教师的教学设计源于教师的教学指导思想,教师的教学指导思想源于教师对教材的理解。我校一位青年教师要参加课堂教学比赛,笔者承担了辅导任务,最终选定了《分数的意义》一课作为参赛课题。经过与执教者多次研究,我们一致认为:“把一个整体平均分用分数表示”是本节课教学的重点 The teaching design of teachers stems from the teaching guiding ideology of teachers. The teaching guiding ideology of teachers originates from the teachers’ comprehension of teaching materials. A young teacher in our school to participate in classroom teaching competition, the author assumed the counseling task, the final selection of the “meaning of the score” as a topic of competition. After many studies with the coaching staff, we agreed that: “The average score points to a whole” is the focus of this lesson teaching