论文部分内容阅读
在五年级下册“分数的意义”教学后,经常会出现这样的填空题:3米长的绳子平均分成7段,每段占全长的(),每段长()米。意在考查学生对分数意义的理解以及能否用分数表示计算结果的能力。对于此类题目,我们分别收集了近两年4个不同时期的数据:五年级第二学期期中、期末、六年级第一学期期末以及七年级入学第一周的学情调研抽测,错误率分别是51.7%、34.5%、36.2%和38%。可以发现,虽然较初学时错误率降低不少,
In the fifth grade of the next book, “the meaning of the score” teaching, there will often be such fill in the blank: 3 meters long rope average divided into 7 sections, each of the total length (), each length () meters. The purpose is to examine students’ understanding of the meaning of the scores and the ability to use the scores to express the results. For these topics, we have collected data from four different periods in recent two years respectively: the fifth-grade second-term semester, the end of the first semester, the first semester of the sixth grade and the first week of the seventh grade, Are 51.7%, 34.5%, 36.2% and 38%. It can be found that although the error rate is much lower than that of the first time,