Background: There is a need to find ways of productively engaging K-12 students with engineering design. I investigate a new class of physical models, referred to as Improvable Models, as scaffolds for helping middle school students productively engage in engineering design practices. Purpose/Hypothesis: The purpose of this study is to answer two…

This study explores the effectiveness of a workshop and accompanying conceptual framework designed to help middle school students become better participants in group work. The framework is designated BRAVE (build on ideas, risk tentative thoughts, ask good questions, value other perspectives, and use evidence). The framework is based on research…

Although research has come to recognize the importance of studying classroom-based student-teacher discourse in science, the emphasis remains largely on teachers' abilities to ask questions and provide students with feedback, or on students' abilities to ask questions or engage in argumentative discourse. Consequently, little research has focused…