Content and language integrated learning (CLIL) involves teaching an additional language through the study of a subject, and teaching the subject through the medium of the new language. CLIL approaches to additional language acquisition are widely adopted and broadly successful, though some content-subjects may be better suited than others. The…

The "Teaching Academic Content and Literacy to English Learners in Elementary and Middle School" practice guide was developed by the What Works Clearinghouse™ (WWC) in conjunction with an expert panel to support teachers in providing language instruction. The practice guide provides teachers with guidelines and examples of ways to…

Vocabulary is a building block of understanding, especially in science classrooms where language abilities are mixed. To reduce academic inequalities, approaches to vocabulary instruction need to demonstrate benefits for students across learning contexts. We summarize the results from the first unit, "Earth Systems and Catastrophic…

Science teachers mediate social and academic language in science classrooms through teacher talk and classroom discourse. In multilingual classrooms, ways home and international languages are deployed can affect conceptual learning of science. This study investigates, through Bakhtin's dialogic perspective, multilingual language practices and…

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…