A learning path has been developed on system dynamical graphical modelling, integrated into the Dutch lower secondary physics curriculum. As part of the developmental research for this learning path, students' understanding of the relation structures shown in the diagrams of graphical system dynamics based models has been investigated. One of our…

Illustrates the use of auto- and biographical materials as part of a research process concerned with problematic aspects of learning science. Draws on an extended study of graphing among university students and research scientists, and on the autobiography and interview data from one of the authors to point out some of the sources of difficulties…