Paper Keywords: information construction of higher education, multimedia teaching of educational technology
? The construction of educational informatization is an important measure to improve the quality of education and realize the modernization of education in China. The application of modern educational technology with multimedia technology and network technology as the core is an important content of educational informatization construction. Although modern educational technology has been widely used in education and teaching, there are still many problems. The achievements of informatization construction are far from being fully utilized, teachers' teaching concepts need to be updated, and teaching methods and courseware production level need to be improved.
? This point was implemented in the Action Plan for Revitalizing Education for 2003-2007 issued by the Ministry of Education in 2004? Educational informatization construction project? , is listed as one of the main projects of the action plan. After years of construction and practice, the construction of educational informatization has achieved remarkable results, and modern educational technology has been widely used in education and teaching. In the first round evaluation of undergraduate teaching level in colleges and universities of the Ministry of Education, What is the proportion of teachers who use multimedia technology to teach? And then what? How do teachers develop and apply courseware? It is one of the important indicators of evaluation, so colleges and universities have also increased the construction of multimedia teaching conditions and encouraged more and more teachers to apply multimedia technology to education and teaching. The application of multimedia technology has changed the traditional teaching methods and means, greatly expanded students' sensory functions, made students' learning develop to a higher level such as diversification, comprehensiveness, interest and personalization, and played an important role in improving teaching quality. However, the connotation of educational technology is not only the application of multimedia technology, many achievements of informatization construction in colleges and universities have not been fully applied to education and teaching, and there are also many problems in the understanding and application of educational technology.
? 1. Informatization construction provides conditions for the application and improvement of educational technology.
? The construction of educational informatization in colleges and universities includes the construction of information infrastructure, teaching resources, talent team and management system. To realize the informatization of higher education is to make full use of the achievements of informatization construction to develop educational resources, optimize the educational process, comprehensively improve students' information literacy and comprehensive quality, and create a new educational form that adapts to the information society and knowledge economy. In the process of informatization construction, the achievements in hardware such as information infrastructure construction and teaching resources construction provide a strong material guarantee for the optimization of education process and the improvement of teaching quality.
? 1. Campus network construction
? Campus network is a network system that connects multiple computers distributed in different locations on campus, communicates with each other according to network protocols, and shares software, hardware and data resources. The construction of campus network provides abundant network resources for the school's teaching, scientific research, management, communication and service. The computer terminals in the campus network can not only communicate with each other through network protocols, but also enjoy the relevant data on the Web server and the huge information resources of the Internet, and can access all kinds of educational and learning materials around the world, providing the necessary foundation for teachers to prepare lessons, make courseware, continue learning and students' independent, interactive and personalized learning. Through the campus network, teachers can use a large number of ready-made teaching software to exchange information and share resources with students at a high speed and conveniently, and carry out visual teaching. Through the campus network, you can also realize online direct on-demand courses.
? 2. Construction of digital library
? As the document information center of school education resources, the library has a large number of books, periodicals, microfilms, audio-visual materials and electronic books, which is the largest, most important and most basic information on campus network. Education informatization has brought opportunities and challenges to libraries, and the construction of digital libraries has greatly enhanced the functions of university libraries in serving teaching and scientific research.
? In terms of personnel training, digital library provides students with free space for independent reading, independent thinking and personality cultivation. Students can choose the knowledge they want to acquire according to their hobbies, and conduct systematic and in-depth study in this field, master research methods and form innovative consciousness.
? Digital library provides strong support for the overall level of colleges and universities and the improvement of teachers' teaching and scientific research ability. With the networking of information dissemination, a large amount of scientific research information at home and abroad gradually depends on network dissemination. It is more and more convenient to capture the latest academic information and download scientific research documents by using the network, and it has gradually become one of the important methods for teachers to engage in scientific research.
? 3. Network courses and teaching resources construction
? The construction of online teaching resources mainly includes: the construction of online courses, the construction of material database and the construction of teaching support environment. The basic feature of online courses is the courses that can run under the network environment. Under the guidance of advanced educational ideas, teaching theories and learning theories, it is an interactive online learning system of curriculum knowledge, which integrates information such as words, pictures, images, animations and sounds, is scientifically conceived and designed, conforms to the characteristics of students' autonomous learning, meets the requirements of network operation, and facilitates the communication between teachers and students. Its learning process is interactive, pleasant, open, cooperative and autonomous. 1999 initiated by the Ministry of Education? Network course construction project in the new century? , organized and developed more than 300 higher education online courses and resource libraries (material library, case library, test database) and related platforms. In 2003, the Ministry of Education started the construction of excellent courses. Teaching quality and teaching reform project in colleges and universities? One of the important contents is to build 1500 national excellent courses in five years (2003-2007). In 2007, the Ministry of Education and the Ministry of Finance pointed out in the Opinions on Implementing the Undergraduate Teaching Quality and Teaching Reform Project in Colleges and Universities. We will continue to promote the construction of national top-quality courses and select about 3,000 courses. Carry out key reforms and construction? . Through the construction, all top-quality courses at or above the provincial level have realized online access to teaching resources such as teaching plans, outlines, some teaching videos, reference materials and exercises by using modern educational information technology, and have been opened free of charge, thus realizing the sharing of high-quality teaching resources, which plays an important role in improving the quality of teaching and personnel training in colleges and universities.
Second, the analysis and research on the existing problems
? The informatization construction of education has greatly changed the traditional teaching methods and modes, and the informatization teaching mode has been adopted by more and more teachers. The author believes that what is more important than the change of teaching methods and modes is the change of teachers' teaching ideas and concepts. Modern educational concepts such as quality education, innovative education and lifelong education cannot be realized only by changing the teaching mode. In the process of information teaching, there are several problems worth thinking about.
? 1. Traditional and modern teaching methods
? Applying educational technology to classroom teaching is the inevitable result of the rapid development of information technology, and it is also the development trend of teaching methods and means reform. Teachers in colleges and universities should actively adapt to this change, take improving the application ability of educational technology as an important part of their professional ability development, and strive to improve the application level of educational technology. However, the traditional teaching method with chalk and blackboard as teaching media has its unique advantages and cannot be completely abandoned. For the course with formula derivation and logical reasoning as the main content, the teacher's step-by-step explanation on the blackboard is more in line with the learning law and more conducive to students' concentration and initiative. Teachers should choose appropriate teaching methods according to the requirements of course content, so as to arouse students' enthusiasm and initiative, cultivate students' innovative thinking, improve teaching efficiency and achieve teaching objectives. Regardless of the characteristics of the course content, overemphasizing the form of courseware making and the degree of multimedia use will affect students' mastery and application of knowledge. At the same time, many teachers will rely on multimedia equipment, and even there will be no class without multimedia. The abuse of educational technology has made many teachers turn paper lesson plans into electronic lesson plans, from scripted lesson plans to scripted lesson plans. This situation leads students to either copy the courseware content or not concentrate on waiting for copying the courseware after class. Either the teacher can't keep up with the conversion speed of PPT courseware and give up listening, and the interaction between teachers and students becomes empty talk, which seriously affects the quality of classroom teaching and the consequences are worrying. The author thinks that in the application of educational technology, teachers should not only absorb the advantages of traditional teaching methods and means, but also consider how to optimize and integrate knowledge content according to the conditions provided by modern educational technology. No matter what teaching method is adopted, the most important thing is to arouse students' interest in learning, give play to their enthusiasm, initiative and creativity, and achieve teaching objectives. Schools should guide teachers to pay attention to the realization of teaching objectives, integrate curriculum content with resources as the center, and not with the presentation effect of multimedia technology as the center.