Validation of the Environmental Ethics Curriculum Model Based on Social Constructivism in Secondary School

The purpose of this study is to validate the model of environmental ethics curriculum based on social constructivism in secondary school. This is an applied research with a descriptive survey method. The statistical population of the study is all secondary school teachers in Mazandaran province with 11024 people (5692 men and 5332 women). The research sample includes 360 secondary school teachers who were selected by multi-stage relative cluster sampling with Cochran's formula. As a data collection tool, a researcher-made social constructivism questionnaire with 23 items on a five-point Likert scale was used. Content validity was used to determine the validity of the questionnaires and composite reliability was used to determine the reliability of the questionnaires, which had a suitable and acceptable status. Exploratory and confirmatory factor analysis were used to analyze the data with SPSS and PLS software. The results showed that the objective components, content, teaching-learning activities, and evaluation are effective in explaining the model of environmental ethics curriculum based on social constructivism and the model had a good fit. Environmental ethics curriculum based on social constructivism allows students to be actively involved; they also focus on thinking and understanding rather than just memorizing and the model makes them perform better. Using this approach, basic learning activities can take place in the real-world context (nature) so students' constructivism is stimulated.