一、钻研教材,明确目标(一)教材分析本课内容的传统教学是让学生先认识平面图形,再认识立体图形。而在现实生活中,学生接触物体更早、更多,所以,新教材的安排刚好与传统教材相反,即先认识立体图形(安排在第一册),再认识平面图形(安排在第二册),这符合学生现实认知规律。本课通 First, studying textbooks, a clear goal (a) textbook analysis of the contents of the traditional teaching is to allow students to first understand the plane graphics, and then recognize three-dimensional graphics. In real life, students come into contact with objects earlier and more. Therefore, the arrangement of new textbooks is just the opposite of traditional textbooks. First, we know the three-dimensional graphics (arranged in the first volume) and recognize the graphic graphics (arranged in the second volume ), Which is in line with the cognitive reality of students. This lesson pass