Investigation On Using Present Situation Of Illustration In Junior Middle School Chemistry Teaching Materials And Research On Optimization Strategy

Textbooks,the so-called textbooks of the masses,have the same history as the history of schools,and are regarded as the most basic means of mass education communication,which plays an irreplaceable role in school education.As a widely used educational material,textbooks must be developed continuously to meet the needs of social development for education.The appearance of textbook illustrations is a major leap in the development of textbooks.Illustrations refer to pictures attached to books,also known as "illustrations ".The research shows that picture is a kind of material reproduction of human perception of vision,it is a kind of visual symbol,it is based on cognitive theory,and it is chosen by learners actively Select,organize,and integrate the visual and auditory information received.The chart is more intuitive and an organic part of the textbook content.It is not only the visualization and visualization of the textbook content,but also the supplement and extension of the textbook content,which has the characteristics of clarity and convenience for memory.From the relevant historical records,we can see that the Ming Dynasty's "opposite phase literacy" is the earliest textbook in the world to use pictures,and the Czech educator Comenius' s"World Diagram" is also an early textbook with illustrations.Their emergence has greatly promoted the continuous development of textbooks.As a special subject,chemistry as a special subject,some complex chemical structures and experimental principles can not be understood by students simply by the description of words.Therefore,with the development of the times,many illustrations with the characteristics of chemistry have been added to the middle school chemistry textbooks,such as microscopic and schematic diagrams,physical.diagrams,schematic diagrams,and so on.These illustrations,as an intuitive teaching material,are used to cultivate students' observation,stimulate students' interest,and develop students'interests The ability of image thinking plays a very important role,which also reflects the fact that the teaching of chemistry can not be separated from the assistance of illustrations.However,in the process of practical teaching,there are various problems in the application of illustrations in chemistry teaching materials.From the teacher level,many teachers agree with the importance of illustrations,but under the influence of today's examination-oriented education,Illustrations are rarely combined with illustrations.From the student level,most students do not attach importance to illustrations,do not know how to learn the content of textbooks through illustrations.From the teaching material level,the present teaching material illustration composition color aspect exists In a certain problem.Therefore,it is necessary to optimize the use of illustrations in chemical textbooks at present.This study puts forward the corresponding optimization strategies through the investigation of the current situation of the use of illustrations in chemical textbooks.