Teaching Design And Practice Research On The Series Of Equal Differences In The Core Literacy Of Mathematics

With the promotion of quality education,core literacy points out the development direction for classroom teaching.The high school mathematics curriculum standard issued by the Ministry of education in 2017 points out that the core quality of the subject is the focus of high school mathematics teaching in the future.Mathematics teachers need to enable high school students to master the basic mathematical abstraction,mathematical modeling,mathematical operation,data analysis and logical analysis in classroom learning.This shows that the society puts forward new demands for talent cultivation,and pays more attention to the people-oriented education concept.Therefore,it has become the main teaching task of high school mathematics teachers to integrate the subject core literacy into the teaching content in the high school mathematics classroom,which is also one of the research background of this study.As an important part of high school teaching,arithmetic sequence plays a connecting role in sequence chapters,and is widely used in real life.Through learning arithmetic sequence,it is helpful to cultivate senior high school students' subject core literacy in mathematics classroom.Therefore,this study has a certain practical significance.In this paper,combined with the research at home and abroad and the actual situation of s high school in a city,and based on the use of scientific research methods,special research is carried out.The main purpose is to understand the current teaching situation of arithmetic sequence,and explore the teaching design of arithmetic sequence under the background of mathematics core literacy.Through the analysis of the data,we find the following conclusions: teaching preparation stage.Only 31.58% of the teachers can often analyze the teaching materials and students around the core quality of mathematics,and the implementation is not ideal.Teaching activity stage.(1)In concept teaching,53.59% of teachers are lack of introducing life examples,35.87% of teachers still need to strengthen the consciousness of introducing mathematician deeds,31.57%of teachers ignore the process of students' independent concept generation;(2)in formula teaching,42.1% of teachers are lack of guiding students to experience deduction process,40.08% of teachers are lack of organizing inquiry activities,and52.03% of teachers ignore helping students understand Memorizing formulas leads to students memorizing formulas mechanically;(3)in applied teaching,57.89% of the teachers take the sea style training,lack the skills of summarizing and solving problems,and 54.43% of the teachers lack the ability and literacy of using the arithmetic sequence to cultivate students' ability to solve practical problems,which leads to high school students' single repeated learning and repeated practice for a long time in mathematics classroom In the middle.Teaching promotion stage.47.37% of the teachers are lack of classroom summary activities,only 10.53% of the teachers will set hierarchical homework,and the students with high mathematical literacy can not further improve their ability of generalization and problem-solving.Based on the problems found in the survey,the author puts forward the basic strategies to improve the teaching according to the relevant theories of the core literacy of Mathematics:(1)grasp the essence of the concept,improve the mathematical abstract literacy;(2)improve the mathematical operation literacy with multiple solutions to one problem;(3)pay attention to the combination of application and practical problems,improve the mathematical modeling literacy;(4)create effective situations,improve the intuitive imagination It is necessary to improve the students' ability of logical reasoning by highlighting the dominant position of students,and to improve their ability of data analysis by infiltrating efficient learning methods.Finally,according to the proposed teaching strategies,some knowledge is selected for teaching design,and three teaching cases are compiled.Through the research of this paper,it can not only play a guiding role in the establishment of high school students' subject core literacy,but also play a certain reference significance for high school mathematics teachers.