Summer camp is a supervised program for children or teenagers conducted during the summer months in some countries. Children and adolescents who attend summer camp are known as campers. This is not to be confused with summer school, which is usually a required academic curriculum for a student to make up work not accomplished during the academic year, whereas summer camps can include academic work, but is not a requirement for graduation. There are also religiously affiliated summer camps, such as those run by Christian groups and various denominations of Judaism.