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Fall 2026
Environmental Biogeochemistry
Environmental Biogeochemistry explores global biogeochemical cycles and their interactions in terrestrial ecosystems.
Summary
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Recent recorded grades — Fall 2023: 3.77 GPA, 93.3% A/AB (n=15 letter grades); Fall 2024: 3.56 GPA, 68.8% A/AB (n=16 letter grades); Fall 2025: 3.59 GPA, 73.9% A/AB (n=23 letter grades).
Grade history
↗ average GPA
letter grades
letter grades
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AB
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Fall 2026Recent recorded grades — Fall 2023: 3.77 GPA, 93.3% A/AB (n=15 letter grades); Fall 2024: 3.56 GPA, 68.8% A/AB (n=16 letter grades); Fall 2025: 3.59 GPA, 73.9% A/AB (n=23 letter grades).
Historical instructors & teaching patterns
XIA ZHU BARKER is recorded teaching in Fall 2022, Fall 2023, Fall 2024, Fall 2025. Recorded history may be incomplete and does not establish a future schedule.
Recorded history may be incomplete and does not establish a future schedule.
Calendar & sections
Fall 2026Schedule loads here as you scroll.
| Section | Mode | Enrolled / capacity | Waitlist |
|---|---|---|---|
| LEC 001 | Classroom Instruction | 7 / 45 | 0 |
| LEC 001 | Classroom Instruction | 27 / 45 | 0 |
Times are Central. Select a meeting for details; export includes recorded dates for the selected sections. Enrollment reflects scan time.
Meeting source records
Student experience
the class
Recent recorded grades — Fall 2023: 3.77 GPA, 93.3% A/AB (n=15 letter grades); Fall 2024: 3.56 GPA, 68.8% A/AB (n=16 letter grades); Fall 2025: 3.59 GPA, 73.9% A/AB (n=23 letter grades).
difficulty & workload
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Topics
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Grades
Latest available · Fall 2025— not enough history to project Fall 2026.
Grade distribution · % of letter grades
A
AB
B
BC
C
D
F
Grades over time
Through Fall 2025
More grade details Grade mix, volume & source data
Not enough comparable courses for Fall 2026 in UW–Madison.
Sources & history
UW–Madison
Catalog & offerings
Descriptions, prerequisites, and recorded course offerings.
Catalog observation history
Observations at scan time; dates do not imply when a catalog change took effect.
Selected offering source records
Environmental Biogeochemistry
Recorded 2026-09-07Environmental Biogeochemistry
Recorded 2026-09-07Raw records
[
{
"run_id": "20260907T155543-ce3781c4",
"semester": "1272",
"observed_at": "2026-09-07 15:55:43.033547+00:00",
"offering_id": "1272:396:017818",
"course_id": "F&WECOL/SOILSCI 451",
"course_uid": "course_320839f5400adc2bff5733ca",
"term_id": "1272",
"source_course_id": "017818",
"source_subject_id": "396",
"title": "Environmental Biogeochemistry",
"credits_min": 3,
"credits_max": 3,
"typically_offered": "Spring"
},
{
"run_id": "20260907T155543-ce3781c4",
"semester": "1272",
"observed_at": "2026-09-07 15:55:43.033547+00:00",
"offering_id": "1272:908:017818",
"course_id": "F&WECOL/SOILSCI 451",
"course_uid": "course_320839f5400adc2bff5733ca",
"term_id": "1272",
"source_course_id": "017818",
"source_subject_id": "908",
"title": "Environmental Biogeochemistry",
"credits_min": 3,
"credits_max": 3,
"typically_offered": "Spring"
}
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Madgrades
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Explore recorded gradesModel outputs & technical records
nvidia/Qwen3.6-35B-A3B-NVFP4
LLM outputs across runs
Full model traces
Recorded model configuration, reasoning, and tool conversations.
Model & dataset provenance
{
"model": "nvidia/Qwen3.6-35B-A3B-NVFP4",
"model_revision": "1355db6a052410cfd62085d94b58866fd0f2c3c5",
"task_version": "14",
"output_id": "87899c720d85088d29c7ad183ff1aca655c224ebf6420973893c55a730af7ac2",
"requirements_status": "valid",
"dataset_revision": "e243353dcb7d79b7247ced91d69443ef4c2a6349",
"observed_at": "2026-09-07 15:55:43.033547+00:00"
}