Course record Mathematics

Mathematics 221

Intro to Linear Algebra

Southern Illinois University-Carbondale

128 grades7 sections3 professors
Grades: 2023–2026
Flunk Score12/100
Needs work

Professors 3 of 3

Kwangho Choiy 48 grades · 3 terms · 2024–2025 3.44GPA
62.5% A
29.2% B
0.0% C
6.3% D
2.1% F

48 letter grades · 3 sections · 2024–2025

Compare with the course
Choiy vs. the course average
A +24.2
B +1.0
C −17.2
D −3.9
F −4.2

Difference in percentage points.

7.7% withdrew · 4 of 52 enrolled.

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Dashun Xu 60 grades · 3 terms · 2023–2025 2.62GPA
25.0% A
30.0% B
30.0% C
11.7% D
3.3% F

60 letter grades · 3 sections · 2023–2025

Compare with the course
Xu vs. the course average
A −13.3
B +1.9
C +12.8
D +1.5
F −2.9

Difference in percentage points.

16.7% withdrew · 12 of 72 enrolled.

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Jianhong Xu 20 grades · 1 term · 2026 · Limited sample 1.95GPA
20.0% A
20.0% B
20.0% C
15.0% D
25.0% F

20 letter grades · 1 section · 2026 · Limited sample

20.0% withdrew · 5 of 25 enrolled.

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