Junior High School Chemistry, Physics, Biology Blend Of Teaching Research

Since the foundation of the nation, our junior middle school physics curriculum, biological curriculum and chemistry curriculum are set mainly in the form of separate subjects.They not only play an important role in guiding students to understand the substance of the composition, structure, properties, interaction, and the law of biological movement,but also in culturing the scientific literacy of students.But it is needless to say that separate subjects also have its own formidable shortcoming. Therefore, this paper is based on the chemistry course, to compare with the junior middle school physics course and biological course in the aspects on the fusion of knowledge, skill, method, values, etc. In this foundation, the present writer further proposed three kinds of teaching model in blending knowledge and then designed teaching method accordingly to the founding,wishing to make a contribution to developing the good thinking quality of the junior middle school students and also improving their cientific literacy.The results show that:1. The blended content run through the whole process of Junior middle school science courses, involving concepts, principles, STSE, material knowledge, experiments and scientific inquiry, and other dimensions.2. The conceptual blend of content can be roughly classified into four parts, such as "material change of state","the material side,""composition of matter" and "social life". The blending of chemical and biological concepts is mainly in terms of social life, and physical and chemical blending points are more evenly distributed. With the future that the blend point of "material change of state" and "material form" having a little more point. In terms of timing, the blend of chemical course and biological course are mainly distributed in the seventh grade of biological textbook. Then the blend of chemical course and physical course are distributed in the whole ninth-grade textbook.3. In the junior middle school period,the material change theory of chemistry and physics blend in the theory of change of state theory, acoustic theory, and there is fusion between power and the energy theory; And the organism structural hierarchy theory and the ecological theory of biology course have many blending point with the chemistry in the corresponding.4. On the fusion of STSE content, the chemical and biological blend in many aspects such as disciplines of the physical, health, environmental, chemical fertilizers and crop growth, etc. However, the chemical course blended with the physics mainly in the material, energy, and environment and so on.5. Although the three subjects set a large number of explore experiments, the directly experiments are very short.But the inquiry method,the experimental method of blending are very large, especially the method of controlling variable approach,which is the most commonly used experimental means in the three subjects.6. The fusion content of the scientific curriculums is an important factor in the junior middle school study, if the teaching of blending content being properly handled; it can promote the students in learning science courses and enhancing their capacity of analysising problem and problem-solving.7.Mingled with the character of the blended content, the learning requirements and the earning situation of the grade9students,this topic raised the blending teaching principle which is based on the suitability of target,the authenticity of the selected content, the design of exploratory activities,the evaluation of the contents applicability. Then put forward the three blended teaching patterns which are separately based on the chemistry-centered, the society-centered and the student experience-centered problems.