The book "The Montessori Method. Scientific pedagogy applied to children's education in the "Children's Houses" with supplements and revisions by the author" was written by the outstanding pedagogue Maria Montessori. In this expanded and revised version, the author reveals in detail his unique perspective on children's education and upbringing, offering a system of learning that promotes the all-round development of a small person. Montessori considers the role of the teacher as an observer who helps the child discover his natural abilities and learn to explore the world independently. She considers the importance of free movement, practical exercises and the development of children's independence. The author offers specific methods and materials for creating a favorable environment for a child's learning and development. This book is an important source for teachers, parents and anyone interested in child psychology and upbringing. It will help everyone understand the Montessori philosophy and apply its principles in practical educational work with children.