This study was intended to display the role of eco-school program (Adiwiyata) towards environtmental literacy (EL) of high school students by analyzing, (a) EL of students in Adiwiyata and non-Adiwiyata high schools, and (b) EL of students in Grade X and XI, Adiwiya and non-Adiwiyata high schools in Malang-East Java, Indonesia. The survey involved 275 students. The respondents were from four state high school i.e. SMAN 1, SMAN 3, SMAN 4, and SMAN 7. Data were taken via MSELS questionnaire that was modified and filled online. Aspects of EL include ecological knowledge, environmental affect, cognitive skills, and behavior. The results of multivariate analysis showed that the level of students’ EL was significantly influenced by school type and grade. However, the interaction both of them had no significant effect on their EL. Univariate results on school type factor informed that significant differences occured in all aspects of EL, where the lower identified level of students in Adiwiyata schools compared to Non-Adiwiyata was only in the environmental affect. On the other hand, the significant influence of grade level only occurred in cognitive skills aspect. Broadly speaking, all data analyzes concluded that the application of the Adiwiyata program was able to bring a positive impact on the level of students’ EL. There was also a tendency that the higher the student's grade, the better their EL level.

This study seeks to develop a learning method based on local wisdom that is developed to support the learning process. One of the pearls of wisdom used in developing learning methods is the traditional games of the Sundanese people, namely the Bebentengan game. This study aims to see the improvement of student learning outcomes by implementing the Bebentengan learning method. The mix-method, quantitative data and qualitative data are described based on the research findings. It involves as many as 298 students at various levels; Elementary School (ES), Junior High School (JHS), and Senior High School (SHS) and nine teachers. Data analysis using ANCOVA. The results showed that there was no significant increase in learning outcomes at all levels (sig. 0.020 <α). There is a significant difference in the learning of students who get Sundanese local wisdom-based learning methods at each level (ES, JHS and SHS). Based on the comparison between ES and JHS (Sig = 0.079> α), can be concluded that the learning method is not effective to be applied in junior high schools. Then, between ES and SHS (Sig = 0.006 < α) so it can be concluded that the learning method is effective to be applied in elementary schools. The last comparison is between JHS and JHS or vice versa (Sig = 0.079> 0.314> α), can be concluded that the learning method is not effective to be applied in SHS. Therefore, this method is most effective at the primary level. We find that this learning method can improve student learning outcomes at all levels. Learning methods using local wisdom are effective enough to improve student learning outcomes. Thus, this method can be implemented more broadly. Still, it needs to be developed in the future. It does not rule out the possibility of learning methods based on local wisdom can be combined with technological advances.