Erstspracherwerb; First language acquisition; Ontogenese; Language acquisition ; Metalinguistic awareness (in children) ; Phonics (teaching of) ; Phonologische Bewusstheit (bei Kindern) ; Phonological awareness (in children) ; Focus on form (language teaching) ; Sprachbewusstsein (bei Kindern) ; Linguistic awareness (in children) ; Metaphor (children's comprehension of) ; Theory of metaphor ; Meaning, derived; Bedeutung, übertragene; Metaphor (figurative language) ; Italian