Professor Naranjo is one of those physics professors who doesn't believe in plug-and-chug questions, there is not one number to be found in any of his tests. He definitely is one of those professors who grossly overestimates the class' background knowledge in math and physics, so lecture can be hard to follow. Although he cares about his students' learning and is actually pretty understandable during office hours, lectures are a lost cause - he is sadly not an engaging lecturer and his handwritten notes are impossible to decipher. He is quite lenient on homework - although it is not fully completion, if an earnest attempt at solving each question is made, with some reasoning behind it, you should usually get full points.