Needs assessment (language teaching) ; Fernsehkurs; Rundfunkunterricht; Schulfunk; Educational broadcast ; Schrifterwerb (gesteuerter) ; Schriftspracherwerb (gesteuerter) ; Alphabetisierungsunterricht; Literacy (teaching of) ; Written language instruction ; ASL; American Sign Language ; Sign language in the media; Media (sign language) ; Deaf education; Bicultural education (Deaf education) ; Bilingual education (Deaf education) ; Taubheit; Deafness ; English (American) ; USA (English language in the) ; USA (engl. Sprache in den) ; English in the USA; Englisch in den USA; American English