Understanding reaction mechanisms is integral to success in organic chemistry; however, prior research suggests that learners struggle with recognizing the importance of underlying implicit features in reaction mechanisms. Because of this struggle, understanding how learners' reason about reaction mechanisms and developing assessments to elicit…

Argument writing is challenging for elementary students. Previous experimental research has focused on scaffolding rhetorical goals, leaving content goals relatively unexplored. In a randomized experiment, 73 students in grades 5, 6, and 7 wrote persuasive texts about difficult-to-classify vertebrates. Each student received one of three sets of…

This paper reports on a study of students' conceptual sensemaking with science diagrams within a computer-based learning environment aimed at supporting collaborative learning. Through the microanalysis of students' interactions in a project about energy and heat transfer, we demonstrate "how" representations become productive social and cognitive…

In this study, we analyzed the quality of students' written scientific explanations found in notebooks and explored the link between the quality of the explanations and students' learning. We propose an approach to systematically analyzing and scoring the quality of students' explanations based on three components: claim, evidence to support it,…

This study aims to add to the growing research related to the implementation of non-traditional writing tasks in classrooms to encourage science literacy. A secondary reanalysis methodology was employed to review student interviews collected as a part of several individual studies during a ten year research program. This method established an…

Describes examining seventh- and eighth-grade students' writing for both function and audience as they relate to learning and conceptual development. Includes examples illustrating how audience influenced students' understanding of concepts in a science class. (HTH)

Describes a fictional science classroom/learning experience in which the teacher expresses mild surprise and pleasure at the way the children tend to steer the learning process themselves when they have a relevant purpose in mind. Argues that learning involves being able to express what one knows. (KEH)

Explanation as a genre may support children's reasoning and understanding particularly effectively. In this study, 20 fourth graders were given the task of explaining the effects of a pollutant on an ecosystem to third graders. Before writing, they completed a commercially developed science unit, instruction in reading and writing an explanation,…

Prepared as part of a series applying recent research in oral and written communication instruction to classroom practice, this booklet describes five situations where writing and speaking experiences are used as a way to learn subject matter. The first section of the booklet describes the learning that takes place in the home, where writing and…