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一、教材简析本课是在学生已经认识了线段、射线、直线和角等概念的基础上教学的。教学中让学生在具体的生活情景中,充分感知平面上两条直线的平行和相交关系。在学生初步感知了生活中的平行现象后,又让学生利用获得的初步认识找出更多的实例丰富认识;最后在操作活动中反复体验,逐步获得对平行线的清晰认识。二、教学目标1.使学生联系实际生活情景,体验直线的相交与不相交关系,认识两条直线互相平行,能判断两条直线的平行关系。
First, the textbook analysis This lesson is based on the concept of students have been familiar with the line, ray, line and angle based on the concept of teaching. Teaching allows students to fully understand the parallel and intersecting relationship of two straight lines in the plane in specific life situations. After the students initially perceived the parallel phenomenon in life, they also let the students use the acquired preliminary understanding to find out more examples and enrich their understanding. Finally, they repeatedly experience in operational activities and gradually gain a clear understanding of the parallel lines. Second, the teaching objectives 1 to enable students to contact the actual life scenarios, experience the intersection of straight lines and disjoint relations, understanding two straight lines parallel to each other, to determine the parallel relationship between two straight lines.