text: Students are far more likely to complete an assignment to the best of their ability if they are interested in what they're doing. The usual projects assigned by teachers are often boring and can be done well enough for a good grade in around an hour of solid work. However, if the student is passionate about the project they will go above and beyond in order to inform their teachers and peers about the topic they have chosen. Students who pick their own project get to show off what they know and what they've learned which is a huge incentive in and of itself.