思维总是在一定的问题情境中产生的。教学实践证明:良好的问题情境能激发学生强烈的求知欲望,让学生从被动接受知识向主动获取知识转化,体验探究的乐趣,从而激发学生学习的内驱力,增强学生思维的主动性。一、设置问题,引入新课是思维活动的基础将问题创设在学生熟悉的现实情境中,特别是学生亲身经历的、比较关注的生活原型 Thinking is always generated in certain problem situations. Teaching practice has proved that a good problem situation can stimulate students' strong desire for knowledge and make students transform from passive acceptance of knowledge to active acquisition of knowledge to experience the pleasure of inquiry, so as to stimulate the internal drive of students' learning and enhance students' initiative in thinking. First, set the problem, the introduction of a new lesson is the basis for thinking activities The problem is created in the students familiar with the real situation, especially students experienced, more concerned about the prototype of life