Environmental education is crucial for building a sustainable society; however, students in metropolitan areas often lack spaces for active learning and experiencing the environment directly. To solve this problem, this study explores the use of portable rooftop greenhouses (RTGs) in environmental education, utilizing the open-source Wikihouse system. The hypothesis suggests that these RTGs will actively engage students and enhance their environmental awareness. According to findings, students in the experimental group showed significantly higher levels of environmental awareness, attitude and thinking compared to those in the control group. These findings indicate how portable greenhouses can be used as creative tools for delivering engaging and innovative types of environmental education. Future implementations of this project at various schools and across scales will help assess its long-term effects on students' ecological consciousness and attitudes.