
7.1% F

28 letter grades · 1 section · 2023

Compare with the course
Remigio vs. the course average
A −23.6
B +20.3
C −4.6
D +3.5
F +4.4

Difference in percentage points.

0.0% withdrew · 0 of 28 enrolled.

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A. Barth 298 grades · 2 terms · 2018–2023 2.79GPA
24.8% A
43.0% B
24.2% C
4.4% D
3.7% F

298 letter grades · 2 sections · 2018–2023

Compare with the course
Barth vs. the course average
A −23.7
B +13.2
C +8.9
D +0.7
F +1.0

Difference in percentage points.

1.0% withdrew · 3 of 301 enrolled.

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M. Cooper 297 grades · 2 terms · 2014–2019 2.74GPA
25.6% A
37.4% B
26.9% C
6.7% D
3.4% F

297 letter grades · 2 sections · 2014–2019

Compare with the course
Cooper vs. the course average
A −23.0
B +7.6
C +11.6
D +3.0
F +0.7

Difference in percentage points.

1.0% withdrew · 3 of 300 enrolled.

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