Go here if you want, but be aware that they feel that professors owe you only numerical grades (a job teaching assistants do at most real schools) and not actual feedback, help, or instruction.  If you get an unexplained poor grade and appeal it, all they will do is point to the grading rubric and say “here's where the points were deducted.” They will not show you what in your paper was wrong or missing or ask the professor to do so.

If you are satisfied with a numerical grade without feedback and with the knowledge that you will never get an explanation if you don't understand a grade, attend classes through CSU's Global Campus.  Professors at this institution are basically glorified TAs.  They give you a number and sometimes respond to discussions.  The rest of the course is pre-designed for them and all they have to do is fill in some blanks.  The course designers also often spell simple words like “exercise” wrong in assignment guidelines, and I have found several answers to tests that were incorrect in the system.