School is a place that is familiar to everyone. Let's find out what American students do in school.     An official dance party is held about twice a year in high schools in the United States. When the final football game is over for the season there is a homecoming party. Sometimes, students select a king from among the football players, and a queen from among the girls. Every student can attend and have fun with the help of their teachers. Sometimes, students, called bookworms, to the surprise of the other students, come to the party in a beautiful dress.     The most exciting party that students can go to would have to be a dance party. Students attend it in dresses similar to those of Hollywood stars and the atmosphere is comparable to an Oscar Award party. Since such a party is for seniors, students usually stay up the night trying to enjoy their last year in high school.     In American schools, instead of the teachers going to different rooms, students have their own class schedules   and go to different classrooms. When a student is away from school, they must have an explanation for being away along with the signature  of a parent. The signed paper is then handed in to the school office. High school drop outs and students being expelled   are not that uncommon in the States. High absences without excuses are one of the reasons why students are expelled from school. American students also enjoy a number of activities out of school like cheerleading  , student government and a host of different sports. What is this passage mainly about?
The organizing of dance parties. Homecoming party. How to ask for a leave. School life in America.