Purpose, findings, and policy a. The states party to this agreement, desiring by common action to improve their respective school systems by utilizing the teacher or other professional educational person wherever educated, declare that it is the policy of each of them, on the basis of cooperation with one another, to take advantage of the preparation and experience of such persons wherever gained, thereby serving the best interest of society, of education, and of the teaching profession. It is the purpose of this agreement to provide for the development and execution of such programs of cooperation as will facilitate the movement of teachers and other professional educational personnel among the states party to it, and to authorize specific interstate educational personnel contracts to achieve that end.