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Dibs Fall 2026

CLUSTER 70A

Evolution of Cosmos and Life

Lecture, three hours; discussion, two hours. Course 70A is enforced requisite to 70B, which is enforced requisite to 70CW or 70DW. Limited to first-year freshmen. Use of concept of evolution, as it applies to biological organisms, Earth, solar system, and universe itself, to introduce students to both life and physical sciences. Examination of evolution of universe, galaxy, solar system, and Earth. P/NP or letter grading.

Course statistics

Predicted GPA
3.67
n = 1,020 · 4 terms · ± 0.017
A range
78%
of letter grades
Taken P/NP
0%
100% of those passed
D / F / W
1.5%
incl. withdrawals

Sections in Fall 2026

Sections offered, with live enrollment and predicted GPA
Section Status Enrolled Seat risk Meets Instructor Predicted GPA
Lec 1 Open
160 of 161
99% full
 fills TR 11:00am-12:15pm Friscia, A.R., Jewitt, D.C., Supriya, K.
3.70n=789 · this instructor

Enrollment history

Final enrollment per term, averaged across that term's sections. Four years deep, summer excluded. Per-section live curves are on each section page.

  • 23221F
  • 23622F
  • 25723F
  • 29924F
Enrolment by term: 21F 232, 22F 236, 23F 257, 24F 299
Peak 299 Most recent 299 in 24F 4 terms on record

Grade distribution

  • A+ 100 · 9.8%
  • A 458 · 44.7%
  • A- 233 · 22.8%
  • B+ 93 · 9.1%
  • B 74 · 7.2%
  • B- 24 · 2.3%
  • C+ 9 · 0.9%
  • C 8 · 0.8%
  • C- 6 · 0.6%
  • D+ 1 · 0.1%
  • D 4 · 0.4%
  • D- 4 · 0.4%
  • F 6 · 0.6%
  • P 3 · 0.3%
  • I 1 · 0.1%

Grey bars are non-letter outcomes — P/NP, S/U, incompletes. They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.

By instructor

Instructor Predicted Raw n Terms A range
FRISCIA, ANTHONY RAYMOND 3.70 3.70 789 3 79%
JEWITT, DAVID CLIFFORD 3.72 3.72 555 2 81%
PETIGURA, ERIK A 3.72 3.72 555 2 81%
SUPRIYA, K 3.76 3.76 298 1 84%
BROWN, CAITLIN ANNA-CORBETT 3.57 3.56 231 1 71%

“Predicted” is shrunk toward the course average, which is itself shrunk toward the department — so an instructor with a handful of students sits near the course mean rather than topping the list.

By term