| 3D virtual technology as a product of the information age, through the scientific and appropriate integration of 3D virtual technology and education, to serve the purpose of teaching and educating. High school chemistry elective 3 "structure and nature of the substance" of the content of the module has a very important role in the entire chemical discipline, the knowledge about the structure of matter is always in the middle school chemistry education, but because the content of this module is more difficult and more abstract, lead to increased difficulty in teaching, students learning process is also very difficult.The structure and nature of the crystal are important contents in the whole module, and has the difficulty to be bigger, the content abstract, to the student’s space imagination request higher characteristic, in order to enable teachers to have a higher teaching quality, students can learn more efficiently, application of 3D virtual technology in crystal teaching practice, can increase the interest and reduce the difficulty of learning. Therefore, the application of 3D virtual technology in the teaching of this module has certain significance.In the research of the whole project, Firstly, through the literature research to understand the current domestic and international research status, and current research situation of the module of "structure and nature of the substance", the feasibility and theoretical basis of the application of 3D virtual technology in the module teaching are analyzed; Secondly, the 3D virtual technology is applied in the teaching of molecular crystal, atomic crystal and ionic crystal, the corresponding courseware is designed; Finally through the questionnaire method to investigate the application effect. Finally come to the conclusion that the application of 3D virtual technology in the teaching of "structure and nature of the substance" module can increase students’ learning interest, better grasp the knowledge, has the feasibility and the necessity. |