Body Paragraph 1:the extra time will be perfect for the kids who need help bringing up their grade, to help study more instead of doing it at home. They could be having a hard time trying to bring up their grade. It could also help the teachers bring up more topics in a day of learning.
Body Paragraph 2: Having a hour and a half of extra school time can be bad for the ones who play sports. They would have to move their sport practice time hours behind and they get home even later. For the ones who don't play sports