Increasing the length of the school day is a no go for me. If you were to do that, you need to increase the salaries of the teachers and also it would result in higher utilities costs. I do not believe that local municipalities can afford that at the moment.
And for that matter, you're unlikely to raise utility bills in the schools since schools are often active during the afternoons/early evenings with extracurricular activities as it is. It's not as if we're pushing to keep school in session until 10 o clock.
Not true. Air conditioning/heating is turned off in classrooms that aren't being used for afterschool activities.
As a high school student, I can confirm this.