Abstract
In the face-to-face mode, the teaching of Mathematics is abstract and for the students of the blended modality it is even more complex because their learning depends on the resources available in the virtual classroom (reading materials, videos, etc.) and of the teacher's support through virtual tutorials (through the forums of consultations and internal messaging) and face-to-face tutoring. This research project proposes a didactic proposal that consists in the use of the GeoGebra software in the blended teaching - learning of Analytical Geometry and Vectors I, of students of the Bachelor of Science Degree in Mathematical Statistics and Production Technology of the “Facultad de Ciencias Exactas y Naturales” of the Universidad Nacional de Asunción. The experiment is carried out during the development of the units of Vectors, Coordinate Systems, Straight Line and Circumference due to the complexity of the concepts presented in said units. After the experiment, the effects of its application are analyzed considering the following dimensions of the teaching-learning process: the level of understanding of the concepts, the ability to solve problems graphically and analytically and the levels of motivation of the students.