Some expectations are different for each student that is in Visual Arts. The reason for different expectations is because some students are more artistically advanced than others. For example, a seventh grade student who took my sixth grade art class should be more advanced than a 7th grade student who has never taken art. Therefore, I have a higher expectation for my more advance students.
Even though each student has an individual expectation, all my classes have the same bottom line expectation: All I want is all you have. By this I mean, put forth the best effort you can. In doing so any student can and will become better at these techniques; this is fact. I have seen this happen time and time again. Those students who say they can become better will become better. Those who say they can't, don't. It is solely up to the student, not the teacher. I do my job, I expect my students to do their job.