The policy of suicide prevention and gatekeeper program are forming currently by the health organization in Taiwan. Not only are the public playing the role of gatekeepers to indentify suicide risk, clinical nurses should also know how to assess suicide risk. So far the investigators have few courses about suicide risk assessment, and the investigators need further research to develop a complete content of suicide evaluation, which can be used in clinical training and nursing education. The investigators can provide a learning environment based on interactive group, and this can help improve critical thinking and problem solving skills. Also, using case vignette to design the discussion course (case-based curriculum) can help the learners understand integrated knowledge content based on clinical situation; its advantages include to promote the motivation of active learning, to strengthen the analysis skills, to enhance decision making ability, or to cultivate learners o how to correctly evaluate the effects on patients from social culture perspectives. At the present, nursing education in Taiwan is focusing on critical thinging, problem-solving, and decision making, and the use of group discussion can help reach the above teaching goals.