This study tracked pre-service science teachers (PSTs) over 3 years as they completed required science courses (e.g., chemistry, biology and science and technology laboratory courses). The PSTs' use of argument, representations, and reasoning were examined (1) to determine the coherence within and between these and (2) examine the relationship…

The present article discusses the design and impact of computer-based visualization tools for supporting student learning and representational competence in science. Specifically, learning outcomes and student representation use are compared between eight secondary classrooms utilizing The Connected Chemistry Curriculum and eight secondary…

The national science standards, along with prominent researchers, call for increased focus on scientific argumentation in the classroom. Over the past decade, researchers have developed sophisticated online science learning environments to support these opportunities for scientific argumentation. Assessing the quality of dialogic argumentation,…