2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/137165In this work we suggest a simple mathematical model for the dynamics of the population of children and adolescents without problematic behavior (criminal activities etc.). This model represents a typical population growth equation but with time dependent (linearly decreasing) population growth coefficient. Given equation admits definition of the half-life time of the non-problematic children behavior as well as a criterion for estimation of the social regulation of the children behavior.two pages, no figuresPopulations and Evolutiontext