| The third semester of compulsory education is an important stage in the transformation of mathematics curriculum content from"number"to"form".Therefore,there are more and more studies on the theme of"operation ability",but combined with specific course content,especially operations such as fractions There are relatively few studies on ability levels.As one of the basic mathematical operations that junior high school students must master,fractional operations are the basis of symbolic operations.The cultivation of the fractional calculation ability of junior high school students during the compulsory education stage not only helps to expand students’basic mathematics thinking,improve students’number sense,symbol awareness,and model thinking ability,but also helps students continue to learn quadratic equations and inequalities in one unknown.The inverse proportional function and the subsequent analysis of mathematics will lay the foundation.Therefore,the research on the level of fractional calculation ability of junior high school students is particularly important.In order to study the current situation of fraction operation ability of junior high school students in a county in Gansu Province,the factors that affect the level of fractional calculation ability of junior high school students,and the strategies to improve the level of fractional calculation ability of junior high school students,firstly,the fractional calculation ability of junior high school students is determined through the literature research method.The three dimensions of the level evaluation framework are understanding,application,and reasoning;secondly,478 junior high school students are surveyed through the survey method,and 6 teachers are interviewed by the interview method;finally,with the help of the established evaluation framework,SPSS23.0 is used.And EXCEL and other software processed and analyzed the collected data,and found that the current status of the fractional calculation ability of junior high school students in a county in Gansu Province is(1)The overall performance of the fractional calculation ability of junior high school students is average,and the level of fractional calculation ability is average.One level of understanding,level two application level,and level three reasoning level questions are expressed to the extent that R2 can be carried out.The total scores are evenly distributed,but the individual scores of the sample are discrete and polarized;(2)Junior high school students from different schools There is a significant difference in the level of fractional calculation ability,that is,the level of fractional calculation ability of students in the second type of township school is significantly higher than that of the students of the third type of township school,second only to the students of the first type of county school;(3)Fractional calculation of junior high school students The performance of each dimension level of ability is not balanced,and the understanding ability of fractional concept is better.A survey of factors affecting the level of fractional calculation ability of junior high school students in a county in Gansu Province found that:(1)In terms of internal factors,the level of fractional calculation ability of junior high school students is affected by the ability to understand fractional concepts and the ability to master fractional calculation rules.And the influence of expression ability factors in the application of fractional equations,students’learning attitudes,behavior habits,learning will,learning interest and fractional calculation ability under non-intellectual factors are positively correlated,among which students’learning will affect fractional calculation ability The highest level;(2)In terms of external factors,the teacher’s teaching method has a significant and positive influence on the level of fractional calculation ability of junior high school students,and the level of fractional calculation ability of junior high school students is affected by the family learning environment.Based on the analysis of the above factors,three effective strategies are proposed:(1)Focus on the performance of computing ability and correct bad learning habits;(2)Enrich the teaching design of teachers and increase students’interest in learning;(3)Create a family learning atmosphere and strengthen student learning will. |