Experimental Research On The Application Of Micro Class In Junior High School Mathematics Concept Teaching

With the development of "Internet Plus Education Model",micro-courses have become an important resource for classroom teaching in my country.The "Compulsory Education Mathematics Curriculum Standard(2011 Edition)" pointed out that "it is necessary to fully consider the impact of information technology on the content and methods of mathematics learning,develop and provide students with rich learning resources...so that students are willing and possible to invest in realistic and exploration The application of micro-courses itself has improved the practicability of information resources,but research shows that most teachers have not used it effectively,and the effectiveness of the application of micro-courses needs to be empirically studied.Therefore,exploring the application strategies of micro-courses and empirically verifying their effectiveness has become one of the urgent research topics in the field of educational information technology.Junior high school mathematics concept teaching is at the core of junior high school mathematics teaching,and it is also an important part of the implementation of the "Four bases"requirements and the cultivation of mathematical literacy.The basic idea of mathematics curriculum in our country is that "student learning should be a lively,active and individualized process...Students should have enough time and space to experience observation,experiment,guessing,calculation,reasoning,verification and other activities.However,traditional concept teaching often ignores students' experience in learning activities,leading to low learning enthusiasm and poor conceptual understanding and application effects.So,based on the "Four Bases"perspective,this study attempts taking the teaching of "the concept of acute trigonometric functions" as an example,to explore the strategies and effectiveness of micro-courses in the teaching of mathematics concepts in junior high schools.The research work is mainly carried out from two aspects: theory and practice.Theoretically,it summarizes the research of micro-courses and junior high school mathematics concept teaching.On this basis,analyzes the feasibility and necessity of micro-courses applied to junior high school mathematics concept teaching research,and try to explore the three principles of micro-courses application from the perspective of "four bases" :(1)Application foothold: Grasp the "Double Bases" teaching;(2)Application focus: Infiltrate basic mathematics ideas;(3)Application pointcuts:Accumulate basic activities experience in "doing".And put forward six strategies of micro-courses application:(1)Promoting students' thinking in the process of introduction,inspire the desire for concept exploration;(2)Communication during observation,and accumulate experience in discovery activities;(3)Verifying in the guessing link,intuitively perceive the essence of the concept;(4)Show the micro-courses in the proof link to help develop students' reasoning ability;(5)To make summary in induction link for improve the level of students' mathematical abstract thinking;(6)In the application of knowledge,it helps students consolidate knowledge,strengthen concept understanding and promote knowledge transfer.In terms of practice,research is conducted by combining teaching experiments and investigations.First,based on the principles and strategies of micro-courses application from the“Four Bases” perspective,use the existing series of conceptual micro-courses to conduct teaching experiments.Secondly,through classroom observation,examination paper testing and questionnaire surveys,the use of micro-courses application strategies to test students' learning.The impact of grades,learning styles,emotional attitudes,etc.The research results show that the application strategies of micro-courses from the perspective of the “Four Bases” not only help students improve their academic performance,including the improvement of conceptual understanding and application,but also help students enhance their interest in learning,learning styles,and emotional attitudes.Most students are more optimistic about the way micro-courses are applied to teaching.