Educational policy ; ASL; American Sign Language ; Svenskt teckenspråk; Swedish Sign Language ; Deaf education; Bicultural education (Deaf education) ; Bilingual education (Deaf education) ; Amtssprache; Official language; National language ; Sprachenpolitik; Language management; Language politics ; Zweisprachigkeit; Bilingualism ; Bilingualism, bimodal; Bimodal bilingualism