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在小学数学应用题中分数应用题是重要组成部分,与整数应用题相比较,具有其自身的特点与解题规律。学生对这部分知识的掌握程度,有助于整个小学阶段知识的条理化、系统化的形成,也为学习百分数应用题打下牢固的基础。那么,怎样有效地进行分数应用题的教学呢?笔者结合自己多年的教学实践觉得应该做好以下几方面。一、准确界定基本概念标准量、比较量、分率是小学分数应用题教学中最基本的三个概念,只有在学生准确掌握三者的含义及其数量
In primary school mathematics application questions, the application of fractional questions is an important part, compared with integer application questions, has its own characteristics and problem-solving rules. Students’ mastery of this part of knowledge helps to form a systematic and systematic knowledge of the entire primary school and lays a solid foundation for learning the application of the percentage. So, how to effectively teach the application of the score it? The author combined his years of teaching practice that should do the following aspects. First, the precise definition of the basic concepts of standard quantity, comparative quantity, fractional grade is the most basic three concepts in the teaching of primary school questions, only the students accurately grasp the meaning of the three and their number