Analysis of the effectiveness of teaching materials: a study of the appropriateness of terms to the age and linguistic development of students

The study is relevant because it addresses the need to improve the quality of school textbooks in natural and mathematical subjects. Modern textbooks often contain ambiguous or vague definitions of terms, which makes it difficult for students to understand them and negatively affects the educational process. The problem of systematization and standardization of the conceptual and terminological apparatus in school textbooks has become especially urgent in the conditions of the transition to the updated content of education. The purpose of the study is to assess the appropriateness of terms in textbooks with the age and linguistic requirements of students and to identify the main problems and patterns associated with the use of terminology. The article presents the results of a questionnaire survey among teachers of natural-mathematical subjects, conducts a statistical analysis of the collected data, and develops recommendations to improve the systematization and unification of terminology in textbooks. The study includes a correlation and cluster analysis of the data conducted among teachers. The focus is on identifying problems with terminology in textbooks, understanding the relationship between responses to various questions, and identifying groups with similar perceptions.