This paper examines five problems in decision making and actions taken to help alleviate water pollution. 1. Consideres how to approarch the environmented issues. The main thinking on the subject was epitomized by NAKAHAR-A's 3 approach. 2. Explain various decision-making styles and methods of these issues 3. Brings up the issue from a contrastive study of syllabus planning and 1, 2. 4. Key words of the decision-making process were as follows:Personal and external factors; Alternative actions; Ways to deal with risk and uncertainty; Ways to handle tension and conflict; Identify and evaluate information. 5. Investigates the effectiveness of 「The Leartning Contents of " The Synthetic Instruction: Water"」