为了使学生在解答分数(百分数)或按比例分配应用题时能正确地分析题中的数量关系,使所学的系统知识与技能得到巩固和提高,就要时时引导学生把已学的知识加以整理、归纳和提炼,沟通与新授知识的内在联系,形成知识结构网络,深化对所学知识的理解。在学生学过按比例分配应用题以后(部编教材第12册第56页例1、例2),针对学 In order to enable students to correctly analyze the relationship between the number of questions in the solution of scores (percentage) or proportionate application questions, so that the system knowledge and skills learned to be consolidated and improved, we must always guide students to have learned knowledge to be Collate, summarize and refine the internal relations between communication and newly-granted knowledge, form a network of knowledge structures and deepen the understanding of what they have learned. After the students have studied the application of the proportionate assignment (Part 12 of the textbook on the second page of 56 cases 1, 2), for learning