We identify language and discourse skills in 54-month-old Spanish-English bilingual preschoolers and their English-speaking monolingual peers, using multiple measures. Forty-one Spanish-English bilingual and 25 English monolingual children, all US born, viewed an eight-minute wordless video. The bilingual children recounted the story once in…

The purpose of this study is to analyse how vocabulary depth develops in the early years of primary school and to ascertain the effect it has on the quality of the texts produced by the students. A total of 332 Spanish students from the first to fourth grades participated by doing a synonyms/antonyms task to evaluate their vocabulary depth, along…

The use of the students' first language (L1) in the foreign language class (FL) is a common but controversial issue that has received little attention. This might be more relevant in the case of Content and Language Integrated Learning (CLIL), since, under CLIL approaches, students need to acquire content through an FL that they have not mastered…

In this study we document how a mathematical idea, shared by a student, changes the development of the class discussion. Our work characterizes the flexible and open dynamics in mathematics instruction that a teacher adopts to give her students control of their own mathematical ideas. Our work argues that this flexibility is necessary for teachers…