? With the rapid development of modern information technology, the application of network technology in education is increasingly extensive and in-depth, especially the connection between the Internet and campus network, which provides rich resources for primary and secondary education, makes network teaching truly become a reality, and opens up broad prospects for primary and secondary education. Minister Chen Zhili pointed out at the national conference on information technology education in primary and secondary schools. The state implements the "school-to-school communication" project in primary and secondary schools, and strives to realize the leap-forward development of basic education. ? School to school? The goal of the project is to strengthen the construction of information infrastructure and information resources in five years to 10, so that about 90% independent primary and secondary schools in China can access the Internet, so that teachers and students in primary and secondary schools can share online resources and improve the quality of education and teaching in primary and secondary schools. School to school? The start and development of the project has brought new opportunities for primary and secondary school teaching and laid a material foundation for subject teaching informatization. How to make effective use of network resources and build a modern teaching mode based on network is an urgent problem, and one of the important theoretical foundations of the research on network teaching mode is the design and evaluation of network teaching. Therefore, it is of great significance to explore and practice the design and evaluation of network teaching.

First, the research background of the subject

(A) Research status at home and abroad

1. The research on the design theory and method of network teaching is not systematic.

Through the analysis of relevant academic journals at home and abroad (such as Research on Audio-visual Education, Audio-visual Education in China, Educational Technology, etc.). ), educational websites and the proceedings of relevant international and domestic academic conferences (GCCCE, ICCE, CBE, etc.). ), it is found that the design research of online teaching is mainly about the design of constructivist learning environment and collaborative learning, and there is no systematic research. It can be said that the research of network instructional design theory is still in the primary stage, and there are still many problems to be studied and explored. For example, under the network environment, how to use network resources for active learning, how to use virtual situations for inquiry learning, how to use communication tools for negotiation learning, how to use tools for creative learning design, and how to use teachers' guiding activities design are all worthy of our study.

2. The evaluation research of online teaching has just started.

With the popularization of Internet application, online teaching has become an important teaching means and teaching place. However, compared with traditional teaching, the quality assurance system of online teaching is not perfect. How to ensure the quality of online teaching and establish an effective online teaching evaluation model has become an important topic in online teaching research. By 2000, the Ministry of Education approved 3 1 universities nationwide to establish online education colleges, but it did not formulate relevant policies on how to ensure the quality of online education. In April 2000, the American Institute of Higher Education Policy also published a report entitled "Online Education Quality: Criteria for Successful Application of Distance Internet Education". However, these articles (reports) are only descriptive definitions of evaluation indicators of online teaching, and little is involved in how to organize evaluation, how to obtain quantitative data, and how evaluation data can promote teaching. At present, the learning evaluation module in the network teaching support platform often only contains the test part, but lacks the corresponding analysis and feedback.

(B) the significance of the study

1, promote the development of online teaching and improve the quality of online teaching.

Because online teaching can share information resources, it is the direction of teaching reform and development to organize the best teaching materials and teaching methods online so that learners can learn the latest knowledge online. Through the research and practice of this project, online teaching can provide a constructivist learning environment for learners, fully reflect students' initiative, and students have more opportunities to apply what they have learned in different situations. Students can form an understanding of objective things and solutions to practical problems according to their own feedback, thus improving the quality of online teaching.

2. Using computer technology and network technology, find the technical scheme to realize the teaching design of students' remote interactive autonomous learning.

3. Improve and develop the theory of instructional design.

Teaching under the network environment is different from traditional teaching, not only in the teaching environment, but also in the teaching content, teaching means and teaching communication form. Through the research of this project, the problems of how to carry out teaching design, how to control teaching process and how to effectively implement teaching activities to achieve teaching objectives under the network environment are solved, which is the perfection and development of teaching design theory.