Instructional scaffolds may promote science learning, particularly for topics that are controversial. Scaffolding may also need to be autonomy supportive, particularly for adolescents, and designed to facilitate scientific discourse and agency. The purpose of the present study was to investigate differences in middle school students' discourse and…

A number of studies have now examined the development of children's appreciation for verbal irony, typically by testing children's comprehension of the ironic speaker's belief and intent. This article examines a topic that has received much less attention: children's ability to produce irony in context-appropriate ways. The study presents 7- to…

This study examines the use of narrative and paradigmatic modes of explanation in large group discussions about science in preschool classrooms. Participants comprised students and teachers in 29 preschool classrooms, 19 of which used the ScienceStart! curriculum, a hands-on, inquiry approach to teaching science with young children. Analyses of…

In this article, we articulate the critical differences between memory-based processing and explanation-based processing. We suggest that the most important claim of memory-based text processing is that the automatic processes that function with respect to text processing are all applications of ordinary memory processes. This claim contrasts with…

This article investigates the effect of 2 language-in-use factors on the introduction and maintenance of referents in instructive discourse. These factors, implemented as conditions in an instructive production task, were the assumed visual identity for the reader of the objects or referents to be referred to in the instructions (visually same vs.…

This article considers how children and young people conceptualize and construct different types of texts. The initial parts of narrative and expository texts written by grade-schoolers, adolescents, and adults were analyzed, on the assumption that the opening to a piece of discourse serves as a window on the text as a whole. Analysis was…

This study investigates cultural and communication medium effects on conversational argumentation in a decision-making context. Chinese and U.S. participants worked in pairs on two decision-making tasks via face-to-face (FtF) and instant messaging (IM). The analyses showed that Chinese participants tended to engage in potentially more complex…