Promoting Environmental Education Using a Multilingual Environment: Manufacturing Soap from Waste Oil

China is beset by environmental problems. This study focused on addressing China's environmental problems by using a language grid to provide a Japanese environmental education program, "manufacturing soap from waste oil," to Chinese students at home and evaluating their practice. The teaching and work experiments comprised observations of the knowledge-transfer process under a multilingual environment and the students 'work during experimental activities, respectively. The results show that a better training effect was obtained by the family groups who performed both teaching and work experiments than by the student groups who performed the teaching experiment only.