The assessment is a complex action, integrated in the learning process that establishes and appreciates school performance, which reflects the objectives and tasks proposed and the efficiency of the teaching activity. The evaluation appears not as a superimposed activity of teaching, but as an integral part of the learning process. Assessment in physical education is an instrument through which the quality of physical education is measured and assessed. The research was conducted in an effort to optimize the educational process to increase efficiency and quality of gymnastics lessons by finding ways to increase the capacity of self- training and selfevaluation. We started from the idea that differentiated instruction designed to adapt the work, in terms of forms of organization and teaching methodologies to its own possibilities, while the ability to understand the interest in moving, working and learning pace is different.