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"Junior High School Students about the ’Salt’ before the Concept of "the Concept of Exploreation and Research into Strategy

Author: ZouJingJuan
Tutor: ZhengChangLong
School: Northeast Normal University
Course: Education
Keywords: Before the concept Concept into Transformation Strategy
CLC: G633.8
Type: Master's thesis
Year: 2011
Downloads: 166
Quote: 1
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Abstract


A large number of scientific research and chemistry teaching practice show that, prior to the formal study of chemical knowledge, students have a variety of channels through their daily lives and learning experiences, build their lives around the world from their own cognitive system, and understanding of these formed on the basis of their own ways of thinking, that in the minds of the students have the objective to build the world’s self-concept exist before the formation of the chemical. In the first concept they have some understanding things correctly reflect the objective laws of development, while others are inconsistent with scientific knowledge. Since the concept of the existence of these former students will affect the formation of the system of scientific concepts in teaching if we ignore the students have knowledge and experience, the implementation of knowledge to students "fill in irrigation", which is not conducive to student learning. Therefore, in teaching we need to probe the minds of students already in the pre-concept and accordingly take the appropriate teaching strategies for conceptual change teaching, which is junior high school chemistry teaching is of great significance.Taking into account before the concept has potential, it is spontaneously present in the minds of students, it is difficult to detect, and consequently how to probe students’ pre-concept, what kind of teaching strategies can help students transform these concepts before, is the actual teaching the problem to be solved. In this study, constructivist learning theory, with a self-compiled questionnaire as a tool for 240 junior high school students conducted a questionnaire survey to probe this part of teaching students about the salt content of the concept of situation before; on the basis of selection in the detection of 5 A typical bit-depth interviews with student representatives, to understand the reasons for the formation of the former concept, and propose changes before the concept of targeted teaching strategies: through the media, education, deepen understanding of the concept; with the problems caused by the concept of conflict, to promote the concept of transformation; With analog, a comprehensive understanding of the concept, to consolidate the formation of scientific concepts; to experiment, understand the concept of the essential characteristics of the interference rule out the concept before.

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