Computational models are increasingly being used in K-12 science classrooms to engage students in developing and testing explanations of phenomena. However, research has only begun to consider whether integrating computational models into science instruction could be particularly beneficial to students from diverse backgrounds, including a…

Formative assessment during the course of instruction is an essential practice for supporting all students, including English learners (ELs), in the science classroom. It typically consists of three steps: (1) The teacher elicits information about student learning through various methods; (2) The teacher interprets (or makes sense of) that…

While there is consensus in the science education community on the importance of crosscutting concepts (CCCs) for all students, teachers have been given limited guidance on how to integrate CCCs into science instruction. In this article, the authors propose that teachers view CCCs as resources that students use in their everyday lives to make…

As computational models are becoming more widely used with the release of "A Framework for K-12 Science Education" (NRC 2012) and the "Next Generation Science Standards" ("NGSS"; NGSS Lead States 2013), these models are reshaping the way science is practiced in increasingly diverse classrooms. For students classified…

Traditionally, content assessments have been carried out through written language. However, the latest standards in U.S. K-12 education expect all students, including English learners (ELs), to demonstrate their content learning using multiple modalities. This study examined the performance of fifth-grade students at varying levels of English…

The "Next Generation Science Standards" ("NGSS") call for a high level of classroom discourse (Lee, Quinn, and Valdés 2013). To engage all students, including English learners (ELs), in this form of discourse, educators have turned to talk moves (e.g., "Say more about that"), defined as general-purpose tools for…

Dynamic assessment (DA) seeks to understand learners' abilities that are still developing by embedding mediation (i.e., contingent forms of assistance) into the assessment process. To date, DA studies have been carried out primarily in contexts focused on language learning. However, in content classrooms (e.g., science, math), English learners…

The purpose of this study is to present a conceptual framework that integrates science and language learning for all students, including English learners (ELs). This framework is grounded in the mutually supportive nature of science instructional shifts, spurred by "A Framework for K-12 Science Education" (National Research Council,…

Research on TESOL materials development has focused primarily on instructional materials for contexts in which students are learning English separate from academic content (e.g., science, mathematics). This research could benefit from expansion given the increasing number of contexts in which students are learning content and English language…

Using data collected from two multiyear teacher professional development projects employing randomized control trials, this study describes the development and validation of a paper-based test of elementary teachers' science content knowledge (SCK). Evidence of construct validity is presented, including evidence on internal structural…