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《比的应用》是北师大版小学数学六年级上册内容,按比例分配问题是比的一种应用,即把一个数量按照一定的比进行分配,是“平均分”问题的发展,它在实际生活工作中有广泛的应用。本课的重点是把解决问题的多种方法进行整合,发现这些方法的共同之处,沟通整合比与整数除法、分数应用之间的关系。本班学生有小组合作习惯,可以通过小组交流和全班交流的方式学习新知。
“The ratio of application” is the sixth grade of Beijing Normal University version of elementary school mathematics content, the proportion of the allocation problem is an application of ratio, that is, a number of distribution according to a certain ratio is “average points ” the development of the problem, It has a wide range of applications in real life work. The focus of this lesson is to integrate multiple approaches to problem solving and discover the commonalities of these approaches, the relationship between communication integration and integer division, and fractional application. Students in this class have a group practice of learning new knowledge through group communication and class exchange.