Pupils' language; Students' language ; Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Syntactic development; Morphological development; Morphologie (Spracherwerb) ; Syntax (Spracherwerb) ; Grammatical development ; Child language ; Child language (conversational analysis) ; Kindersprache (pragm.) ; Conversational analysis (child language) ; Wortbedeutung (Spracherwerb) ; Bedeutungsentwicklung; Semantic development ; Spanish ; Latin America (Spanish language in) ; Lateinamerika (span. Sprache in) ; Spanish in Latin America
