Can the teacher repeat the exam so that the students will get better grades?
Question

                One of the female students is asking: 

We had a math exam at school and the marks that we got were low, so we asked the teacher to let us repeat the exam so that we could get better grades, but she refused on the grounds that one of the Shaykhs had issued a fatwa saying that improving grades is haraam. What is your opinion?.
Praise be to Allah.
    If repeating the exam does not go against the school’s rules 
    and is not unfair to others, then there is nothing wrong with it. Unfairness 
    here means that other classes in the same school are not also given the 
    opportunity to repeat the exam or some students in the same class, or other 
    classes, who got good grades and repeating the exam will cause them hardship 
    or may make their grades go down. If the exam can be repeated without 
    unfairness to anyone, there is nothing wrong with it in that case, and some 
    educational systems allow those students who wish to, to repeat tests, and 
    the higher grade will be recorded for them.  

    But if the system does not allow repeating exams, then it is 
    essential to seek the permission and agreement of the administration. 

    And Allaah knows best.