Objective: To determine the implications of the use of open source text in the teaching-learning process of algebraic structures in the initial teacher training of the mathematics specialty in a state university in Peru. Theoretical Framework: The conceptual and epistemic bases of open learning are systematically addressed through interactive texts, as well as the aspects related to the teaching-learning process in university higher education. Method: The study has a mixed approach, pre-experimental design and correlational level, the target population was mathematics education students and a sample of 46 randomly chosen students, data collection is carried out through a diagnostic questionnaire, another multiple alternative and an interview, in the study sample classes are held through the open source book; then the learning achieved at the conceptual level is evaluated. procedural of algebraic structures. Results and Discussion: In this research it is evident that students did not know the open source online text for the study of mathematics, but they have skills in the use of digital technology; but with the use of the digital book they assimilate the concepts, perform demonstrations and solve problems efficiently, raising their level of motivation towards learning. Thus, the relevant use of open source books significantly improves learning and the development of mathematical competence in students. Research Implications: Strengthening of interactive and personalized activities for a comprehensive training of mathematics content mediated by digital technology, reinforcing in a sustained way the culture and mathematical competence of teachers in initial training. Originality/Value: Implementation of an innovative approach in pedagogical practice, through the use of open resources for the assimilation of mathematical concepts and procedures in a dynamic, efficient and effective way. The value of research is evidenced in the praxis of didactic strategies in the context of the digital age, oriented to the knowledge of algebraic structures by mathematics teachers.
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