Problem Scene Presetting According To Image Elements In Junior High School Biology Teaching

Under the background of compulsory education reform,the cultivation of students' problem awareness has aroused important attention.As the premise for students to put forward,analyze and solve problems,problem awareness is of great significance to the development of students' innovative spirit and practical ability.As an effective means to motivate students to ask questions,problem scene can not only cultivate students' awareness of questions,but also promote the development of students' core literacy.Biological images are informative and intuitive,which is a good way to create problem scenes.However,through the review and analysis of relevant literature,it is found that there are few researches on how to create problem scenes by using images.Therefore,the problem to be solved in this study is to summarize the biological image features suitable for creating problem scenes and propose teaching strategies for creating problem scenes by using images.Firstly,the research status of setting up problem scene according to image elements in junior high school biology teaching was summarized,and the research contents were determined,that is analysing the images suitable for problem scene presetting in junior high school biology teaching,and putting forward teaching strategies for problem scene presetting by using images.Combined with the results of literature research,the connotation of relevant concepts and theoretical research basis are straightened out.Questionnaire survey was used to investigate the present situation of Chinese biology teachers in Yantai using textbook illustrations to preset problem scene.On the basis of questionnaire survey,the strategy of preset problem scene according to images are studied,the analysis of the basic elements of the problem scene presetting,summed up in line with the image characteristics of the scene presetting,put forward the ways of using image to preset problem scene,and the use of the general operating process of image to preset problem scene.The teaching design and analysis of the section on the origin and development of human beings are carried out by using the proposed way of creation and the general operation process,and the suggestion of image selection and using to preset problem scene are put forward.Through literature research,questionnaire survey and case analysis,the conclusions are drawn.the basic elements of problem scene presetting must be based on real situation and put forward relevant questions,these problems can cause students' cognitive conflict,and can solve problems through their thinking activities,problem scene that resonates with students.Except scientificity,intuitiveness,typicality,richness,recessive and independence,the image suitable for problem scene presetting should also conform to the characteristics of scene,emotion,extensibility,and discordant relation with students' cognitive structure.The ways to create problem scene by using images include the use of physical photos,model diagrams and schematic diagrams to create contradictory problem scene,using time-related images to preset suspended problem scene,using macro and micro images to preset step problem scene,and using images with emotional education function to preset open problem scene.The general operation process of using images to preset problem scene is to present images,preset scenes,analyze scene,ask questions,focus on images,solve problems,return to scene,and sublimate perception.According to the research results,the corresponding teaching suggestions are put forward.The selection of images is scientific,and the use of images is central and relevant,and the development of images is original.When using images to preset problem scene,we should pay attention to the appropriateness of images and problem scene,and focus on students' learning conditions,and the creation time should be appropriate.