School of my dream
If I were a principal of the school I would cancel homework - I think it is wasting time! Then, I would make the breaks between lessons longer. Next, I would also improve the menu in school canteen - most of food is absolutely disgusting. I think students need more salads, fruit, and vegetables.
The next step is holidays. Summer holidays are long enough but I would make autumn, winter and spring holidays longer to let pupils to spend more time out or to travel.
Sports, Music, Arts and Crafts should be main subjects and the teachers have to be friendly, happy and experienced. So they have to be well paid!