The Prescientific Conceptions Test And The Research Of Science Conceptions Transform In The Unit Of “Material Change” Of The Sixth-graders

The implementation of curriculum reform in China has been for 15 years since 2001,science as a scientific enlightenment teaching for students,learning the scientific concept is particularly important.With the rapid development of science and technology in modern society,the news of the students is not so close to our imagination,books,networks,and so on,they have their own understanding of the concept of learning science.These understandings will affect teachers' teaching effect.If teachers have grasped the concept of students' existence and understand the characteristics of students' concept formation and transformation,they will greatly improve teaching effectiveness."Material change" as an important element of the sixth grade primary school education science press book,the content belongs to the field of material science,it's closely related to our lives.This paper adopts the method of literature analysis,questionnaire and interview to study the change of material,through interviews with teachers of science,we can understand the concept of teacher's existence,and make clear what knowledge is the core concept;Through the open questionnaire and two class diagnostic test before test concept search students,and interviews of students,understand students' questionnaire when the real idea,to supplement the questionnaire,characteristics and influence factors analysis of students' concept formation;Finishing the lecture records,analysis of different types of teachers to students before the concept of processing.Finally,the author puts forward the teaching strategies to promote the change of students' concept.Through the analysis of the data,the author draws the following conclusions:This paper summarizes and analyzes the concept of former students exist in "material change" unit,and they have only found the concept of life theory,entity,falseadaptation and individual difference characteristics;The school environment,daily life experience,popular science books,television,computer and so on are the main factors influencing the formation of the former concept.Based on teacher interviews,learned teachers that "Professor material changes" the degree of difficulty is difficult,when the two kind of change existing at the same time,students are not easy to find enough evidence to support the conclusion,often ignore some phenomena.Finally,according to the theory of conceptual change and the existing research situation,this paper puts forward some teaching strategies,such as the use of concept map,the design of reasonable instructional design and the integration of teaching materials,to help students form scientific concepts.