Competences in the generation of geometrical constructions using analog and/or interactive tools are important as part of the competence of methods taught in general mathematical instruction. Adequate three-dimensional constructions were impracticable except as mental constructions. Now, however, the tool Cabri 3D, which was developed primarily for school… (More)
Die Teile sind mehr als das Ganze.
The development of the ability to solve problems is task of general education schools in the framework of the cultivation of the ability to learn. Part of this ability is systematic planning of solutions of problems. Using the example of complex word problems, it is shown how planning of solutions can be motivated, implemented, and executed by means of… (More)