By diagnosing the schemes or plans of education, and the problems existed in educating process and activities, formative evaluation is providing back-coupling information for the on-going educating activities so as to improve the evaluation of the activities. 形成性评价(formativeevaluation)是通过诊断教育方案或计划、教育过程与活动中存在的问题,为正在进行的教育活动提供反馈信息,以提高实践中正在进行的教育活动质量的评价。