Naranjo is a super cool guy, just not the best teacher. I didn't really feel I got that much out of his class. That being said, he's very understanding, and very helpful. He will walk you through things during office hours so I would definitely recommend going if you're confused on HW. The tests were pretty hard, but you were given 24 hours so you can work out the stuff if you think about it long enough. Overall, a very nice guy, but if you're looking to gain a deep understanding of the concepts I might not recommend him. However, it'll be much easier to get a good grade here than, say, Corbin.

Disclaimer - Took Naranjo for Physics 5C (Electricity and Magnetism)

Lectures are not recorded, but Prof. Naranjo provided detailed notes that were basically a word-for-word transcription of lecture (he read off of them during class). I wouldn't say he has the strongest public speaking skills for lecture, but I give him a lot of credit for the clarity of his notes as well as his exams. Exams were very straightforward as long as you did the Mastering Physics homework. Prior to each exam I basically just spedrun every Mastering Physics.

I'm sure Naranjo will have lots of negative reviews due to his difficulties teaching (especially at the beginning of the quarter), but I think he is a good physics professor and a great guy. It was his first quarter teaching, so the first weeks of lecture were pretty rough, with lots of stuttering. However, Naranjo improved dramatically by the end of the quarter, and he was very receptive of student feedback. He is clearly a warm and friendly person with a genuine passion for his students and for physics.

His teaching could be confusing, especially for material such as complex math and differential equations. Additionally, he taught VERY quickly, often going through multiple chapters in one lecture. Homework problems could be difficult at times, but if you go to his office hours he will work through the problems for you. Exams took a shockingly long time.

Overall, Naranjo was not the best or most polished professor, but he is definitely helpful and a very likeable person. His passion for physics really comes through.