Reviews of professor Sara Hanrahan

Rating: 3.0/5, difficulty: 5.0/5
You have to go to class and take very detailed notes and still then the tests are extremely hard. In biomaterials, it was extremely interesting stuff and you can tell she is extremely excited about the stuff she I teaching but the test is super detailed and sometimes badly worded. Her homeworks take almost 6 hour but theyre given once a week max

Rating: 4.0/5, difficulty: 4.0/5
Shes very knowledgeable but she makes you work for every piece of information you get. GO TO THE EXAM REVIEW SESSIONS!!! Her homeworks take 6+ hours each so plan ahead. Do not take her for more than one course a semester

Rating: 5.0/5, difficulty: 4.0/5
Sara Hanrahan is one of the more passionate engineering professors I have taken at UTK; I can genuinely tell that she loves her job and her students. That being said, her teaching style can be challenging at times. Showing up to lecture and taking notes is not enough to pass the course. I recommend her as a professor, but be prepared to do work.

Rating: 5.0/5, difficulty: 3.0/5
Records her lectures so you don't have to attend class and the final is replaced by a group project that she gives good feedback on. 
She is so sweet and you can tell she knows what she is talking about, and she is also quick to respond to emails and help out when needed.

Rating: 5.0/5, difficulty: 3.0/5
I really liked Dr. Hanrahan. The material isn't easy but she's really helpful when you go to her office hours, and she's open to more flexible meeting times if you need it. The homework sets can be pretty lengthy but you only have a few of them through the semester. Make sure you take good notes and ask for help if you need it and you'll do fine

Rating: 2.0/5, difficulty: 4.0/5
Dr. Hanrahan's lectures are very monotonous. She basically rewrites her notes on the board. Her exams cover a lot of material, so be sure to study well in advance and study all the details because some of her exam questions are very specific. Just be sure to stay ahead and pay attention in lecture and put a lot of effort into the project.