著名特级教师于漪曾说过:“课的第一锤要敲在学生的心灵上,激发起他们思维的火花,或像磁石一样把学生牢牢地吸引住。”由此可见,课堂教学要讲究导入的艺术。一个精彩的导入,既使学生情趣盎然,又可激起强烈的求知欲望。在小学数学课堂教学中,一节完整的新授课,应包括导入新课、新授课和巩固练习这三个基本部分。其中新授课是主体,导 Yu Yi, a famous teacher said: “The first hammer of a lesson should be knocked on the students' mind, sparking the spark of their thinking, or attracting students like a magnet.” Thus, Teaching should pay attention to the imported art. A wonderful introduction, even if students have fun, but also provoke a strong desire for knowledge. In elementary mathematics classroom teaching, a complete new course should include the introduction of new courses, new teaching and consolidation exercises of these three basic parts. The new lectures is the main guide