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案例概述课标中对第二学段4—6年级综合与实践的内容标准是这样写的:结合实际情境,体验发现和提出问题、分析和解决问题的过程。通过应用和反思,进一步理解所用的知识和方法,了解所学知识间的联系,获得数学活动经验。教材将植树问题分为3个例题:两端都植、两端不植和环形植树(只一端植)。为了让学生建立系列完整的植树问题数学模型,本节课只研究一条线段上的三种植树情形,环形植树的情形放在下一课时由学生自主探究。
Case Outline The content standard for the integration and practice of Grades 4-6 in the second semester in the course standard is written in the following way: The process of finding and presenting the problem, analyzing and solving the problem is combined with the actual situation. Through the application and reflection, to further understand the knowledge and methods used to understand the connection between the learned knowledge, access to mathematical activity experience. Textbook will be divided into three examples of tree planting problems: both ends of the plant, the two ends are not planted and annular tree planting (only one plant). In order to enable students to establish a complete mathematical model of tree planting problems, this course only deals with three tree planting situations on a single line. The situation of ring tree planting is explored by students on their next lesson.