Geogebra — A complex digital tool for highly effective math and science teaching

Dynamic geometrical systems bring new tools for visualization and exploring mathematical ideas, structures and relations in teaching of mathematics. Among this type of systems the Geogebra is coming to the fore these days, thanks to its extensive options. In the methodical textbooks for teachers created within Slovak national project “Modernization of education at primary and secondary schools” Geogebra has an important position among used mathematical projects. This article introduces the main and the newest possibilities of the software environment Geogebra which joins dynamical geometry, work with algebraic expressions, graphs, spreadsheet, and the CAS environment into an unique unit that can be usable in teaching from primary school to university.