Mixed Teaching Design And Practice Of Junior High School Geometry

During the 2020 epidemic prevention and control,online teaching became the main way of education,all kinds of education information network resources,online learning platform to use on an unprecedented scale and development,after several months of online education experiment,the information-based education in our country perfect constantly,local scholars begin to pay close attention to the feasibility of digital education and development.In order to make full use of online resources and the advantages of traditional education model,a new education model--mixed teaching model emerges at the historic moment.With the deepening of modern information education theory,the teaching method integrating online and offline education gradually appears in the classroom of primary and secondary schools,which also puts forward higher requirements for primary and secondary school teaching.The Compulsory Education Mathematics Curriculum Standards(2011 Edition)emphasizes the integration of mathematics and information technology,encourages teachers and students to use modern technology to deal with mathematical problems efficiently,and cultivates students’ innovative ability and practical ability.The section of "Graphics and Geometry" in junior high school occupies an important position in junior high school mathematics teaching.It not only undertakes the content of plane geometry in primary school,but also lays a foundation for geometry in senior high school.It is an important carrier for cultivating students’ intuitive perception,abstract thinking and logical reasoning ability.But because of the characteristics of geometry itself,students "avoid geometry content",it is very difficult to learn.On the basis of searching and reading a large number of relevant references and according to the current situation of geometry teaching in junior high school,the author creatively applies the mixed teaching mode to geometry teaching in junior high school,the author creatively applied the mixed teaching mode to geometry teaching in junior high school,and designed a specific application case.It can be divided into the following three parts:The first part through the questionnaire survey and junior high school junior middle school mathematics teacher interviews to determine geometric feasibility of application of hybrid teaching mode,analysis due to the short time of traditional classroom teaching task,ignore students’ subjectivity in geometry learning concepts,theorems understand thoroughly and the nature and the theorem of the parallelogram confusion,the complicated problems such as comprehensive question baffled,using hybrid teaching breakthrough the limitation of time and space,pay attention to students’ subjectivity,a variety of online teaching resources,enhance the level of students’ thinking improve students geometric status quo.The second part combines the teaching practice of junior high school geometry,and classifies the content of junior high school geometry.Under constructive of theory and connective of theory,the principle of mixed instructional design is proposed and the general process of mixed instructional design applicable to junior middle school geometry teaching is constructed,which is divided into three stages: online preparation before class,face-to-face teaching in class,and online and offline summary and evaluation after class.On this basis,according to the concept of geometry,theorems and the characteristics of the review class,the paper puts forward a specific hybrid teaching design method for junior high school.Third part design was applied to practice,in order to determine the condition of triangles are congruent,"parallel quadrilateral sex" and "geometric review" three contents mentioned in this paper,hybrid,for example,the specific interpretation teaching design in the geometrical concept,theorem and examples,the application of the three major content in order to improve the state of geometry learning,improve the students’ literacy,geometry for teachers in junior high school geometry hybrid provides the basis of the practice of teaching.