Some teachers stay to clean the classroom, grade homework, or do follow-up assignments. Not all teachers go out after school. “They often spend time in the evenings and weekends grading papers and preparing lessons.” If they have a writing assignment or test on Friday, the teacher should grade the assignments over the weekend. Many teachers have to grade a lot of homework because they haven't done it for a long time or because they left students with a lot of homework during the week. “Many preschool and elementary school teachers typically work 8 weeks straight, are on break for 1 week before starting a new school session, and also have a 5-week mid-winter break.” When students go away during spring or winter break, a teacher takes those days off