I'm doing an informal postbac right now, and I'm trying to figure out what classes I'm going to take this Fall. From what I've read on these boards, people seem to recommend not retaking a class, but instead taking a higher level version of it (ie upper div if possible.) So my question is, when I took Ochem 1 and 2 as an undergrad they were lower division courses. The same courses however are upper division here at the CSU that I'll be attending. I call them the same because I've checked out the syllabus, looked at the book/topics etc and it's the exact same course that I've already had. So is it ok for me to take these classes since I'll technically be taking a "higher level" course? Another question I have is that I got an A- in Ochem 1, but a C in Ochem 2. I don't need (nor do I want) to take ochem 1 again...but I haven't had any organic in almost 4 years. Should I just review/relearn all the Ochem 1 stuff and take the new upper division Ochem 2 OR should I retake both Ochem 1 and 2 since they are technically upper division and at a higher level than what I've previously had?