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【教学内容】苏教版数学四年级下册第28页—30页。【教学目标】1.经历数数的过程,体验数的发展。通过操作实践活动,初步理解整百数和几百几十几的含义,能认、读、写这些数,能识别各数位上数字表示的实际意义。2.培养用数学的观念看周围事物的意识,培养与同学合作交流的态度和习惯。【教学重难点】理解整百数和几百几十几的含义,能认、读、写这些数,能识别各数位上数字表示的实际意义。【教学过程】
【Teaching content】 Sujiao version of the fourth grade of the next volume page 28 -30 pages. 【Teaching Objectives】 1. Through the process of counting, the development of the number of experience. Through practical activities, we can understand the meanings of the whole hundred and hundreds of dozens of dozens of words, and recognize, read and write these numbers to identify the practical significance of the digital representation of each digit. 2. Training to use the concept of mathematics to see the awareness of the surrounding things, to cultivate the attitude and habits of exchange and exchange with classmates. Difficult to teach】 【Understand the whole hundreds and hundreds of dozens of meaning, to recognize, read and write these numbers, to identify the numerical meaning of each digit. 【Teaching process】