Applied dialectology concerns the study and use of dialects in educational settings and issues related to language and society. There is an ongoing debate about what constitutes American English in different communities and how standard English can be effectively taught in schools. Approaches to teaching standard English include replacing vernacular dialects, balancing standard English and dialects depending on the situation, and promoting dialect rights by addressing ethnocentrism and prejudice. Successful teaching of standard English depends on factors like clear goals, understanding dialect diversity, and knowledge of how a second dialect is acquired.