The article focuses on the way modern technologies are used in the education of mathematics, biology and chemistry. Namely, it deals with a multimedia classroom (dataprojector, PC, visualiser, audio, interactive board) and a ''laptop mobile classroom'' (laptops with software such as Mathematica, Statistica, Cabri Geometry II plus, Cabri 3D etc.).
Some illustrations are shown of a concrete use of the technologies in the courses of mathematics and its education, biology and chemistry. The goal is to acquaint future teachers with technologies not only in the courses of subject education but also in their own learning of subjects.