Immersive technologies and, in particular, augmented reality (AR) are rapidly changing the sphere of education, especially in the field of science, technology, engineering, arts and mathematics (STEAM). High-quality professional training of a future mathematics teacher who is able to meet the challenges that permeate all sides, the realities of the globalizing information society, presupposes reliance on a highly effective learning environment. The purpose of the research is to transform the traditional learning environment for training future mathematics teachers with the use of the GeoGebra AR dynamic mathematics system, the in-troduction of cloud technologies into the educational process. The educational potential of GeoGebra AR in the system of professional training of future math-ematics teachers is analyzed in the paper. Effective and practical tools for teaching mathematics based on GeoGebra AR using interactive models and videos for mixed and distance learning of students are provided. The advantages of the Ge-oGebra AR dynamic mathematics system are highlighted. The use of new tech-nologies for the creation of didactic innovative resources that improve the process of teaching and learning mathematics is presented on the example of an educa-tional and methodological task, the purpose of which is to create didactic material on the topic "Sections of polyhedra". While solving it, future teachers of mathe-matics should develop the following constituent elements: video materials; test tasks for self-control; dynamic models of sections of polyhedra; video instruc-tions for constructing sections of polyhedra and for solving basic problems in the GeoGebra AR system. The article highlights the main characteristics of the pro-posed Learning Environment for training future mathematics teachers using the GeoGebra AR dynamic mathematics system: interdisciplinarity, polyprofession-alism, dynamism, multicomponent.