Because animations can depict situational dynamics explicitly, they have the potential to help learners build coherent, high-quality mental models of complex change processes. Further, "interactive" animations provide opportunities for learners to deal with available information selectively and so avoid excessive processing demands. However, to be…

The terms dynamic representation and animation are often used as if they are synonymous, but in this paper we argue that there are multiple ways to represent phenomena that change over time. Time-persistent representations show a range of values over time. Time-implicit representations also show a range of values but not the specific times when…