“名数改写”易错原因分析及教学建议曲靖师范附一小王丽端名数改写，是生产生活中的需要，是学习复名数和小数互相改写的基础。然而，学生在名数改写中错误较多。究其原因，主要有以下几点：１．在实际生活中，学生对一些计量单位直接感知少，难以形成计量单位实际大小的... “Rewriting the name of” error-prone analysis and teaching suggestions Qujing Normal attached a little Wang Li-side name rewriting, is the need in production and life, learning re-name and decimal rewrite each other based. However, students make more mistakes in rewriting names. The reason, mainly in the following points: 1. In real life, students have less direct perception of some units of measurement and can hardly form the actual unit of measurement unit.