A Research On The Process Of Problem Representation In Chemistry Teaching

Problem representation is a means of understanding in solving problems. It is very important in solving problems, the persons who solve should understand the question at first before beginning to solve the activity in a certain conscious problem. Understand question mean statement and individual's previous knowledge of issue build and construct and publish a certain sign to the question among the brain in other words according to at that time situation, This text form through what experiment study issue signify mechanism " kinds of example analogy " signify the influence forming to the issue mainly, revealing one kind of examples to study, can take shape , it is diagrammatic with the development problem to be abundant, the analogy of one kind of examples is moved and signifies decisive meaning in forming the correct problem.In order to lighten the burden of memory while representation, this text has put forward external some forms that representation of chemical problem, and has put forward and signify some methods to train externally .The knowledge and ability influence the important factor signified, this text has proved through the experiment that the concept knows and signifies the inherent relation of competence, have put forward the method to set up concept maps, point out that the concept maps carries on the importance of meaningful study to students, set up the correct sign that the knowledge network contributes to the question.In the problem solves , the importance of meta cognition while signifying cognitivly in the problem, paid attention to by people day by day, Strengthen problem solve meta cognition training of ability of course, will contribute to and improve student analyse and solve ability of problem, this text put forward some improve meta cognition measure of ability.