It depends on the scholarship. Some scholarships for future teachers are awarded directly to you, the student, instead of through the school. This allows you to use the financial aid resources to pay tuition, but also to use it to buy books, supplies, and pay for housing and food. Supplies include basic things like calculators, paper, pencils and pens, notebooks, 3x5 cards, etc. But they also include big ticket items like laptops or tablets. So while the primary use for scholarships is tuition, if you earn more financial aid resources than your tuition and room/board amounts to, that money can go toward all sorts of education-related expenses.