text: Teachers know what areas they want to target in summer projects. For example, a Precalculus project may be a review of factoring from Algebra II as it is a nessescary skill to have mastered for that class. Teachers will tend to target skills that students will need to have mastered as a method to prepare for the upcoming school year. A majority of skills they target are ones that students forget the most and ones that students have the most difficulty on. If students were to make their own projects, there is a good chance they completely miss the areas that teachers want them to focus on. Therefore, teachers should make summer projects because they know what topics they want students to learn over the summer.