The following mediation proposal "Strengthening pedagogical practices in transition grade teachers through the intervention of natural material", analyzes the different possibilities offered by the various materials in early childhood educational contexts, with transition grade teachers as mediators. , from the José Celestino Mutis Rural School, enriching the environments that boys inhabit, as well as the multiple possibilities that these offer in integral and meaningful learning. In the same way, it is required to position and substantiate the importance of play in the daily life of the educational community, especially the teachers. For the development of this research, early childhood public policies are taken as a reference and, in particular, it delves into the guiding activities as transversal axes of processes and learning.