2. Martynenko B.V. Hemophobia and the realities of life. // Chemistry at school. – M., 1992.

1. Askarov I.R., Tukhtaboev N.Kh., Gopirov K. Chemistry. Textbook for 8th grade. - Т .: Yangiyyul polygraph service publishing house, 2019.

3. Trigubchak I.V. Organization of the teaching process at the propaedeutic stage for 7th grade students. Dis…. Cand. ped. sciences. - M., 2003 .

4. Kendivan D.S., Namy A.L. Chemistry problems with practical content. // Education in the modern school. -Moscow, 2006. - No. 3.

5. Eshchanov E.U. Methodology for the improvement and organization of educational activities of students in organic chemistry (on the example of independent assignments): Dis .... Cand. ped. sciences. - T .: 2005 .

6. Begmatov U.E. Theoretical and methodological foundations of the connection between lessons and extracurricular activities in secondary schools. Diss .... Cand. ped. sciences. – T., 2004 .

7. Omonov Kh.T. Using local opportunities in chemical experiments. Local capabilities and experiences. // Vocational education. – T., 2004. - No. 5.

8. Zhabborov A. Food products and chemistry. // Public education. – T., 1992. - No. 2.

9. Askarov I.R., Dumanov B.M. The use of assignments with practical content for the development of students' learning activities. // Materials of the scientific-practical conference "Actual problems of school chemistry education" dedicated to the 42nd International Mendeleev Olympiad. – T., 2008 .