Historical instructor

Grant Petty

Adjusted rating
RMP difficulty
captured reviews
About this rating

Raw average: 4.32/5 from 41 quality ratings. The adjusted rating blends this with the UW review average (3.66/5), weighted as 20 additional ratings. Smaller samples stay closer to that average. Each captured review is counted once in the prior; this does not correct who chooses to leave a review.

RMP profile ↗ · All captured review dates; profile matched by name.

What students say

Original student reviews · all captured dates

AOS330 · course not matched
Quality 5/5Difficulty 2/5
Was very calm and easy to understand. Was never too tough on grading or homework and tests made sense and long as you looked over the study questions.
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AOS330 · course not matched
Quality 5/5Difficulty 4/5
Professor Petty is one of the best professors I've had. Exams are tough, but if you study an A is not out of the question. Lectures are crystal clear, and if you're not super clear on a concept, he's more than willing to answer questions.
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AOS330 · course not matched
Quality 4/5Difficulty 5/5
Lecture is interesting but his tests are unfair. Try to take it with Ackerman if you have the option.
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330 · course not matched
Quality 5/5Difficulty 4/5
He teaches straight from the book which means you can get away with skipping a class if needed. He is very clear in how he teaches topics. The exams seem like they would be very easy, but somehow are very difficult so a lot of studying is necessary.
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AOS330 · course not matched
Quality 5/5Difficulty 2/5
Prof Petty is an amazing professor. Smart, gets his points across, teaches straight from the book so it's ok if you miss a day, attractive... funny, too! His exams and grading were very fair.
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AOS100 · course not matched
Quality 5/5Difficulty 1/5
SUNDOGS! The best teacher for taking Weather/Climate. Heard the other one tried to act too hard.
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Personal experiences, not a representative survey. Profile matching and captured coverage are shown in the source details.

Classes with Grant Petty

No teaching recorded in Fall 2026.

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Recorded teaching history

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Teaching history may be incomplete. Course pages contain course-specific feedback and citations.

Instructor identity & provenance 
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