Content analysis of the topic of cellular respiration in high school biology textbooks of countries of Iran and Turkey based on William Roman method

The purpose of this study was to investigate the content of cellular respiration in second-grade biology textbooks in two countries of Iran and Turkey based on William Roman method. The purpose of this research is applied and in terms of research method is based on the content analysis method which has been done in relation to the cellular respiration of Biology of Iran and Turkey. The results of the study show that the Chapter 5 of the Iranian Biology Book and the text of the fourth chapter of the Turkish Book of Biology in the field of cellular respiration is presented inactive. The results also show that pictures of the fifth chapter of the Iranian Biology Book and the fourth chapter of the Turkish Biology Book are inactive. As for the questions at the end of Chapter Four of the Turkish Biology Book, these questions are also active. The results of the research on the activities of the fifth chapter of the Iranian Biological Book and the fourth chapter of the Turkish Biological Book that showed that these activities were presented inactive.