Comparison and Analysis of the Content of the New with Old Version Senior High School Chemistry Textbook, based on Environmental Education

The aim of this study is to analyze and compare the content of the chemistry textbook for the senior high school in 1399-98 school year in terms of attention to environmental education, which were examined by deductive coding method. To accreditation the results, two coders were used to accreditation the results, and the agreement between the coders was 90%. The results showed that the categories of environmental protection education are in the text with a frequency of 70, question 14, task 8 and image 18. The categories of environmental education are cognitive (91%), attitude (9%) and skill based (0%). According to the results, although the improvement in environmental protection education in the "10th and 12th Chemistry Text Books" is better than in previous years, this trend has not continued in the eleventh textbook. Therefore, the principle of diversity and continuity in environmental categories and different areas of teaching-learning has not been given much attention in textbooks.