情境创设中其基本功能和作用表现在两个方面:一是通过特定的情境,激活学生的问题意识,形成基于问题的学习任务,从而展开提出问题、分析问题、解决问题的学习活动;二是通过特定的情境,使问题与学生原有认知结构中的经验发生联系,激活现有的经验去“同化”或“顺应”学习活动中的 Situation creation in its basic functions and functions in two aspects: First, through a specific situation, activate the students awareness of the problem, the formation of the task of learning based on the problem, so as to start the question, analyze the problem and solve the problem of learning activities; second is Through specific situations, the problem is related to the students’ experience in the original cognitive structure, and the existing experience is activated to “assimilate” or “adapt” to the learning activities