Here are 10 exercises on quotations in Othello. They are designed for pair-work 15-minute sessions in class, but work perfectly well for individuals. You need to know the play well, so these are for revision at a late stage of study. The purpose is to make your mind work hard: retrieving factual details, certainly, about the sequence of the play, individual quotations and so on, but more importantly know making you think and create connections, and have a debate with a partner.
You don’t need to write on the original sheet itself: just take a piece of paper and jot down your responses. When finished find the quotation in context from the text itself, and then fill in any gaps.