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教学设想:1.渗透数形结合的思想,使得纯数学的概念、性质具体化、形象化。2.让学生在一系列活动中学习、探索和研究,增强学习的内驱力。教学目标:1.在实践活动中认识奇数和偶数。2.探索并掌握数加减的奇偶性,并能运用它解释生活中的一些简单问题,获得较广泛的数学活动经验。教学准备:10×10方格纸、剪刀、游戏转盘、多媒体课件等。
Teaching ideas: 1. Penetration of the idea of combining numbers, making the concept of pure mathematics, the nature of specific, visualization. 2. Let students learn, explore and research in a series of activities to enhance the driving force of learning. Teaching Objectives: 1. Recognize odd and even numbers in practical activities. 2. Explore and master the odd and even numbers addition and subtraction, and can use it to explain some simple questions in life, access to a wider range of mathematical activities experience. Teaching Preparation: 10 × 10 graph paper, scissors, game turntable, multimedia courseware and so on.