Questions and problems of graphic and geometrical preparation of future engineering shots are considered. Characteristics of visualization of geometrical models, the organization of educational process and some methodical aspects of process of training in technical college when studying graphic disciplines are analyses. Need of further introduction of modern computer technologies of design at a reasonable combination of traditional and innovative technologies in professional education is revealing and proved. The example of introduction of a method of model approach based on 3D-technologies of engineering design is given. Authors generalize practical and methodical experience of carrying out classes in these disciplines based on model approach in design of engineering objects.