MISD moving to two-week intersession calendar No—this does not mean school will be year-round. Students will now have 8 more days in the classroom and those who need it will have 5-10 days on top of that. Author: Sammi Steele Updated: 6:13 PM CST February 23, 2021 MIDLAND, Texas — Changes are coming to the Midland Independent School District’s calendar. Monday night the MISD school board approved a two-week intersession calendar for the 2021-22 school year. No—that does not mean school will be year-round. It just means students will now have 8 more days in the classroom and those who need it will have 5-10 days on top of that.