“引”即引入,是授新课前的准备,它与导言,引言相比,其性质,目的是相同的,但内容更丰富,形式更多样化。“引”是小学教学课堂教学结构的第一个环节,也是教师在新的教学内容或活动开始时,引导学生进入学习的行为方式,把学生带到一个特定的学习方向上来。现代教育的心理学研究表明:精彩的课堂 “Introduction” is the introduction before the new class. Compared with the preface and the introduction, the introduction and introduction have the same nature and purpose, but they are more rich in content and diversified in form. “Lead ” is the first part of the teaching structure of primary school classroom teaching, but also teachers in the new teaching content or activities at the beginning, to guide students into learning behavior, to bring students to a specific learning direction. Psychological studies of modern education show: wonderful classroom