Summer school offers the opportunity to take classes over a short period of time.
Actually summer school is not as bad as it sounds. Most of the students have classes in the mornings, so they have the whole afternoon free. Classes meet daily, therefore require more effort. Even with that, some students, like Ximena Galvis from Colombia, manage to take nine credits. Students who live off-campus prefer to stay and study rather than pay four months of rent and not take advantage of it.