在自然课的教学中,有时会出现备课时意想不到的情况,这些情况往往是突然发生,持续时间不太长,却很容易引起学生的无意注意。此时教师若能巧妙地发挥教学机智,将会收到良好的教学效果。有一次抓到一只黄鼠狼,为了使更多的小朋友学会动物标本的制作方法,我把它拿到教室里剥制给同学们看。剥到尾部时不小心小刀碰到了臭腺,一股浓烈的呛人的臭气立刻就充满了整个教室,学生都紧紧地捂住了 In the teaching of nature classes, unexpected situations sometimes arise during lesson preparation. These situations often occur suddenly and not last long, but they can easily lead to unintentional attention of students. At this point, if teachers can cleverly exert their teaching tactics, they will receive good teaching results. Once caught a weasel, in order to make more children learn how to make animal specimens, I took it to the classroom stripped to classmates look. Peel the tail accidentally hit the smelly knife, a strong choking odor immediately filled the classroom, the students are tightly covered