据研究表明,学生最佳的学习状态仅能保持二十五分钟,这就对教师提出更高的要求,要求教师充分利用各种教学手段,巧妙处理好知识难点、重点与学生课堂最佳状态的吻合。政治课堂教学受时间和空间的约束,就教学容量来说,总是有限的,这就需要政治教师巧设情境,在有限的时空内激发学 According to the research, students 'best learning status can only last for twenty-five minutes, which puts forward higher requirements on teachers and requires teachers to make full use of various teaching methods to skillfully deal with the difficult points of knowledge and focus on the best students' Match. Political classroom teaching by the constraints of time and space, in terms of teaching capacity, is always limited, which requires political teachers to set the scene in a limited time and excitement