Based On The Investigation, Research And Practice Of Micro-lecture Preview Of High School Mathematics Teaching

With the profound change of the basic education in China and the rapid development of information technology,since the new curriculum reform,the state vigorously advocates the learning mode of "autonomy,cooperation and inquiry",and the pre class preview has been paid more attention to;With the rapid development of new media technology,micro class has attracted the attention of teachers in the first line because of its unique characteristics.As a teaching assistant,it has been widely used in various fields of basic education.This paper takes the "investigation and research and practice based on the pre-study of junior high school mathematics teaching" as the topic,and studies the following problems by means of literature analysis,questionnaire survey,interview and experiment(1)What is the current situation of mathematics preview in senior high school? And the reasons of the status quo are analyzed;(2)Can the implementation of the pre-curricular preview improve the effect of pre class preview and what teaching practice value?The main contents of the paper are summarized as follows:The first and second chapters first define the concept of micro class and preview;Then,the paper introduces the current situation of micro course and preview at home and abroad,and the theoretical basis of this research;It is found that there are more research documents in the application of micro course in teaching,but the research on combining micro course with pre class preview is still relatively few;Especially in the high school stage,the research on teaching by using the preview of micro course is less,and there is a large research space.The significance,content and method of this research are determined.The theoretical basis of the practical research of Junior Mathematics preview micro course is based on constructivism learning theory,Ausubel's "advance organizer" theory and micro learning theory.The third chapter,taking the students and teachers as the research object,makes questionnaire survey and analysis from the students' preview mode,the understanding degree of micro course and the teaching status,and analyzes the problems and reasons of the micro course in the specific application of teaching,and expounds the feasibility of applying micro course preview in mathematics teaching of senior one.The fourth and fifth chapters summarize the five principles of the design of mathematics micro course in senior high school,namely,the principle of micro principle,the principle of student centered,the principle of construction,the principle of integrity and the principle of moderate design;Based on the conclusion of questionnaire survey,the teaching cases about the properties of equality and inequality,basic inequality and quadratic function and quadratic equation and inequality of one element are designed.Through the selection of two senior students in a middle school in Wanzhou as practical objects,the author makes practical research;Different preview modes are adopted for teaching.The experimental class adopts a new preview mode(i.e.micro class preview)which uses the time between classes to play,group preview,and then teaching.The comparison class still adopts the way of students' self preview before teaching.Through the comparative analysis of the pre-test and post test results of the two classes students,and the interview with the students after the test,the relevant conclusions are drawn,and the summary,reflection and future prospects are put forward.Through the investigation and teaching practice of the junior high school mathematics micro course,the experiment data are analyzed by spss20.0software,which shows that the students' mathematics achievement in the pre-study experiment class has been improved,and the students' interest in learning has also been improved through the analysis of the interview;This reflects that the micro course preview can play an important role in the high school mathematics teaching,can improve the students' mathematics achievement and interest in learning mathematics,and promote students to develop good habit of preview.