The challenges inherent in mastering academic content in a new language are many. When it comes to learning science in U.S. high schools, English learners (ELs) confront these on a daily basis. In an effort to document expert language/content instructional strategies, we analyze Mrs. B's sheltered high school biology class, made up of ELs from…

This study examined how middle school students constructed their understanding of the mitosis and meiosis processes at a molecular level through multimedia learning materials presented in different interaction and sensory modality modes. A two (interaction modes: animation/simulation) by two (sensory modality modes: narration/on-screen text)…