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These simple conceptual models can be transferred to stochastic models and simulation tools that allow experimentation and observation in silico. Evaluating the simulation results, requiring only tools from high school mathematics, yields, among others, the well-known Ricker model. A conceptual model for simple bimolecular chemical reactions allows the simulation and visualization of the systems behaviour. Again, high school mathematics is sufficient to analyse the simulation results and derive the mass action law for the equilibrium state. For both classes of examples we also develop a purely mathematical approach, using combinatorics. 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For both classes of examples we also develop a purely mathematical approach, using combinatorics. The mathematics used have exceed high school level, but are well within reach of first-year university level.The simulation-tools can be found under the following URL:www.matha.rwth-aachen.de/lehre/lehramtsausbildung/Tools.html"]},{"key":"dc:source","label":"Dc Source","values":["Aachen : Publikationsserver der RWTH Aachen University III, 145 S. : Ill., graph. Darst. (2006). doi:10.18154/RWTH-CONV-123812 = Aachen, Techn. Hochsch., Diss., 2006"]},{"key":"dc:title","label":"Title","values":["Elementare Wege zur mathematischen Modellbildung : Fallbeispiele aus Biowissenschaften und Chemie"]}]}],"canonical_facts":{"dc:contributor":["Walcher, Sebastian"],"dc:coverage":["DE"],"dc:creator":["Gotzen, Bernd"],"dc:date":["2006"],"dc:description":["The role of mathematical models in high school education is often restricted to the application of model equations, or to fitting parameters. 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