由于知识、生活经验不足,小学生头脑中的很多前概念要么是残缺不全的,要么是错误的,这就需要教师在课堂教学过程中予以纠正,而纠错特别需要讲究方法。不久前听的一节课——《茎越长越高》,让我对此颇有感触。生:老师,我知道凤仙花的茎有什么作用。凤仙花的叶子上有许多小孔(毛孔),下雨或者浇水 Due to lack of knowledge and life experience, many of the preconceptions in the minds of primary school students are either incomplete or wrong, which requires teachers to correct them during the course of classroom teaching. In particular, error correction requires special methods. Not long ago to listen to a class - “the longer the stem, the higher”, let me quite touched. Health: teacher, I know Impatiens stem What effect. Impatiens leaves have many holes (pores), rain or watering