**6. Advantages of 3D software systems**

In the theory of mathematical education, which deals with spatial and geometric imagination development, several experts and researchers are united in their opinion that this type of imagination is poorly developed in some students [10]. To help these students in the process of learning mathematics, in particular in the discipline of stereometry, there is a need to create software applications. These applications should enable teachers and students to visualize studied geometric figures, explore geometric relationships and concepts, and make and test assumptions in a dynamic learning environment by manipulating the studied objects, such as: constructing, dragging, rotating, and others, to train to be more effective, more accessible and enjoyable. The classical method of teaching with chalk, ruler, and compass ensures the understanding of geometric drawing in stereometry, the construction being done in the imagination but in a flat structure. To achieve better results in training in this discipline, some software applications have been created in recent years, such as CABRI 3D, GEOGEBRA, DALEST and others, the use of which opens up new opportunities for the educational process.
