It is the purpose of this part to support the efforts of local educational agencies, Indian tribes and organizations, postsecondary institutions, and other entities—

(1) to meet the unique educational and culturally related academic needs of Indian students, so that such students can meet the challenging State academic standards;

(2) to ensure that Indian students gain knowledge and understanding of Native communities, languages, tribal histories, traditions, and cultures; and

(3) to ensure that teachers, principals, other school leaders, and other staff who serve Indian students have the ability to provide culturally appropriate and effective instruction and supports to such students.