Riobo is a really nice man, but a horrible teacher. He is extremely disorganized and often forgot to grade papers, percieved instructions differently than the students, and once didn't remember to prepare the second half of a lecture.
However, he is very flexible as well as understanding. The students can tell he sincerely wants to be a good teacher, but his abstact and jumbled way of thinking often prohibits him from doing so. Also. he teaches this same class in Spanish and confuses what he told each class. On the upside, he grades fairly easily.