The objective of the chapter is the elaboration of a methodological proposal for project-oriented learning at the postgraduate level in order to develop students' mathematical competencies. The methodology of project-oriented learning has as its central element the elaboration of a project based on a problem to propose a solution through a research process. Thus, it recognizes the importance of integrating both participation and collaborative work in the training practices of graduate students to achieve quality training in their learning, which allows a transfer of skills in their work performance. In the same way, the integration of the digital competence, communication, interpersonal, and critical thinking is incorporated.