Green Corners is fifth phase of Tehran Monoxide Project. The project aims at educating pupils aged from 5 to 18 about caring and maintaining indoor plants. Our reason for doing Green Corners project in schools is lack of interest in plants, these important symbols of life, in the lives of the new generations. In order to address this issue, we had to take a look at the educational system and school books. A brief investigation reveals that little importance is given to plants and green spaces in education while schools are indeed a good starting point for emphasizing the importance of these. Educating our pupils about the basics of caring for indoor plants can lead to more attention to plants and trees.