Evidence-based practice (language teaching) ; Bilingual method ; Instruction (medium of) ; Medium of instruction ; ASL; American Sign Language ; Deaf education; Bicultural education (Deaf education) ; Bilingual education (Deaf education) ; Classroom communication; Instructional communication ; Bilingualism, bimodal; Bimodal bilingualism ; Alternation (biling.) ; Language shift (biling.) ; Sprachwechsel (biling.) ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English