Children's idiom comprehension is an important aspect of language development. Idioms have both literal and figurative meanings, and there are often great differences between literal meaning and figurative meaning, which brings great difficulties to children's accurate understanding of idioms. As a kind of underlying language ability,…

This paper aims to advance our understanding of how children's use of vocabulary in writing changes as they progress through their school careers. It examines the extent to which a model of lexical sophistication as use of low-frequency, register-appropriate words adequately captures development in vocabulary use across the course of compulsory…