While CLIL programmes have been extensively researched for their impact on L2 learning outcomes, the relationship between young learners' L2 proficiency and subject knowledge has received less attention. This study aimed to address this research gap by examining the science content knowledge of two cohorts of Grade 5 students (n = 100) from two…

English learner (EL) children (i.e., children learning English as a second language) constitute one of the fastest growing, yet disproportionately underachieving, segments of the U.S. public-school population. A main difficulty that ELs face at school is learning English and content-area knowledge in tandem. Low levels of English proficiency may…

Bilingual education in the United States basically involves English language learners (ELLs) in mainstream classes and students who are learning an additional language in a foreign language immersion (FLI) program. Although academic vocabulary instruction for ELLs has attracted increasing attention in the past two decades (e.g., McQuillan, 2019;…

In the mid-1980s, the federal government designated the community in which this study was conducted as a relocation site for Southeast Asian refugees. The local school district received more than 300 students in grades k-8 from Cambodia and Laos. The students had limited formal schooling, had lived in refugee camps for 2-5 years, and less than 5%…

This protocol was used to conduct a research review to help inform the recommendations for the What Works Clearinghouse (WWC) updated English learner practice guide, "Teaching Academic Content and Literacy to English Learners in Elementary and Middle School." The research review involved the following steps: (1) The research staff…