Lehrplan; Syllabus; Curriculum research ; Fremdsprachenunterricht (Grundschule) ; Foreign language teaching (elementary school) ; Modern Languages at Primary School; Kindergarten (Fremdsprachenunterricht) ; Kindergarten (foreign language teaching) ; Vorschule (Fremdsprachenunterricht) ; Nursery school (foreign language teaching) ; Preschool (foreign language teaching) ; Elementary school (foreign language teaching) ; English as a second language; ESL; TESOL ; Mother tongue (teaching of) ; Dialekt (im Unterricht) ; Dialect (in class) ; Language variation (language teaching) ; Lehrplan; Instructional advice ; Sign language ; Kulturvergleich; Language and culture ; Bilingual education