To paint a scenario, a process is somewhat regulated by an outside authority on what needs to be taught, understood and implemented. The teaching arm of this authority is allowed to arrange these how they wish or see fit and devises a structure, which they then disseminate to their teachers. They also semi-frequently change the curriculum structure.
If a pupil does not find easy comprehension or finds it to be ill suited to their learning style or method, may he - with halachic and/or hashkafa backing - ask for the content to be rearranged and/or ask for changes in the teaching method?
I am pulling this question from this article, which covers some of the textual backings / analysis.
Edited to include the note that this is all within the Jewish community and Jewish organizations.