The development of computer science, statistics and other technological fields, give us more opportunities to improve the process of evaluation of degree of knowledge and achievements in a learning process of our students. More and more we are relying on the computer software to guide us in the grading process. An improved way of grading can help overcome some limitations of the educational process, that have caused problems, and had as a consequence a lower degree of success. With the combination of old, traditional way of evaluation of students knowledge and success, and the application of "fuzzy logic" and "the theory of fuzzy sets", "the method of ponderous areas", and other new computer and scientific technologies, we are getting a complex formula , that is also, friendly to constant changes, depending on developments in the schooling process. The new grading system is very user friendly, and can be applied in primary-middle schools as well as in high schools. It takes into account all the students activities and achievements, raises the quality of a teacher's performance and can be updated with new computer technologies. This model is, also, a great support program in grading of students involved in "distance learning" systems. (Contains 5 figures.)