Selected Aspects of Visualization in Education of Functions

Abstract

The aspect of visualization plays an important role in the calculus teaching. The notion of the function is basic notion at the lower secondary level and in the teacher training of future mathematics teachers. The notion of the graph of the function and his graphical and visual representation is important at upper secondary level and university level. If the student draws the graph of the function, then the work with graphical representation of the function can help to make his knowledge about notions such continuity, derivative more deep. The development of information and communication technologies (ICT) gives the possibility to use different tools (for example educational software) as a supporting aspect for mathematics education with better understanding. We would like to show some examples with the help of GeoGebra for motivational analysis teaching.