Integrating life education and Visual Tree Assessment (VTA) into a mobile application named “Tree Portal”, this innovation is a technology-assisted educational tool. It has been developed to equip citizens with botanical and ecological knowledge and to raise environmental awareness on the urban forest and tree preservation. The application provides a systematic framework of 100 visible symptoms of tree-growth issues depicted graphically as the discernible body language of trees. Users are trained to assess tree health and performance with the VTA technique. Geo-referenced data gathered from these observations will be uploaded to the server database for further analysis. Ultimately, this invention aims to cultivate users’ appreciation of life and the intimate connection with nature and other species through an environmental perspective of life education.