The purpose was to evaluate the effectiveness of the pedagogical program “School Ecoaction 3R”, based on the 3Rs to improve the process followed by the solid waste of the students of the educational institution “Ramiro Villaverde Lazo” in the city of Huancayo. The population was 299 students. The sample was made up of 169 randomly selected students from 3rd, 4th and 5th grade. The pedagogical program was applied to this group. The methodology was applied, explanatory level and pre-experimental design with pre- and post-test. A checklist was used to measure the management of solid waste and its dimensions prevention or minimization, valuation or recovery and final disposal. It was found that there are differences between the results before and after the application of the sessions. 90.5% of the students in the post-test were graded at an adequate level, while in the post-test no student had that grade. On the side of the inferential test, the rank test yielded a p-value of 0.00 indicating that the differences between the pre- and post-test are significant. From this it is concluded that the application of the pedagogical program “School Ecoaction 3R” was effective in improving the solid waste management of students in the school.
Betzani et al. (2026) studied this question.