Because most of the students in the elementary and high school students often go up to the provincial school or boarding school, away from housing. Research in elementary children, so it is an appropriate option.
Since most of the students at the elementary level. When the class is to study the provincial school or school district from residents. Research in Primary education is the right choice.
Because most students in elementary school. And when the students often go to boarding schools, provincial or boarding school district far from the housing.