Abstract
The mathematical skills developed in primary school impact the child's interest in this area of knowledge, as well as the student's academic performance. The evidence of gaps in this regard and accentuated in less favored socioeconomic contexts, motivated this research that provides a proposal for project-based learning based on the premises of active teaching methodologies. With the objective of contributing to the strengthening of these competencies in sixth grade students, school project xxx is presented, which is framed in the Boss and Larmer model for gold standard projects. Going through the holistic spiral of evaluative research, when designing the strategy, we go through the exploratory, descriptive, comparative, analytical, explanatory, predictive, projective, interactive, confirmatory and evaluative stages. With a quasi-experimental design, the results of pre- and post-evaluative tests were statistically analyzed, applied to two groups of students: One control and one experimental (n=32), verifying the validity of the methodological proposal, replicable in other school contexts.