To be clear, because I think you accidentally a word, there, are you saying the teachers customized their curriculum to account for Ramadan fasting? Because as a teacher, I would find that...difficult, and that's even before the interests of fairness required that I accommodate the needs of other religions. I mean, I do accommodate special day-off requirements by giving X number of absences with no reason required, but a student missing something like every Friday when that's 1/3 of the class meetings isn't going to work.