John Cogan

cogan.1@osu.edu 2.7★(232)diff 3.742% would retake2.99 GPAreddit· Students strongly advise avoiding Cogan for Biochem — his tests are brutal and his teaching style gets poor reviews.(8)

Grade history

2,407 students across 5 courses · avg 2.99

2.82 GPAmedian 3.0

1,869 students · 10 terms

1,869 students total · 10 terms · click to see per-term

3.58 GPAmedian 3.7

303 students · 2 terms

303 students total · 2 terms · click to see per-term

3.50 GPAmedian 3.7

134 students · 2 terms

134 students total · 2 terms · click to see per-term

4.00 GPAmedian 4.0

62 students · 3 terms

62 students total · 3 terms · click to see per-term

3.29 GPAmedian 3.7

39 students · 2 terms

39 students total · 2 terms · click to see per-term

Source: historical OSU grade releases via thegradeguide.com (Adam Gluck), Spring 2016 – Summer 2023. FERPA-filtered: sections under 10 students excluded.

Sections this term

1

Courses

1

Enrolled

16

Open sections

0

Teaching Autumn 2026

BIOCHEM 5621Biochem/MolBio Lab

1 section

#	Sec	Days/Time	Room	Enrollment
23496	0300	TR 8:00 am-9:30 am	BI 684 684	Closed · 16/16+2 wl

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