Exceptional contribution to understanding a child and educational approach towards the same in the history of reform pedagogy belongs to Maria Montessori. Pedagogy that nurtures children's personality, indirectly encourages interests for different areas, and learning turns into a game, undoubtedly encourages a new vision of the child who carries a vision of the childhood in himself. Pre-school period and its characteristics and also a role of educator in a development of a child are topics of this thesis in which are explained developmental stages of a child and principals in Montessori pedagogy and also a role of a Montessori educator in an overall child development. In the research part of this thesis the main objective was to explore the role of a Montessori educator and Montessori pedagogy in an overall child development and also diversity in understanding the role of a Montessori educator and Montessori pedagogy. 24 educators participated in the study, 12 of them are Montessori educators with work experience in regular program and also in Montessori program and the rest 12 educators with work experience in regular program. The results are showing significant statistical differences in the assessment of Montessori educators and educators in the regular program according to assessments of certain elements of Montessori pedagogy. Likewise, Montessori educators are giving greater assessment of elements of Montessori pedagogy than educators in the regular programs and it is related to the work towards the Montessori Method.