A way to teach people something by having them teach others. The premise is that this increase the retention of the information by having each group/person reframe the ideas in their own language.
References
https://www.researchgate.net/figure/Learn-to-teach-to-learn-model-L2T2L_fig1_337573856 https://nikkimantyla.files.wordpress.com/2011/07/learning-pyramid.jpg