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[教学目标]1.利用知识的迁移规律,让学生在自主探究、合作交流中理解和掌握小数的性质。2.能利用小数的性质化简,能把整数或小数改写成指定数位的小数。3.通过对小数性质的猜想与验证活动,让学生进一步体验数学与日常生活的密切联系,体验数学问题的探究性和挑战性,从而激发学习数学的兴趣,提高比较、辨析、概括的能力。
[Teaching Objectives] 1. The use of knowledge transfer rules, so that students in their own exploration, cooperation and exchange to understand and grasp the nature of decimals. 2. Can use the nature of the decimal to simplify, can integer or decimal rewrite as the specified number of decimal places. Through the conjecture and verification of the decimal nature, students can further experience the close connection between mathematics and daily life and explore the inquiry and challenge of mathematical problems, so as to stimulate the interest of learning mathematics and improve the ability of comparison, discrimination and generalization.