Education faces barriers all over the world, which sometimes makes it difficult to look after children's rights and their individual development. Hence, society is clamoring for new practices, and different approaches are emerging, Montessori among them. Despite the fact that this approach was developed to attend to the poor strata, nowadays it is basically promoted by elitist sectors, though it can be perfectly applied as an education system for all children, regardless of their socio-economic and cultural backgrounds. This study analyzes the bases of Montessori pedagogy in a school from a low-to-middle-income country (LMIC), Burkina Faso, and another school in a high-income country (HIC), Spain. The study takes into account children, family, school environment and teacher training all of which contribute to children's development.