论文部分内容阅读
教学要求:1、使学生初步理解这类应用题的结构(包括相差数的逆叙形式)并能讲述算理。 2、培养学生观察、比较、抽象、概括与分析数量关系等能力。教学过程一、复习 1、出示应用题指名2人板演,其余口答下题。 (1) 饲养组养了15只白兔,养的黑兔比白兔多5只,养了多少只黑兔? (2) 饲养组养了15只白兔,养的白兔比黑兔少5
Teaching Requirements: 1, to enable students to initially understand the structure of such applications (including the difference between the number of the reverse form) and can tell the arithmetic. 2, students develop observation, comparison, abstraction, summarize and analyze the relationship between quantity and other capabilities. Teaching process First, the review 1, produce the title of the application show 2 people play, the rest of the mouth to answer the question. (1) There were 15 white rabbits raised in the feeding group and 5 black rabbits raised more than the white rabbits. (2) There were 15 white rabbits raised in the feeding group. The white rabbits raised less than the black rabbits 5