Investigating the situation of environmental education components in the text books of the first secondary school with emphasis on the statement of the second step of the revolution

A healthy environment is a divine blessing in which the well-being of all beings is considered. And God Almighty has made its proper use the guarantor of the survival of beings, including man, and the provider of his physical and mental health. Training is a cost-effective investment in the development process, especially sustainable development and to create change in order to prevent environmental degradation is one of the accelerating factors. In this research to achieve the answers to the questions of the synthesis research method and Using the theoretical foundations of research and content analysis of the first year of high school with Shannon entropy method and analysis of upstream documents (Fundamental Transformation Document of Education, National Curriculum Document and Twenty-Year Vision Document, Fifth Five-Year Development Plan Law of the Islamic Republic of Iran and Sixth Development Plan of the Islamic Republic of Iran and Statement of the Second Step of the Revolution) Quantitative and qualitative content analysis has been used. Findings from the multiplicity of components have shown that the components of environmental education in primary school textbooks do not have a normal distribution while some components have received more attention than others.