一、新课伊始,激趣设疑。课堂伊始设疑,是最佳的新课导入方法之一。一节课的头几分钟是学生注意力最容易集中,求知欲和好奇心最强烈的时候,授课开始,教师如果能抓住契机,创造疑境,设置悬念,可吸引学生的注意力,激发学生学习兴趣和求知欲,有“疑”才有思,有“思”才启“新”。这样,使学生积极投入,自觉参与到课堂的全程活动中。二、在知识关键处设疑。在知识的关键处设疑,让学生处于“山穷水尽疑无路”的境地,然后巧指导,学生拨便“柳暗花明”。三、重点难点,分层设疑,激活创新思维。在知识的重难点处教师故设悬念,有针对性提出问题,引导学生对重点和难点的关注,从而充分 First, the beginning of the new lesson, interested in supposing doubt. It is one of the best ways to introduce new lessons into the classroom. The first few minutes of a class are when students are most likely to concentrate, curiosity and curiosity are the strongest. When the teacher begins to teach, if teachers can seize the opportunity to create suspense and suspense, they can attract students’ attention and stimulate Students interested in learning and curiosity, there is “doubt ” only thinking, “thinking ” only Kai “new ”. In this way, students actively participate in, consciously participate in the classroom activities. Second, the suspicion of knowledge at the key. At the crucial point of knowledge, students should be placed in a position where there is no solution to the problem, and the students are urged to give directions. Third, the key difficulties, layered doubts, activate innovative thinking. Teachers in the heavy and difficult points of knowledge suspense, targeted to raise questions and guide students to focus on the difficulties and difficulties, so as to fully