The sense of belonging is a human need that educational systems must foster to achieve student success. In the school setting, this feeling strengthens the bond between members of the institution and motivates families to become more involved with the school, improving the overall school climate. Teachers play a crucial role in promoting this sense of belonging by influencing the connection between families and the educational community. This study aims to understand how teachers from different contexts, one Colombian and the other Spanish, promote families' sense of belonging to the school. To this end, an evaluative, comparative, quantitative, and non-experimental study was conducted using a validated questionnaire applied to a significant sample in both contexts. The results show that, for teachers in both contexts, it is very important for families to feel satisfied with the education their children receive, which is why they strive to build trust in the teaching staff. The sense of belonging is more strongly promoted by teachers in charter schools and those with more years of experience in schools in the Spanish context. In the Colombian context, women are the ones who most actively promote it, thereby perpetuating gender roles. There is a need to provide specific training for teachers to help them develop this capacity in families, as well as to conduct further research to explore the differences that may influence the promotion of a sense of belonging.

This study aims to develop and validate a green behavior instrument based on local potential using structural equation modeling (SEM) with smart partial least squares (SmartPLS). The instrument consists of 40 statements covering five main indicators: environmental maintenance, waste reduction, saving natural resources, sustainable mobility and consumption, and community education. This study addresses a gap in existing research by creating a context-specific tool for assessing green behavior, incorporating local cultural and ecological factors. While prior studies emphasize global sustainability principles, they often overlook the significance of local practices and values, which are essential for effective environmental education. By integrating local potential, this instrument bridges global sustainability goals with regional contexts, enabling meaningful and practical student engagement. The instrument was validated through content validity testing, exploratory and confirmatory factor analyses, and construct validity and reliability testing using SEM with SmartPLS. The results indicate strong content validity, with content validity index (CVI) values ranging from .80 to .90. After analysis, 34 valid items were retained from the initial 40. This study contributes to the literature by developing an instrument that aligns with global sustainability goals while integrating local cultural practices and ecological contexts. It offers insights into how local knowledge enhances sustainability education, providing a holistic framework for assessing green behavior across diverse regions.