设疑可根据学生认识发展规律,知识的内在联系,创设问题情境,启动学生思维,培养学生参与意识。笔者在教学实践中主要从五个环节上设疑,培养学生的参与意识,取得了良好的教学效果。一、在课程导入时设疑一堂好课首先要有一个好的开头,以引导学生进入情境,正如好戏开头,鼓乐齐鸣,? The doubts can be based on students’ understanding of the law of development, the inherent connection of knowledge, the creation of problem situations, the initiation of student thinking, and the cultivation of students’ awareness of participation. In the teaching practice, the author mainly set suspicions from five aspects, cultivated students’ awareness of participation and achieved good teaching results. First, set a doubt on a good lesson when the course is introduced. First, there must be a good beginning to guide the students into the situation. Just like the opening of the good show, drumming and singing,?