Theories of how first and second languages, (written and spoken) are acquired, the importance, of first-language development and its, relationship to the acquisition of other, languages, and the relationship of language to, cognitive development. Understanding of these, issues is used to promote a school environment, that honors diverse perspectives and maximizes, language learning potential and ensures respect, for communities whose languages or varieties of, English differ from standard school English., Required for the Reading Interventionist and ESOL, endorsements. The initial course in the Reading, Interventionist Endorsement sequence and, recommended preparation for other language arts, offerings.