I’m wondering if it is sane to take these three courses over one summer at my local community college. I currently have a decent math background (an A in AP Calculus AB) and an A in AP Physics C: Mechanics too. Each of these courses are 4 credit hours each. I’m planning to take these courses in case I have an unusable score on my AP exams. Plus I want to get the legitimate college version of these courses. Is this too hard considering I have previous experience in the subject? I won’t have anymore things to do over the summer than to volunteer for a maximum of 5 hours a week so I thought why not do this? 
@xrocker Check with your community college. For summer session a full time load at a California CC is considered to be 6 units. At my D’s community college, taking more than 11 units during summer requires approval from a college counselor and requires filing a petition to enroll beyond maximum units. Personally, I think 12 units is too much for a summer session.
This does not sound like a good idea, on several levels:
- The only way you could take Calc I and Calc II in the same Summer is if there are two Summer sessions that run in series. In such situations, each Summer session is much more abbreviated than the equivalent Fall/Winter/Spring sessions. While efficient, it means that each of these courses would be greatly accelerated, which means that they will be more challenging to achieve an excellent grade.
- At every college I know, Engineering Physics I has a prerequisite of Calc I, will they even let you enroll in Engineering Physics until you show a grade in Calc I?
- Are you expecting to take Calc I in the first Summer session, then Engnr Phys I PLUS Calc II in the second session? If so, that is even more challenging than taking one course during each session. You can probably do it, but I wonder if you can do it well.
- Even though you don’t have many other commitments, I don’t see how you can excel at all 3 of these courses in one Summer. Each one is incredibly time-consuming.
- If you are not sure that you will get a ‘usable’ AP Calc AB score, then you are implying that you did not necessarily do very well on the exam. Even though much of the material in Calc I will be a review of AP Calc AB, you will have to do better than you probably did on the Calc AB exam in order to advance to Calc II (and take Engineering Physics?)
- Even if you somehow successfully complete these courses, do you have any assurance that you can transfer them elsewhere? The only way that this will work easily is if you stay at the community college to complete the rest of the year-long Engineering Physics sequence. If you are expecting to take Physics II elsewhere, you better check to see if they will accept Phys I from this CC as a vetted prerequisite.
Some would say that’s debatable. I know my community-college Calc 3 was probably easier than my friends’ university Calc 3, and definitely easier than my university honors Calc 1, Calc 2, and DiffEq.
Sorry for the bump, advice taken, I’m signing up for calculus I, general chemistry I + lab, and an intro to the arts class. I think this schedule is much more sane? 
? (11 credit hours total)