【教学内容】北师大版二年级下册第七章第二节。【教材分析】《一分有多长》属于小学数学“数与代数”领域。这个学习内容一方面承接了学生在一年级对时间和时钟等的认识;另一方面它又是三年级学生进一步学习年月日的基础。因此本节课在小学低年级学生对时间的认识过程中,有非常重要的承上启下作用。【学情分析】虽然时间单位不像长度、 【Teaching Content】 Beijing Normal University version of the second grade book Chapter VII of the second quarter. 【Textbook Analysis】 “How long one minute” belongs to elementary mathematics “number and algebra ” field. This learning content on the one hand to undertake the students in the first grade on the time and clock awareness; the other hand, it is the third grade students to further study the basis of the date. Therefore, this lesson in the process of junior high school students understanding of the time, there is a very important bearing on the role. Academic Analysis Although the unit of time is not the same length,