It is declared that, for the benefit of the people of the State, the increase of their commerce, welfare, and prosperity, and the improvement of their health and living conditions, it is essential that this and future generations of youth be given the full opportunity to learn and to develop their intellectual and mental capacities; that it is essential that school districts of this State be provided with adequate educational facilities and appropriate additional means to assist the youth in achieving the required levels of learning and development of their intellectual and mental capacities; and that it is the purpose of this chapter to provide a measure of assistance to enable school districts in this State to provide the facilities and structures which are needed to accomplish the purposes of this chapter, all to the public benefit and good, to the extent and manner provided in this chapter.