论文部分内容阅读
我在教学“两位数减两位数”的退位减法时,注意发挥课本的作用,通过直观演示、阅读课本、竖式计算相结合,讲清算理和计算法则。教学例3,我以小棒为教具,边演示,边讲解,说明两位数减两位数退位减法的计算过程。讲解后指导学生阅读课本。边提同,边看书,指导学生看小棒
When teaching the abatement subtraction method of “double-digit double-digit”, I paid attention to the role of textbooks. Through the combination of visual demonstration, reading textbooks and vertical calculations, I clarified the principles of calculation and calculation. Teaching Example 3, I am a small stick for the teaching aids, while demonstrations, while explaining that the double-digit double-digit subtraction subtraction subtraction calculation process. After explaining the guidance of students to read textbooks. While mentioning the same side, reading, guiding students to see a small stick