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【教材分析】四年级下学期数学广角中关于在一条线段上的“植树问题”存在不同的情形,教材通过3个例题的教学,让学生初步体会解决植树问题的思想方法,以及这种方法在解决实际问题中的应用,同时也引导学生在解决实际问题中探索规律,初步培养学生构建数学模型的能力。【教学目标】1.通过动手操作的实践探究活动,发现在一条线段上点数与段数之间的关系,让学生在做数学的过程中经历现实问题到构建数学模型的
Textbook analysis Fourth grade next semester in mathematics wide-angle on a line segment “tree planting problem ” there are different situations, teaching materials through the teaching of three cases, so that students initially understand the thinking and methods to solve the problem of planting trees, and this Method in solving practical problems, but also guide students to explore the law in solving practical problems, the initial training of students to build mathematical ability. Teaching Objectives 1. Through hands-on practical exploration activities, found in a line segment on the relationship between the number of points and segments, so that students in the process of doing mathematics to experience real problems to build mathematical models