Did you go to two schools with the same length of day but different number of students per teacher? As that would be the way to work out the difference between

Did you go to two schools with the same length of day but different number of students per teacher? As that would be the way to work out the difference between the two. I would imagine an 8 hour day where there are fewer students to teachers be an easier scenario to study in than one whereby you study with many peers per teacher, which I would expect causes far more social and mental stresses and focuses. I also imagine those with fewer students per teacher, have time to focus on better teaching methods and more holistic and healthy approaches, whilst teaching to many would require a different mode of teaching. The point I am getting at is that in the same settings of peer to teacher ratio, there is likely a sweet spot whereby you hit the maximum amount you can take in per day, before learning anymore is really not worth it. Likewise the longer you stay beyond that point, you are not going to be resting as much and you would end up borrowing from tomorrow's lessons (burn out). Based on that, it seems highly unlikely that the ideal amount of time at school for say a 7 year old or a teen, is the exact same hours as a working adult day. However I doubt these things will change. Just look at all the studies that show teens have a physiological need for a later waking pattern, yet we have made no attempts to change the start of their school day to be optimised to give them the best chance each day.