Explaining phenomena associated with a system involves describing a system's structure and articulating the process through which the system's structure changes over time. This paper defines geo-sequential reasoning in the context of plate tectonics and uses it to analyse how students explain the geological processes that occur along convergent…

In this study, we examined the ways in which two middle school science teachers elicited and were responsive to students' initial science ideas for explaining an anchoring phenomenon while teaching the same model-based learning unit focused on plate tectonics. Data sources included student models, classroom video, and classroom artifacts. Our…