The aim of this study was determining the effectiveness of the Edu CoSpaces platform in developing knowledge, attitudes, and environmental aesthetic sense among grade sixth female students in the Sultanate of Oman, and to verify this; The study adopted the quasi-experimental approach, each group including 32 female students . The researcher prepared three research materials and four tools, which were the Edu CoSpaces platform, the study unit, and a guide for the teacher on the steps of teaching using the platform. As for the tools, they were the environmental knowledge test, the environmental attitudes scale, the environmental aesthetic sense scale, and the attitudes scale toward the platform. Edu CoSpaces, and the validity of the materials and tools was verified by presenting them to 16 specialized arbitrators, and the stability of all study tools was verified using statistical treatments; The reliability coefficient value for the environmental knowledge test was 0.68 according to Cronbach's alpha coefficient, and for environmental attitudes scale was 0.88, while the environmental aesthetic sense scale was 0.65. the effectiveness of the Edu CoSpaces platform in developing environmental knowledge and attitudes, and the absence of statistically significant differences in the measure of environmental aesthetic sense between the performance averages of the two study groups, and the presence of statistically significant differences in the measure of attitudes towards the Edu CoSpaces platform in favor of the experimental group. Based on the findings of this study, it is recommended that it is necessary to include social studies curricula with very clear shapes, diagrams, and pictures of the natural phenomena to be learned. The studies on the effectiveness of the augmented virtual reality platform Edu CoSpaces in developing green economy skills.