We describe the development, design, implementation, and preliminary classroom results of an innovative curriculum, "Focus on Energy," that supports learning about energy in Grades 4-5. The curriculum is grounded in the concepts of science as practice, model-based reasoning, and learning progressions, and builds on students' pre-existing…

Although visual aids are widely considered a valuable source of scaffolding, the nature and active utilization of these aids in current science classrooms are not well understood. This qualitative study explores interaction in the teaching of concepts related to evolution, with a specific focus on a teacher's use of different visual support…

This study examines and compares how developers designed two primary science curricula to support teacher adaptation and enable use of innovative materials at scale. The two cases--"Literacy Science" (a science and literacy curriculum for grades 2-5) and "Science as Inquiry" (a curriculum focused on matter for grades 3-5)--were…

Formative assessment, assessment used to inform subsequent learning, can have a powerful positive impact on student achievement, but little empirical work has been conducted to investigate the role of teachers' knowledge in its practice. This study investigated reciprocal relations between elementary science teachers' formative assessment…

Although young children display various types of interests, little is known regarding the potential impact of these interests on subsequent learning and development. Of particular importance is the question of whether or not children's early interests are instrumental in their later academic achievement. The current study fills this gap in the…

Lack of time for teaching science in traditional classroom placements in the United States has led some science teacher educators to provide practice teaching time for elementary education students in informal science settings. The purposes of this study were to describe the culture of one science methods course taught in conjunction with a K-7…

This study explores how elementary teachers and students use hedges (tentative words such as "maybe") and boosters (expressions of certainty such as "clearly" and "obviously") during science inquiry discussions. Drawing upon semiotic theory, we examine explicit thematic patterns (semantic meaning relations among science concepts) as well as hidden…

Effectively designed science learning environments revolve around students' sensemaking through the use of evidence to ground explanations about natural phenomena. However, little research has been conducted to investigate elementary teachers' learning to promote students' sensemaking in elementary (K-5) classrooms. The purpose of this…

The close association between science and masculinity has been widely discussed, yet few studies have focused on boys' negotiation with, and participation in, school science. This paper seeks to trouble monolithic notions of the link between science and masculinity, arguing that the "ideal science student" is a classed, racialized, and…

In the United States, student achievement results from mathematics and reading are always included in high-stakes accountability calculations. Because of this, it has been argued that other subjects have been minimized due to assessment and accountability policies. In this study, the accountability practices of states were differentiated into…

Understanding what children know is paramount to planning effective science instruction; however, in any classroom, the students hold a variety of ideas. Representing these differences in ways that also acknowledge the common trends among students might facilitate the process of differentiation. To exemplify one such possible process of…

This quasi-experimental and pre/posttest study was designed to examine whether fourth-grade students who engaged in collaboratively writing letters to 11th-grade students performed better on tests of conceptual understanding of a unit on force and motion than students who did not. The participants included 835 fourth-grade students and 416…

This study investigated children's judgments of the epistemic status of justifications for causal claims. Twenty-six children (14 boys, 12 girls) between the ages of 8 and 10 were asked to help two story characters choose the "best reason" for believing a claim. The reasons included appeals to an authority, to a plausible causal mechanism, or to…

The aim of this study was to assess whether and how a sustained instructional focus on argumentation might improve children's understanding and application of key epistemic criteria for scientific arguments. These criteria include the articulation of clear, coherent causal claims, and the explicit justification of such claims with appropriate…

In this paper, we examined data collected as part of a 5-year project designed to foster reform-based urban science teaching through teachers' communities of inquiry. Drawing upon a distributed leadership framework, we analyzed teacher "talk" during professional learning community (PLC) meetings. This analysis yielded five elements:…