Research On Representation Of Chemical Knowledge

Chemical knowledge of the learning has been understood by many people, it is a lot of memories of science. Especially for inorganic chemistry, knowledge points are numerous and scattered, and so many kinds of material, complex reaction rules. In fact, not as we all think, there are a large part of students who can remember the basics of good points, but do not know how to apply. Chemical knowledge of the learning is not only the memory to be able to flexibly and efficiently, but also to understand and apply.This article from the perspective of students to study in the chemical process of learning effective Representation of chemical knowledge, to sum up the master to help students understand effective methods of chemical knowledge points, and then be a useful pedagogical implications.In this thesis, the knowledge representation chosen way of chemical research to high school in the declarative knowledge of inorganic as the carrier tries to explore and answer the following questions:(1) Students of different cognitive mode of knowledge in different representations of chemical performance of the way, how?(2) Declarative knowledge, factual knowledge in the Proposition combination of knowledge and meaningful characterization of the matching method, respectively?(3) Students of different cognitive mode of knowledge Representation for what?The study investigated the following six aspects and two dimensions, which are chemical status of learning style survey, based on the specific situation of macro phenomena and knowledge among learning elements compounds, abstract model through a survey to grasp abstract concepts, model by the fact that the survey master chemistry, investigation of basic knowledge of migration, problem solving across situations investigation, and knowledge storage and transfer of knowledge. Several issues on the above research and organize the results of each study I reached the following conclusions:(1) Declarative knowledge of factual knowledge (knowledge of elements and compounds) based on macro-phenomena for memory knowledge and the specific context of learning, that is, the internal representation and external representation of a combination of Representation.(2) Declarative knowledge and chemical principles in the abstract, the model is very effective Representation.(3) The tendency of students with different cognitive styles of knowledge representation approach, there are significant differences.