The aim of this thesis is to present how motor skills are developed through natural forms of movement. The work focuses on younger school age children. In the proper development and growth of students, the key element is the natural form of movement that is instinctively applied. Students apply biotic motor skills from birth and parents, followed by teachers and institutions dealing with upbringing and education, play a very important role in executing these skills. Biotic motor skills are very simple structures and it is extremely important that students learn the correct performance techniques and properly apply them. It is imperative that the teacher assigns students natural forms of movement from simpler to more complex and then combines them with various props, obstacles and devices. In Physical Education classes, attention should be paid to the developmental period of the student and the classes should be adjusted according to their sensitive phase. Recognizing the students' developmental period is the basis for development and improvement of their motor skills. This thesis describes motor skills (coordination, strength, power, precision, balance, endurance, speed and mobility) and offers various tests to assess their motor skills.