The present study analysed the contributions of a B-learning training experience to the reduction of school conflicts in classrooms by encouraging cognitive-behavioural anger management techniques. Using a mixed concurrent nested dominant approach, research took place from 2015 to 2017 with 43 Colombian children between the ages of 8 and 14. Data was collected using a pre-test/post-test, checklists, observation logs, and a focus group. The findings showed satisfactory performance in the execution of the indicated techniques; these results were verified by Wilcoxon's Z test, showing a significant increase in the measurement of internal wrath control with both self-applied and hetero-applied instruments (-2,841 with sign. 0.004 in the hetero-applied instrument and -1,699 with sign. 0.089 in the STAXI-NA). Finally, an analysis of the qualitative results provides suggestions for improving the technical and pedagogical aspects.