Sorry this is so late...
The school day should not be lengthened. Although the school day has attempted to last as long as possible, in order to cram as much information into students as the teachers can, more information at once can actually be redundant rather than helpful. In addition the overworking of students is already a problem, and it would drastically worsen if we were to lengthen the school day. Plus, homework already exists in a fashion that many students still do schoolwork even after school has ended— meaning they already do more work per day than is technically counted. Memorization works best in slow progress, with information being given over periods of time. Attempting to stuff as much as possible into a single school day will result in confusion and frustration for both students and teachers, as well as a decline in mental health of already worrisome teens due to lack of sleep, overworking, and too many hours spent studying. Students, on average, already have a school day which leaves them with just a few hours of free time; and most of this free time is taken up by “necessary” things like homework, eating, chores, and sleeping, meaning that the time given to students to do things they enjoy and relax is extremely limited as is. Lengthening the day would only worsen this. Not to mention teens should be getting many hours of sleep which is currently restricted by school, with many teens not getting enough sleep because of how early they have to wake up and how little time they have in the remaining day— this isn’t even factoring in time spent studying at night. All of this combined means that, with school as it currently is, teens are being deprived of sleep and are placed in unhealthy conditions while being expected to do more work than they get credit for (and the teachers, on the opposite end, being expected to teach and grade more than they get credit for). With so many problems already present, lengthening the school day would do nothing more than harm the mental well-being of students and staff, as well as depriving them of sleep and lowering their ability to learn.