美国亚利桑那大学梅克教授,根据问题解决的情境,设计了封闭性、次封闭性、半开放性、开放性、全开放性的五种问题类型,越是封闭性的问题,其答案越是固定唯一;越是开放性的问题,其答案越是多元或不确定。这五种问题类型能体现学生掌握知识、形成能力的事实水平、概括水平、理论水平、应用水平的四种水平层次。这种在逻辑和层次上具有连续性的问题系列,就是"问题连 According to the situation of problem solving, Professor Meek of the University of Arizona designs a closed, semi-closed, semi-open, open and open five types of questions. The more closed the question is, the more the answer is fixed The only; the more open the question, the more diverse or uncertain its answer. The five types of questions can reflect the students grasp the knowledge, ability to form the level of factual, general level, theoretical level, level of application of the four levels. This series of questions that are logically and hierarchically continuous is the question