Comparison of educational results in Astronomy for high school students in St. Petersburg

During five academic years from 2018 to 2024, students in grades 10 and 11 of three different High Schools in St. Petersburg studied the subject of Astronomy as part of the school curriculum under the guidance of the author of this study. Teaching was conducted in 15 classes, each of which had at least 20 students. During this time, several approaches to educational process were used, but the methodology of academic achievements in this subject was carried out in the most identical way. This paper describes the approaches to educational process during the specified time, describes the methodology for measuring academic achievements. Based on this methodology, measurable educational results were obtained in the subject of Astronomy among students, an analysis of these results was carried out, features were identified, and a justification for differences in academic achievements was proposed.