Elementary School Mathematics Unit Teaching Based On The "UbD" Theory Design Research

In the course of the development of The Times and the reform of the educational system,school education is the main front to deepen the reform of basic education,and the progress and realization of all reforms are inseparable from the teaching of teachers.Undoubtedly,it has become the key to education and teaching to design a teaching design that truly achieves the teaching objectives and improves the core literacy of students.This study draws on the Ub D theory of the famous American educational reform scholars Wiggins and Mc Stay,takes the understanding and needs of students as the center,firstly determines the expected learning outcome,and then determines the evidence of achieving the expected outcome.Finally,learning and teaching activities are arranged to facilitate students’ understanding and transfer of knowledge and skills,so as to achieve teaching objectives.Based on the educational concept of "Ub D",this these takes the unit of "Knowledge Score" in the second volume of the third grade mathematics edition of Beijing Normal University as an example to design a unit teaching design based on "Ub D" theory,and evaluates and measures the achievement of students’ learning objectives by combining expert advice with three levels of "Ub D" : knowledge,mastery,thorough understanding and comprehensive application.To verify that the application of "Ub D" theory in class can indeed improve students’ understanding and mastery of the knowledge they have learned,achieve teaching objectives and thus achieve the purpose of improving students’ core literacy.To this end,the following three research questions are set:(1)How about unit teaching plan design based on "Ub D" theory?(2)How is the teaching effect of unit teaching based on "Ub D" theory?(3)Reflections on unit teaching based on "Ub D" theory? In this paper,using the method of literature,case analysis,educational observation,questionnaire and interview,respectively "one point(1)","one point(2)","size" and "eating watermelon" as the object of research.Firstly,on the basis of "Ub D" theory,a detailed teaching scheme is designed for four subjects.Secondly,the practice of classroom teaching is carried out,and the implementation effect of classroom teaching program is deeply analyzed.Finally,according to the actual situation of this study,this study puts forward some concrete teaching suggestions.Through the research,three conclusions are drawn: first,the design of teaching objectives based on curriculum standards is the premise of developing unit instructional design based on "Ub D" theory;Secondly,the "three-stage" process of instructional design based on "Ub D" theory is an important guarantee for developing effective unit instructional design to achieve teaching objectives.Thirdly,the implementation of unit instructional design based on "Ub D" theory can improve the teaching effect,help students to achieve learning objectives and promote the formation of core literacy.Therefore,the research puts forward three suggestions: first,establish teaching objectives based on mathematics curriculum standards;Secondly,proficient in the application of "three-stage" design process based on "Ub D" theory;Third,vigorously implement the teaching design based on "Ub D" theory in primary and secondary schools,and provide rich curriculum resources.