Blended Experimentation with DGS

TitelBlended Experimentation with DGS
Publication TypeConference Paper
Year of Publication2009
AuthorsKortenkamp, U., & Richter-Gebert J.
Conference NameProceedings of CADGME 2009

Experimentation is an important element of science teaching. Students should experience real-world phenomena, and support or disprove their hypotheses about the world by setting up appropriate situations, conducting the experiments, gathering data and drawing conclusions. Unfortunately, many experiments are unsuitable for school teaching out of various reasons. They might be too dangerous, too expensive, too complex, too unreliable, or they take too much time to complete. Using simulation software, many experiments can be replaced by safer, cheaper, easier, more reliable or sped-up virtual counterparts. Such simulations range from showing videos of repeated runs of the real experiment, together with interaction facilities, to mathematical simulations using numerical solutions of partial differential equations. However, there is a pedagogical drawback of the simulation approach: The connection to the real world situation is (at least partially) lost. This might harm both the motivation of the students and their belief in the conclusions. In this paper we describe the approach of blended experimentation, where simulations and the real world are connected via sensors and actors. The sensors are able to influence the simulation, while the actors can change the real world. We show first implementations and examples using Dynamic Geometry Software and other Mathematical Software as simulation environments.

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