问题情境是指一个人自己觉察到的一种“有目的但不知如何达到”的心理困境。对于学生来说,问题---情境是一种当学生接触到学习内容与其原有认知水平不和谐、不平衡时产生的对疑难问题急需解决的心理状态。问题与情境是两个不同的概念,但问题---情境的产生必须依赖于问题。只有有了问题,学生才会产生心理困境,也就有了解决问题的动机,这就需要教师去精心设置一些情境。把问题情境引入生物教学可为生 The problem situation refers to one’s own perceived a “purposeful but I do not know how to achieve ” psychological predicament. For students, the problem --- the situation is a kind of psychological state when the students are exposed to the learning content and its original level of awareness is not harmonious, unbalanced arising from the urgent need to solve difficult problems. Problems and situations are two different concepts, but the problem - the emergence of context must depend on the problem. Only if there is a problem, students will have psychological difficulties, and there will be motivation to solve the problem, which requires teachers to carefully set some situations. Introducing problem situations into biology teaching can make a living