Multiple external representations (MERs) are central to the practice and learning of science, mathematics and engineering, as the phenomena and entities investigated and controlled in these domains are often not available for perception and action. MERs therefore play a twofold constitutive role in reasoning in these domains. Firstly, MERs stand…

Computer simulations are often considered effective educational tools, since their visual and communicative power enable students to better understand physical systems and phenomena. However, previous studies have found that when students read visual representations some reading difficulties can arise, especially when these are complex or dynamic…

Stored representations of experiences of forces in actions on objects enter into perceptual interpretations and mental simulations of object motions and interactions. In reply to the comment of Hubbard (2012), I clarify some ambiguities in my account (White, 2012) and correct some poor choices of expression. In addition, I address substantive…

In this paper, we report on a project concerned with the role of cognition during problem solving. We specifically explore the categories of mental representations that students work with during problem solving of different representational task formats. The sample, consisting of 19 engineering students taking a calculus-based physics course,…

Two independent lines of research--mental simulations and thought experiments--provide strong arguments about the importance of perceptual modalities for the instructional practices in science education. By situating the use of mental simulations in the framework of thought experiments, this study investigated the nature and the role of mental…

By carefully watching and listening to his students explain how they solved simple physics problems, one college instructor gained insight into how students visualize problems and developed techniques to help students change perspective more easily. Student metacognitive skills, student confidence, and student-teacher communication have also…

This report describes a study that investigated the relationship between mental imagery and problem solving in physics, specifically in kinematics. A distinction is made between visual imagery and spatial imagery used in solving physics problems. The results of this study indicate that while spatial imagery may promote problem solving success, the…

Presents evidence for students' qualitative and quantitative difficulties with apparently simple one-dimensional relative-motion problems, students' spontaneous visualization of relative-motion problems, the visualizations facilitating solution of these problems, and students' memories of the online computer simulation used as a framework for…

This instructional design looks at momentum in physics through railroading, to assist students in developing appropriate mental models that will enable them to solve problems relevant to the process or principle being taught. A PEAnet (process, entity, activity network) relationship enables an instructional visualization (simulation) in which…