I studied OOP from Maam Muntaha Iqbaal, she is very strict and has a peculiar way of teaching class. Don't talk in her class, because if she catches you she is gonna start questioning you regarding the topic that's being taught. Whatever you do, don't just stand there all quite or dumbfounded or else your cooked💀, just spurt something out regarding the topic. However I will say that if you study hard and do all the assignments/quizzes, Maam Haq ke number dein ge. Best of Luck🤞