AbstractIn junior high school mathematics,factorization is very important.In theprocess of factorization teaching,in order to improve the quality of teaching andmake students bette...

AbstractThe primary function is very important,in junior middle school mathematics.It isthe opening chapter of the whole function field,so the mastery of the primaryfunction direct...

AbstractQuadratic function as an important part of mathematics teaching in junior highschool,and it is the link of function learning in junior high school and senior highschool.In ...

AbstractUnivariate primary inequality and univariate primary inequality group is a keyknowledge that junior high school students must understand and master,which playsan important ...

AbstractFirst of all,this article plays a positive role in teaching through 'RecentDevelopment Zone',and explains that if the 'Recent Development Zone'is appliedto junior high scho...

AbstractTextbook analysis is the premise for teachers to finish teaching tasks as well asthe guarantee of optimizing classroom teaching.Doing well in the textbook analysis isof gre...

要性，鼓励学生们进行自评和互评。例如，在学习完“酸和碱”这部分内容之后，可以让学生们对本章内容进行整理和归纳，比如常见的酸有盐酸、硝酸和碳酸等和酸和碱互相交换成分，生成盐和水的反应...

体系革新中，体制改变所需成本与市场经济转弱这些凸显的现实问题，暴露出国内可行性养老保险正处于第二个层面的DC计划转变为NDC计划会更适合中国的实际情况，也更加人性化。Wi11iam(2021)系统分...

贵州财经大学商务学院本科毕业设计（论文）中国平安保险股份有限公司投资价值分析专业：金融学运输学号：201801030710学生：王宏元指导教师：王子晗摘要：随着经济全球化的不断发展以及科技水平...

AbstractThe number of old people in rural areas is increasing every year,and the largenumber of old people makes the retirement problem of farmers increasingly serious.Establishing...