With the development of effective teaching based on network technology, with the development and construction of network teaching environment and the research of network-based teaching and learning, the network has been widely used in primary and secondary school teaching. Network teaching plays an important role in supporting the effective use of teaching strategies and methods that embody the concepts of subjectivity education and quality education, promoting the transformation of teachers' teaching methods, and inevitably bringing about the transformation of students' learning methods.

Keywords: network technology; Classroom teaching; change

First, the function of network teaching

With the rapid development of computer technology and communication technology, computer network technology has made great progress. With the continuous maturity of network technology, the role and potential of network in education and teaching are fully demonstrated. On the basis of the effective teaching development of network technology, with the development and construction of network teaching environment (including design, production, evaluation and use) and the research of network-based teaching and learning, the network has been widely used in primary and secondary school teaching. Network teaching plays an important role in supporting the effective use of cooperative learning, independent inquiry, full teaching exchange, respect for students' personality differences and other teaching strategies and methods that embody the concept of subjective education and quality education. This not only promotes the change of teachers' teaching methods, but also brings about the change of students' learning methods.

The development from a single independent computer to a network is an epoch-making leap, and the network has functions that computers with separate tools do not have. All kinds of input devices, storage devices, computers and other hardware resources in the network are available online resources; Online databases and various information resources can also be enjoyed online; Network provides the fastest and most convenient way for data exchange and information exchange between people and computers.

Second, the impact of online teaching

The application of information technology with computer technology, multimedia technology and network communication technology as the core in school teaching makes network-based information resources play an increasingly important role in students' academic study. Network teaching is actually a different teaching method from traditional teaching, computer-assisted teaching and multimedia-assisted teaching. The ability to acquire, process, manage and utilize information resources based on the network has become an indispensable part of teachers' teaching ability, which will inevitably bring some changes to students' learning level, learning psychology and learning ability. Teachers will rely on information resources and network transmission system to design and organize teaching activities, and students will use information resources and network transmission system for learning. Under the network teaching mode, while students acquire knowledge, their information ability is bound to be cultivated and improved.

The influence of 1. on teaching content

The application of multimedia technology transforms static and two-dimensional teaching materials into dynamic, three-dimensional or even four-dimensional teaching materials composed of sound, words and images. The application of network teaching has expanded the teaching content from books to all aspects of society. This greatly enriches and expands the book knowledge, and students can learn more, faster and better within the prescribed teaching time. For example, the course "Into the Tang Dynasty" by Professor Zhou Yong from the 17th Middle School in Harbin broke the limitation of the original chapters and class hours in the textbook, and applied the establishment and rise and fall of the Tang Dynasty to online teaching in the form of web pages, collecting a large number of historical materials about the Tang Dynasty outside the textbook, which greatly enriched the teaching content.

2. The impact on the teaching process

In network teaching, the teaching process has changed from traditional knowledge induction and logical deduction to a new teaching process of creating situations, collaborative learning, autonomous learning and discussion learning, which has realized the change from teacher-centered to student-centered. Network teaching is an open teaching organization with students' learning as the core. In the teaching process, teachers are the organizers and participants of classroom teaching. For example, the course "Appreciation of Tang Poetry" opened by Zhu Haibo in Harbin Measuring Tool and Cutting Tool Factory's children's middle school broke the traditional teaching form, allowing students to go into the teacher's "poetic style and rhyme" website, review and appreciate Tang poetry by using the webpage, acquire knowledge independently under the guidance of the teacher, discuss and exchange in chat rooms, and express their opinions in BBS network forums, so that students can truly become the masters of the classroom.

3. Influence on students' learning style

In online teaching, students change from passively accepting knowledge to actively learning knowledge. They actively construct knowledge by using information technology and various learning resources. Students should not only learn knowledge, but also cultivate their learning ability. Students must have the abilities of creativity, innovation, autonomous learning, self-management, cooperation and coordination. Students will become knowledge explorers and real cognitive subjects in the learning process.

4. The influence on teachers' role change

Teachers have changed from traditional knowledge interpreters, transmitters and agitators to guides, helpers and promoters of students' learning. In the network teaching environment, teachers are no longer the only source of knowledge, and teachers can no longer take knowledge transmission as their main task and purpose, but should focus on how to teach students how to learn, create a favorable situation for building students' knowledge system, and let students "learn to learn". Guide students to know "where" and "how" to acquire the knowledge they need according to the needs of cognition, and master the tools for acquiring knowledge and the methods for processing information. In the network environment, the cultivation of learning ability is particularly important. It can activate students' potential ability and innovative consciousness, help students to establish learning confidence, keep learning interest, form good habits, improve their learning ability, and form good ability and quality of exploring knowledge. These are the successful factors of online teaching.

5. Impact on the role of the media

In online teaching, the teaching media has changed from the initial teacher demonstration tool to the tool for students to learn, master and construct knowledge. At the same time, the teaching media, namely the network itself, is also the object of students' learning.

Third, the problems that should be paid attention to in the process of network teaching

1. cooperative learning of students

In network teaching, collaborative learning has become the main and effective way for students to learn. Collaborative learning is a strategy to organize students to study in groups or teams. In collaborative learning, teachers should not only consider how to impart knowledge, but also guide collaborative groups to cooperate, discuss, even compete and debate on learning issues through the network. Collaborative learning mode is very important for cultivating students' creativity, innovation spirit, exploration spirit and cooperation spirit. Collaborative learning needs a lot of information resources for learners to consult. Teachers can put the information resources that students may use into the resource center of the network in advance. In the process of collaborative learning, learners can directly query the required information resources from the network resource base according to the needs of knowledge mastery. The instructional design of collaborative learning mainly includes determining the content, goal, number of participants, learning theory, and the performance of collaborative learning system.

2. Students' learning ability

Students' learning ability includes their basic knowledge, learning experience, self-study ability and knowledge acquisition ability. Students have different basic knowledge levels, different learning experiences and different self-learning abilities. All these factors affect students' ability to acquire knowledge in the network, and then affect their academic performance. These factors should be considered in the teaching design of network teaching. At the beginning of teaching, students' basic knowledge can be understood in many ways. In the design of interactive courseware, exercises with different depths can be set. In the database, the basic course content related to the course is placed for students to click and learn. Encourage students to find relevant knowledge in the network, make up for their own shortcomings, and exercise and improve students' ability to acquire knowledge. In teaching, teachers can use the teaching control function to give individual counseling to students with poor foundation.

3. Students' autonomy in learning.

Traditional teaching is teacher-centered, and students only have to accept and have no choice. However, due to the differences in intelligence, personality, learning style, learning ability and basic knowledge structure, students will have different needs in learning. If the teacher's teaching methods meet the needs of students, it will be beneficial to his study, otherwise it will be counterproductive. Therefore, traditional teaching takes "average learning level" as the basis for evaluating students' learning effect, adopting teaching methods, selecting learning materials and determining teaching progress, thus making students' learning differences more and more serious. This kind of teaching is that students learn according to the contents and methods prescribed by the teacher, not according to their own knowledge structure and learning methods. However, online teaching is not. In the teaching process, from teacher-centered to student-centered, changes have taken place in time, content, space and learning methods. This is also a common requirement of learners. In online learning, students can choose their own knowledge according to their own situation; Be able to have more control over the time, process and space of learning to a great extent; Can easily test the knowledge and skills learned, and get timely feedback. With its convenience, openness, interactivity, virtuality, diversity and rich and vivid information resources, the network provides a variety of choices for students' learning, makes the learning process colorful, and greatly improves students' autonomy and enthusiasm in learning. In this kind of autonomous learning, the network naturally becomes the central content of students' learning and a tool to acquire knowledge and study problems. The application of artificial intelligence technology, simulation technology and virtual reality technology enables students to face new learning methods that they never thought of in the past and learn knowledge that they could not learn in the past. Network teaching has also created a relatively personalized teaching environment, so that every student can get the opportunity to fully communicate with teachers, making personalized teaching possible. In this case, the teacher's primary task is to understand the situation of each student through various channels, and then teach students in accordance with their aptitude; The second task is to guide students how to obtain information and form an effective learning method. In the information age, as long as students master the methods of acquiring knowledge, they can become real learning masters.

4. Cultivation of innovative ability

Implementing innovative education has become the requirement of the times, and knowledge economy calls for innovative education. Innovation, including knowledge innovation and technological innovation, is based on having innovative talents. Network teaching provides favorable conditions for cultivating innovative talents. Network technology itself is the product of innovation. In online teaching, students actively acquire knowledge and cultivate their ability to discover, analyze and solve problems by choosing their own learning content, participating in discussions, self-evaluation and simulation experiments. Students are liberated from the shackles of traditional teaching, from passive to active, from acceptance to acquisition, which mobilizes subjective initiative, greatly improves the enthusiasm of learning, and provides motivation for imagination. Network multimedia technology organically combines text, graphics, images, sounds and other information, which is conducive to mobilizing all human sensory functions and promoting the development of thinking. Driven by imagination, students' thinking is highly active, which is easy to trigger the spark of innovation. Therefore, teachers must attach importance to the cultivation of students' innovative ability and integrate the content of innovative ability cultivation into the network teaching design. Through teaching practice, students' innovative consciousness and innovative thinking are cultivated, and their innovative ability and level are improved.

As an advanced and effective teaching method, online teaching has played an active and important role in teaching. However, how to make full use of the characteristics of online teaching and give full play to the role of online teaching is an important topic facing online teaching. Strengthening the teaching design in network teaching and improving the level of teaching design are important means to improve the quality and benefit of network teaching.

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