The 21st century, the high level of development in information technology, information technology is widely used in various fields. Educational informationalization becomes an inevitable result and requirement the information society. To meet the challenges of the information age to education, the traditional concepts of education, teaching mode, teaching management in every aspect of our work must implement effective reform. As a stronghold of educational informationalization of primary and middle schools, classroom teaching should be integrated properly with information technology, as is the key to education reform.Web-based information technology teaching, with its unique advantage, not only improves traditional classroom teaching but provides a strong platform support for the teachers' teaching and students' learning. It also meet the demands of students individual learning and provide a more convenient learning opportunities to enrich the learning environment and teaching resources. How to launch the information technology classroom instruction of high school under the environment of network and what instruction model are suitable for high school information technology courses is the focus of this paper.The paper consists of six parts. The first part explains the background and significance of the web-based information technology teaching in senior middle schools from the perspectives of the new curriculum reform and information literacy.The second introduces the theoretical basis of networking classroom instruction, including the theory of constructionism, cognitive theory, a theory of multiple intelligences. Under the guidance of these theories, web-based information technology teaching improves students' independent learning and practical learning.The third part analyses the teaching cases of information technology education in high schools, including the analysis of classroom teaching, the characteristics of high school students, the role of teachers and the teaching evaluation.The fourth part designs and constructs the web-based classroom instruction model for the information technology subject in high school, and probes into the operating principles and procedures of the above theories and instruction model.The fifth part describes the construction of a network teaching platform, including teaching platform aim, platform design principles and system structure. In the meanwhile, the part analyses three typical cases of specific teaching.The sixth part is the summary of the whole research that the proper and practical instruction model should be adopted on the basis of students' individualities and differences and that teachers should constantly research and sum up to create more effective instruction model. |