The aim of this study is to advance current understanding of the transactional processes that characterize students' sense-making practices when they are confronted with multiple representations of scientific phenomena. Data for the study are derived from a design experiment that involves a technology-rich, inquiry-based sequence of…

This book seeks to improve the way science is taught in the elementary school. It suggests that there are three main contradictions that make it difficult for teachers and students to engage in meaningful activities from which understandings result. The central issues in this book are framed in terms of three dichotomies that lead to tensions…