Maria Montessori has moved past the traditional way of teaching and dedicated her life to making and developing a pedagogy that enables all children to study and explore at their own pace using concrete materials which leads them to freedom, self-education, self-evaluation, completeness, satisfaction, motivation and gives them the desire to learn. How to arrange the classroom, pick the most suitable materials, how should a Montessori teacher act, which qualities should he possess, are all the important questions that need to be answered if one would like to have a well-organized and quality class that is driven by the principles of Montessori pedagogy. Immense attention is given to different materials which can be used in everyday class of public schools and enable pupils to comprehend abstract and distant concepts using concrete examples. The goal of this research was to examine pupils’ reactions towards given materials and methods that were following the principles of Montessori pedagogy, and were adapted to regular classes of Croatian language, mathematics and nature and society. Forty-seven students participated in this research across three first grades in elementary school in Zagreb. After held classes, designed and organized following the principles of Montessori pedagogy using the materials that were made following the criteria that Maria Montessori set, pupils were given a questionnaire about their imprints on held class. It has been concluded that the pupils which were a part of this research liked the alternative way of studying where they learn and revise on their own without much interference and help of the teacher with the possibility to evaluate the correctness of their answers after task completion. Pupils were pleased with conducted classes and graded them with flying colours. Preferably, these types of classes in a greater quantity would be a welcome change to spark pupils’ interest and desire for education for their own sake.