Summary: In their paper the authors deal with the vital issues of creation and application of electronic teaching materials for the teaching of natural science subjects. They describe an experimental examination of qualitative impacts of these aids on education. The authors present a part of the research results which they obtained in a major research focused on possibilities to influence students\rq attitudes and approaches to particular subjects, mainly the less favourite ones. To be more specific, they deal with possibilities to eliminate students\rq very negative attitude to physics. Their target group were 17-19 aged students and the means applied to change the attitudes of this group to physics were specially designed multimedia education materials and interactive flash animations $Principles of Geometry Optics$ covering basic topics from geometry optics.