摘要：Students’ knowledge is the main resource for stimulating the development of each country. The results of international and national comparative studies in science show a tendency of a decrease of the level of students’ knowledge. The problem draws attention to the need to promote organization in teaching and learning and the use of progressive methodological approaches. The developed method, called the TETRA-method, is directed to the formation of connections among various phenomena, it was tested to ensure that students (grade 8-10) achieve stable knowledge, improve understanding and promote the students’ learning achievements if the method is used in learning chemistry. The students’ achievements were compared on different topics during the learning process. Obtained results of the research allow us to conclude that the use of the TETRA-method gives an option to raise the students’ knowledge level more frequently one level above the previous. The knowledge stability test showed that students’ knowledge becomes stable. Students’ learning achievements have a tendency to enhance by using the developed method.
