Previous research has shown that the knowledge structure (KS) complexity of a first language (L1) under certain conditions can strongly influence the KS complexity established in a second language (L2), and then this more complex L2 KS reciprocally influences L2 text comprehension. This present experimental investigation seeks to identify the…

Academic language is critical for English learners (ELs) to succeed in the science classroom. This study analyzed the instructional practices centered around academic language taking place in eight, fifth-grade classrooms during a grant-funded project. Observational data collected through a classroom observation instrument were analyzed to…

In recent years, the issue of using bilingual education has come to the public's attention. A widespread belief is that students in bilingual classes achieve a higher competence in the language, but that they lag behind in subject-specific knowledge when compared to fellow students in traditional (i.e. monolingual) classroom settings.…

The purpose of this study was to compare and describe 8 fifth-grade classrooms by their teachers pedagogy during a quasiexperimental, longitudinal, and field-based project focused on increasing English language learners' (ELLs') achievement in science and language. The larger study found statistically significant and positive intervention effects…

The present study investigated the effectiveness of the Glogster and cooperative learning as differentiation models of English as a second/foreign language (ESL/EFL) and Science projects. The study employed a mixed method study design whereby questionnaire and openended interview were incorporated to elicit the required data. Eighteen teachers…

This paper examines whether students involved in CLIL are able to learn content through the medium of L2 and simultaneously exhibit significant gains in L2 vocabulary knowledge. Two experiments were set up in two public primary schools. Two groups of 6th grade students participated in each experiment. The first group was taught three 80-minute…

In this article we report findings from research through the Center for Research on the Educational Achievement and Teaching of English Language Learners (CREATE), a National Research and Development Center. In our study we examined the efficacy of a model of instruction for English learners, the Sheltered Instruction Observation Protocol (SIOP)…