| In the curriculum concept,the Compulsory Education Curriculum Plan and Curriculum Standards(2022 edition)points out that the mathematics curriculum content should be structured and integrated,explore the path to develop students’ core literacy,and guide students to solve problems in the authentic situation,gradually accumulate activity experience,and improve the core literacy.The new curriculum reform advocates the development of teaching towards the direction of big concept,so some new teaching forms with big concept as the theme,such as large unit teaching and interdisciplinary theme teaching,emerge at the historic moment.Large unit teaching is the effective path to cultivate students’ core literacy,in order to achieve large unit teaching unit goal,need to have a "big situation" based on real life to lead the unit "big task",based on the large situation derived each associated small situation,to drive the task,help students to study effectively.However,in the current junior high school mathematics classroom,the situation creation based on large unit teaching is not ideal.There are problems in the situation creation that are divorced from students’ reality,lack of authenticity,relevance and integrity,pertinence and interest.In this study,the situation creation based on large unit teaching is applied to junior middle school mathematics classroom.By creating a large situation running through the large unit,a situation line runs through the whole unit,so as to help students solve problems in the progressive and interrelated situation,achieve unit goals,and promote the cultivation of core literacy.The specific research contents are as follows:First,through the study of situation creation and the content of large unit teaching.First of all,through reading the relevant literature at home and abroad,the domestic and foreign research current situation of situation creation and large unit teaching is expounded,and the two core concepts are defined.Secondly,the research background and significance are expounded by reading the mathematics curriculum standard and mathematics textbooks of junior middle school and combined with the thinking characteristics of junior high school students.Secondly,the questionnaire for teachers and students surveyed more than 300 students at different levels from the first to the third grade in Jinan,to understand the situation creation and students’ attitude and views on the situation,to understand the cognition and ability of situation creation and large unit teaching,and the specific problems in the situation and implementing the situation teaching,so as to understand the current situation of junior middle school mathematics classroom based on large unit teaching.Analyze the effective questionnaires collected,summarize the advantages and existing problems in the situation of the creation and implementation based on large unit teaching in the junior middle school mathematics class,and analyze the causes of the problems.Thirdly,the basis of large unit teaching situation creation is proposed systematically first,including: compulsory education mathematics curriculum standard and students’ actual learning situation;secondly,the basic principles of situation creation based on large unit teaching are given,mainly including authenticity,integrity,relevance,pertinence and interest,and finally explore the design idea of situation creation based on large unit teaching.It mainly includes five steps: clarifying the goal of the unit situation,finding the real prototype of the situation,clarifying the situation type,constructing the situation framework based on the large unit teaching and constructing the situation teaching evaluation system under the large unit teaching.Fourth,to Beijing normal university in Beijing normal university version of the third chapter "the relationship between variables" as an example of design large situation teaching,on the basis of the design principle and design ideas of case analysis,in order to test whether the strategy is real and effective,for a line of junior high school teachers large situation creation and teaching to provide case reference. |