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作为一名一线教师,怎样“激”起学生的兴趣、怎样让计算课堂“活”起来成了我研究的目标。为此,在一次优课比赛时我大胆地选择了五年级上册的“除数是小数的除法”一课,通过深入的研究、探讨,使这节课的教学真正“活”了起来,精彩连连。精彩片断一教师谈话:同学们,昨天有位朋友来看望我,我买了些菜,做了些好吃的招待她,你能帮老师算一算每种菜各买了几千克吗?(用投影出示四张图片:(1)青菜每千克2元,一共用去4元;(2)蘑菇每千克6元,一共用去4.2元;(3)鱼每千克8元,一共用去25.6元;(4)鸡蛋每千克4.2元,一共用去7.98元。)让学生算算每种菜分别买了几千克。算到鸡蛋时,学生发现不太好算——除数变成了
As a front-line teacher, how to “stimulate” students’ interest and how to make computing class “living” become my research goal. To this end, in a good match, I boldly chose the fifth grade on the “divisor is the division of decimals,” a lesson, through in-depth study, to explore, so that the teaching of this class truly Up, wonderful again and again. A wonderful piece of a teacher talk: Classmates, yesterday, a friend came to visit me, I bought some food, made some delicious hospitality for her, can you help the teacher count each meal bought a few kilograms of it? With projection produce four pictures: (1) vegetables per kilogram 2 yuan, a total of 4 yuan to go; (2) mushrooms per kilogram 6 yuan, a total of 4.2 yuan to go; (3) fish 8 yuan per kilogram, a total of 25.6 Yuan; (4) 4.2 yuan per kilogram of eggs, a total of 7.98 yuan to go.) Let students calculate how much each kind of food were bought a few kilograms. When I counted the eggs, the students found that they were not very good - the divisor became