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A learning sequence with interactive computational modelling based on Modellus designed for introductory seismology university courses is discussed. The sequence considers earthquake generation mechanics and applies Modellus to determine the evolution of the friction coefficient as given by the rate-and-state friction law governing the frictional instabilities that give rise to earthquakes. Laboratory experiments indicate that the rate-and-state friction law applies not only to rocks but also to some metals, paper, wood, and some plastics. The use of Modellus allows for a parametric study of the equations and for students to create the mathematical models on their own, which ultimately helps them achieve a better understanding of the complex earthquake phenomena. [ABSTRACT FROM AUTHOR]

This study discusses the implementation of a learning sequence with interactive computational modelling activities in the context of introductory marine geophysics university courses. The application of two computer modelling systems, Modellus and Mirone, is considered for the introduction of mathematical physics models of interest in marine geophysics to students having only basic level knowledge of physics and mathematics and no prior knowledge of scientific computation. Modellus is used to compute the theoretical depth of the seafloor predicted using the plate cooling model, while is used to manipulate and display actual bathymetric data in the region of mid-ocean ridges. The combination of both software systems is illustrative and insightful of functionalities suitable to develop other computational modelling activities for marine geophysics as well as for other areas of the geosciences. [ABSTRACT FROM AUTHOR]