Abstract
ProVis—Probability Visualized—is a tool for constructing tree diagrams and unit squares. Tree diagrams are often used in mathematics education to structure multi-stage random experiments. Unit squares illustrate dependencies between two-dimensional characteristics and their values. The intention of this project is to foster the use of digital tree diagrams and unit squares in the classroom. ProVis exempts the students from operating and gives them opportunity to model, interpret, and analyse complex statistical situations. For the development of ProVis, seven requirements based on didactic considerations are proposed, which a statistical education software should fulfil. The metamodel of the method underlying ProVis is presented. Also the related functionalities are outlined. The realization of the metamodel and the implementation of the involved concepts appear to be complex in construction as well as in interdependence. Nevertheless, it was the intention of the developers to realize a software, which is quite easy to handle. For this reason, a convenient interface is offered. The features of ProVis are demonstrated by discussing a case study in a recent context. ProVis is implemented on the metamodeling platform ADOxx. It is available for free on the OMiLAB-Austria homepage.
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Döller, V., Götz, S. (2022). Tree Diagrams and Unit Squares 4.0: Digitizing Stochastic Classes with the Didactic Modeling Tool ProVis . In: Karagiannis, D., Lee, M., Hinkelmann, K., Utz, W. (eds) Domain-Specific Conceptual Modeling. Springer, Cham. https://doi.org/10.1007/978-3-030-93547-4_21
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