As with fifth and sixth grades, the seventh grade classroom depends on whether the school is an elementary school or middle school. In many Kindergarten through eighth grade schools in Philadelphia, seventh graders have two different teachers rather than only one as with sixth graders. One teacher concentrates on literacy and social studies, while the other teacher takes on mathematics and science. These students cycle between two different classrooms. In contrast, students in middle schools may have a homeroom teacher, but they cycle through a number of different classrooms and teachers for each subject. Their school experiences are much different from those of students who only travel between two classrooms.