Roberto Carlos Torres Peña, Jhon Jairo Feria Diaz, Boris A. Medina Salgado. THE DIDACTIC UNIT TO PROMOTE THE DEVELOPMENT OF METRIC SPATIAL THINKING IN SIXTH-GRADE STUDENTS. J Popl Ther Clin Pharmacol. 2023;30(12):545-552. doi:10.53555/jptcp.v30i12.6620