I'm not in favor of this for students. Sorry.
By the time you would tack on an extra 1.75 hours a day for school, extending an approximately long 7 hour day to 8.75 hours. Were we live, the bussing time is 50 minutes to school, and 50 minutes from school. That makes the day almost 10.5 hours long. That is before they lift there pencil for the first minute of homework. In our high school, the AVERAGE night of homework is 2 hours, based on a 5-day week. So - if you smoosh that into a 4-day school week, you could assume around 2.5 hours of homework a night. So - the day is 13 hours long. We've not even accounted for any extracurricular activites, or a little time to just chill out.
As for me, I wouldn't mind working m-t for 9 hours, and only working every other Friday. I do not think I could do a 10 hour day on a regular basis. At the end of 9 hours, I'm just toast, and pretty hungry too, with a 45 minute drive home at that point.
Sorry - I didn't realize I landed on the Teen Board. Hope you don't mind my opinions from what my DD (14TO) would say is an old lady. Bye!