A Probe Into The Function Of Conceptual Network Structure Diagram In Middle School Physics Teaching Design

For classroom teaching, the instructional design is a guide of the teaching action to optimizing teaching effect, and improving the teaching efficiency. Therefore, the instructional design for teaching work, is important. An instructional design requires teachers to analyzing and thinking from several aspects. In the process of instructional design, not only requires teachers to have excellent knowledge reserves, clear network of knowledge, at the same time also need teachers can clearly know the teaching level, teaching approaches, etc. The requirements for teachers, especially inexperienced young teacher, is a huge challenge. If only from past the point of view of subjective factors such as direct experience and indirect experience to analyzing teaching content, sometimes teacher will produce some bias, due to the lack of teaching. The network structure graph of concept is based on the complex network theory to define a knowledge structure graph. It not only can make knowledge network visualization, let a person clean intellectual context., can also in quantitative analysis of the network node of some of the characteristics of knowledge, help teachers analysis of teaching content, teaching goal, select suitable teaching path, etc. Therefore, the exploration of the network structure graph of concept of function of the application in the high school physics instructional design is extremely has the research significance.This study is defined the concept of instructional design and the network structure graph of concept, clarify the meaning of the instructional design in this paper. This paper introduces the advantage of the network structure graph of concept and its similarities and differences with other knowledge structure graphs. Then, on the basis of the five principles of scientific, conciseness, integrity, suitability and integrity, illustrates the way of building the network structure graph of concept. At the same time, introduces the four common topology parameters of analyzing the characteristic of the network node, namely the node degrees, betweenness, clustering coefficient and importance. This paper expounds the application of the network structure graph of concept in instructional design, teachers can through the proportion of the node number and value of degree and betweenness to analyzing the status of teaching content in teaching material; By contacting multiple the network structure graph of concept to understand students basic knowledge; Based on the node betweenness and importance ranking situation, and considering students, set teaching goals and important and difficult point; Refer to the characteristics of the teaching content and difficult point to selecting the way of teaching and the distribution of teaching time. By comprehensively considering node betweenness and importance, to selecting key nodes, work out teaching path, etc.And start at the application strategy of the network structure graph of concept in the three different type of lessons such as new teaching, experiment and recitation lesson, introduces and analyses the application of function of the network structure graph of concept in the middle school physics instructional design. In the new lesson, the application of functions of the network structure graph of concept in the middle school physics instructional design mainly include five parts:analysis of the status of teaching context, basic knowledge of students, the teaching goal and the important and difficult point, teaching method and the distribution of time. In experiment lesson, the application of functions of the network structure graph of concept in the middle school physics instructional design mainly include three parts:analysis the teaching goal, teaching methods, teaching time allocation, as well as teaching path. In recitation lesson, the application of functions of the network structure graph of concept in the middle school physics instructional design mainly include three parts:analysis status of knowledge, clarify the key knowledge, and design review three paths, etc.Through these introduction and analysis, we can see that the network structure graph of concept can introduce the thought of the complex network theory into secondary school physics instructional design work, describe the network characteristics of each node with topology parameters, assist teachers complete the instructional design work from the perspective of constructivism, help students to better construct the knowledge network with meaningful learning.