Research On The Teaching Design Of "decimal Addition And Subtraction" From The Perspective Of Mathematics Core Literacy

Nowadays,teaching that based on the core literacy has become one of themes of Basic education reform and development.The research of core literacy of the 21st century students has been published in 2016,and the Subject Standard for Senior Mathematics(2017 edition)will be published in 2018 by ministry of education in our country.The Core literacy has been becoming one of hot issues and orientations of education research and reform.Subject core literacy is fully embodies educational value,how to present core literacy in the mathematics teaching practice,to cultivate the students’ mathematics core literacy has become the important and difficult problems in mathematics curriculum and teaching reform.Therefore,Selecting specific content for the teaching design is full of value and significance in enriching core mathematics literacy research,optimizing the elementary school mathematics and carry out the science education.Firstly,Basing on the content of mathematical core literacy,and according to the mathematics learning characteristics of elementary students,this paper build the elementary school mathematics core literacy from 7 aspects:abstract mathematics,mathematical reasoning,mathematical modeling,intuitive imagination,computing power,data analysis,and mathematics emotional attitude.Next,combine the general framework of elementary school mathematics teaching design to build the framework of the elementary school mathematics teaching design that based on the perspective of mathematical core literacy,which includes the preliminary analysis and the main structure.Then,the paper take the first edition of the fifth grade "the decimal addition and subtraction" as an example,doing a teaching research from teaching goal,teaching content,teaching process,teaching evaluation and putting forward the specific design scheme of three classes of this unit,and analyzing the implementation of elementary school mathematics core literacy in mathematics teaching.Through the implementation of classroom teaching,the teaching factual record and the analysis of effect,we found that the core mathematics literacy in the classroom teaching can improve the students’ satisfaction and class participation,increase the students’ interest in mathematics learning,cultivate the student’s mathematics application consciousness,and promote the development of students’mathematical core literacy.On the teaching design and implementation’s reflections,the paper concluded that the teaching view-based mathematical core literacy need reading materials deeply and exploring the core literacy of the main contents;Creating reasonable situations and educating mathematical experience;designing activities targeted and improving students’ ability of mathematical reasoning and computing;designing diversified evaluation methods and strengthening the cultivation of students’ core literacy.