First, the unique embodiment of information technology in teaching
Today, with the rapid development of educational technology and the in-depth development of educational reform, the traditional teaching model can no longer adapt to the modern educational reform. As a teacher, we should not only master rich professional knowledge and skills, but also have the ability to design and develop educational software, which is both an opportunity and a challenge for us. Through the construction of educational Internet platform and distance teaching project, the modern teaching concept is applied to the teaching of specific subjects in China. It can be seen that multimedia can create situations and assist the construction of knowledge system, so as to give full play to students' creative potential, stimulate students' innovative spirit and realize the integration of information technology and subject courses. The realization of scientific and intelligent multimedia in teaching embodies the following characteristics:
1. Stimulate learning interest and curiosity
Interest is an individual's positive conscious tendency to try to understand something deeply or to participate in an activity. Students' interest is mainly learning interest, that is, cognitive interest. For a long time, stimulating and cultivating students' interest in learning has always been the primary task in the teaching of various subjects in schools. In the teaching of various subjects in primary and secondary schools, traditional education is used to taking teachers as the center, books as the center and classrooms as the center, which is what we usually call "three-center education". This educational model imprisons students in the campus and classroom, and it is difficult to cultivate students' ability to solve problems independently, which inhibits students' subjective initiative and innovative spirit of active exploration. This method is old-fashioned, single and has few teaching AIDS, so it is difficult to cultivate the stability and persistence of students' interest. Computer-aided teaching is more vivid and vivid than other teaching methods in color, sound, animation and expression, which is incomparable to other teaching methods and greatly stimulates students' interest in learning. In general teaching, the textbook only provides a static picture image, which has poor visual effect and can't stimulate students' interest. However, teaching with computer participation is different. It can make vivid and interesting pictures by drawing sentences in Logo or brushes and PowerPoint in Windows, and can also directly use CAI's rich and intuitive pictures and graphic animations to open students' eyes, thus stimulating students' interest in learning and producing good visual effects. For example, when teaching the article "Proud Peacock", the computer is used for animation design to show a peacock walking along the lake with its head held high in front of students. Students can intuitively see the peacock's pride through vivid pictures; Then, driven by the sound in The Window, the politeness of magpie is in sharp contrast with the pride of peacock, which vividly depicts the pride of peacock again and deepens students' understanding of the text. The teaching effect produced in this way is lively and interesting, and it is really entertaining.
2. Meet the needs of students' personality development.
The traditional class teaching system is difficult to meet the development needs of students at different levels because of the limitations of teaching environment and means. Teaching students in accordance with their aptitude is often difficult to implement effectively. The intelligent education environment based on computer and network technology can well adapt to the development needs of different students and the needs of students at different stages of development. Suppose a math teacher teaches the volume calculation of three-dimensional graphics. Teachers will arrange students to do exercises in textbooks or arrange a certain number of papers to be completed at the same time according to the previous conventional teaching methods and the consolidation exercises of new knowledge. This is naturally reasonable from the situation of most students. However, how to solve the individual needs of students with strong understanding ability and pay attention to students with slow understanding ability? Traditional methods can only restrict students with fast development, sacrifice students with slow development, and implement "one size fits all". Using computer networks for learning is another matter. Students can choose the learning content of the same target segment many times. Because the system settings can randomly set questions, students are faced with different topics with similar knowledge difficulty, which not only avoids the possible boredom in the learning process, but also enables students to repeat the acquired internal experience information, thus promoting students to internalize knowledge into learning skills.
The intelligent environment constructed by computer network environment plays a unique role in solving poor students' learning attitude, developing good study habits and establishing learning confidence. More importantly, the electronic files of students based on campus network can "track" students' behaviors, and the central computer can comprehensively judge a student's ability tendency according to his behaviors, hobbies and his file information system, and transmit these materials to all teachers, parents and even students themselves in time, so that all parties can form a joint force, create conditions for the development of students' personalities and specialties, and guide students to take the road of individualized success designed by themselves.
3. Cultivation quality
Because of the effective participation of computers in classroom teaching, students' interest in learning is really stimulated. Therefore, students' participation in classroom teaching is improved, their dominant position is obviously strengthened, they develop vividly in participation and actively participate in development. In this process, not only students' good understanding quality and creative quality are cultivated, but also good ideological and moral education is carried out.
Understanding is the core of learning, and it is a cognitive process from form to content and then from content to form. Because of the profound understanding, with the participation of computers, the images in students' minds are enriched, the thinking space of students is expanded, and students are inspired by creativity from time to time in classroom learning. For example, when a teacher was teaching the ancient poem "The Fisherman on the River", he used animation design to vividly show the scene of a boat wandering in stormy waves, so that students could realize the danger and hardship of fishing. For another example, in the class of My Comrade Qiu, when talking about the sentence "Qiu is like a boulder, lying motionless in the fire", the teacher showed the dynamic picture of Qiu being burned by fire in the computer, combined with audio and video, and also showed the static picture of a boulder, guiding students to compare and associate: the boulder is as steady as Mount Tai, but Qiu is motionless; Qiu's body has been reduced to ashes, but his indomitable spirit will never be erased in the eyes of the world. It is not difficult to see that this kind of spiritual education, which makes students' intuitive thinking rise from the first two points to the third point in image thinking, greatly improves students' imagination, which can be regarded as the development of creative thinking, further sublimates students' understanding level, understands the central idea of the article, and at the same time cultivates students' spirit of patriotism, perseverance and death.
With the development of the Internet today, every teacher should understand the great use of the Internet. They can learn knowledge, understand knowledge, know knowledge and download knowledge from the Internet, without time constraints, and vividly present things that people around them can't think of, see or have in front of students. For example, how did President Mao Zedong, Premier Zhou Enlai and others climb the snow-capped mountains and cross the grassland? How did the Japanese burn and rob China in those days? How to bully the people of China? What was the life scene of ordinary people in the early days of liberation? How did the atomic bomb explode? Spacecraft launch scenes, etc. We can all learn relevant knowledge from the Internet and download these life photos through video, and then reproduce them to students in class through computers combined with projectors, or burn them into CDs and reproduce them to students through TV sets. This intuitive and vivid teaching enables students to understand history, cherish life, cherish hard-won life, and understand the true meaning of hard work and plain living. Students deeply realize that only by practicing themselves hard and learning scientific and cultural knowledge can they be worthy of every soldier who has fallen in a pool of blood and exchanged his life for today's beautiful and happy life, and will strive to become a useful talent in the 2 1 century.
Second, provide rich teaching resources for teachers and students, thus improving teaching efficiency.
1. provides rich resources for teachers and students.
Network resources have greatly improved the pre-class preparation and learning efficiency of teachers and students. To find a certain knowledge, you can find the required information in a very short time by inputting related words in the computational search. By copying, pasting and cutting, you can easily complete what you are looking for, which saves time to a great extent. In the past, when we were in urgent need of a certain knowledge, we might have to go to the library to look it up or ask others for advice, which was time-consuming and laborious and inconvenient to a great extent. The computer solves this problem well, and it can help people solve the problem immediately. For example, the teacher asks students to divide an article into paragraphs. Students need to have knowledge about paragraph division. If students forget it at this time, the computer will help them immediately. Just open the webpage, click "Know" and enter the query content to get the answer. For words you don't understand, words you don't know, synonyms, antonyms, etc. The computer provides you with an online dictionary. In normal times, we can only ask the "teacher" of the dictionary, and we can know its meaning by computer, which only takes ten seconds or a few seconds to complete. The computer is connected with the Internet, which provides us with the knowledge you want. Why not operate in such a convenient and quick way?
2. Improve teachers' teaching efficiency.
The storage capacity of computers is larger than that of the largest library in the world, that is to say, computers have a lot of knowledge. According to statistics, it takes 700 years for a person to read all the knowledge on the Internet. We usually confine ourselves to books and sometimes go to the library to find information. In this way, our knowledge is narrow and it is difficult to improve teachers' teaching efficiency. Using computer knowledge can expand students' knowledge and make them acquire a lot of rich knowledge. In this way, students' knowledge level will naturally improve, and they can understand and solve new knowledge and problems quickly when they accept them.
First of all, in traditional teaching, teachers have great limitations in teaching. Teachers often worry that after teaching students many times, they still can't master the same knowledge, but computers are not. As long as the students can't, they can always consult the computer "teacher", and it is also painstaking to teach their own students. Furthermore, in teaching, the relationship between teachers and students is the relationship between teachers and students, and their status is different, which is also the main reason for the formation of psychological obstacles for primary school students. Students' initiative can't be brought into full play, and computers can remove this obstacle and make students have a strong desire to conquer, thus satisfying their curiosity and thirst for knowledge. In this way, students' initiative can be brought into full play and the learning effect achieved is also very remarkable.
Secondly, from the perspective of teaching methods, the application of information technology has broken the traditional teaching methods, making the teaching methods modern and diversified. The changes in teachers' preparation methods, operation methods and evaluation methods have provided a strong guarantee for the teaching reform, prompting teachers to constantly accept new educational concepts and teaching methods, making teachers' leading role more comprehensive, focusing on facing students' lectures, and transforming them into preparing new materials, making courseware, guiding students to choose knowledge and using multimedia, and mastering learning methods.
With the continuous development, research and utilization of computers, computer-aided teaching has been widely used in teaching. The computer has powerful audio-visual infection ability and nonlinear rapid interaction function. It organically combines sound, image, vision and hearing, and can better serve the completion of teaching tasks, thus improving teachers' teaching efficiency.
Third, it is easy to break through the teaching difficulties.
In the teaching process, if the traditional teaching methods are still adopted, some contents still have certain limitations. Multimedia technology has incomparable advantages because of its concrete image, dynamic and static combination and sound. Therefore, the proper use of multimedia technology can turn the abstract into concrete, make the teaching content vivid and clear, mobilize students' various senses to work together, solve the problems that teachers are difficult to explain clearly and students are difficult to understand, and effectively realize the role of teaching content from scene to emotion and conciseness. It is the use of multimedia courseware that can achieve incomparable teaching effect in class. In multimedia computer-aided teaching, teaching has developed from lecturing to innovation, which not only requires teachers to make their own courseware, but also allows students to treat their hands, brains, hearts and eyes as an operation process. It can vividly display teachers' language and students' rich imagination, make teachers' blackboard writing clearer, more integrated and systematic, and concentrate multi-level and multi-faceted thinking together for research and comparison. Therefore, computer-aided teaching provides an interesting way for students to understand the teaching content and demonstrate autonomous learning, thus making classroom teaching more vivid. The proper use of multimedia courseware to assist teaching can make students participate in teaching activities with active thinking and interest, thus improving teaching quality, optimizing teaching process and achieving twice the result with half the effort.
1. Use software to make the animation effect consistent with the content, so that students can understand more abstract things more thoroughly. For example, in the teaching of year, month and day, in order to let students understand more abstract words such as year, month, day and leap year. In teaching, we use Flash or 3D Max to make our own teaching animation courseware, and show students the dynamic images of "The earth revolves around the sun for one year, the moon revolves around the earth for one month, and the earth rotates for one day", and vividly show these abstract scenes that can't be seen in daily life to students. This not only makes them curious about the wonderful universe, but also inadvertently breaks through the important and difficult points of this class teaching.
2. Appropriate and timely use of multimedia technology, combined with intuitive images and abstract text expression, can help students break through the difficulties of the text. For example, when learning the article "Huoshaoyun", when learning the color change of Huoshaoyun, timely bring up the pictures of the color change of Huoshaoyun; When learning the shape change of the fire cloud, the demonstration video of the shape change of the fire cloud is also brought up in time. Through careful observation and careful reading of the text, students have a deep understanding of the color and shape changes of "flaming clouds".
3. Using the deformation of strokes to break through the difficulties in font teaching. For example, the teaching of "home, forest and house" can be generated by animation, and several parts can be combined vividly; Or use the corresponding video to present these words in an understanding image. Another example is the word "peck" in the lesson "Beautiful Rooster", which is a difficult point in font teaching in this lesson. Students often miss something when writing. Therefore, when teaching this word, first contact the text and ask: "Why don't woodpeckers compete with big cocks?" The student replied, "Woodpeckers should be busy treating the old trees and pecking the insects off them." Then he said, "So we can see where this bug is now?" At this time, the dot in the middle of the word "peck" appearing on the screen becomes a bug, which flashes in turn with the dot. This is vivid and intuitive, and students will never forget the "point" where the bug is when writing.
Fourthly, using information technology to cultivate students' ability.
1. Make full use of modern educational technology to cultivate students' ability to solve problems.
Using multimedia technology to show the inner charm of knowledge. Computer display through images, words, sounds and animations can not only stimulate students' interest in learning, but also mobilize their thinking, so that their psychological activities such as feeling, perception, thinking and imagination are in an exciting state, so that they can form an internal driving force for seeking knowledge, and also create a good teaching atmosphere to achieve the purpose of creative learning, thus cultivating their innovative consciousness. For example, the teaching of "cuboid volume calculation" is demonstrated by computer and projector. First, let the students feel that the cuboid volume is composed of several small cubes with the unit of 1. In this process, in order to let students judge right or wrong intuitively, a small cube with a unit volume of 1 cubic centimeter with a black background appears on the screen to reflect the length, width and height of the cuboid. Remind the students that there are several cubes with the same length and width. See how many floors are equal to the high number. Students draw the conclusion that the volume of a cuboid is equal to the length multiplied by the width and then multiplied by the height through intuitive demonstration. This intuitive demonstration provides rich materials for students to think positively, which is incomparable with other methods and means. The application of various media technologies in modern education creates an atmosphere of exploration and research for students, which not only embodies the process of students' active learning and self-development, but also enables students to grasp the key to solving problems and improve their ability to solve problems before displaying visual objects, thus achieving the purpose of learning new knowledge. There are also many situations in teaching, such as "meeting" and "doing" in mathematics. Teachers can use multimedia computer-aided teaching to create a sports situation in which Xiaoming rides a bicycle and his car go in opposite directions, or how far Xiaoming has traveled at the same speed, helping students understand the meaning and reasoning of "walking" and "meeting", which not only activates students' thinking.
2. Cultivate creativity and imagination.
In teaching, according to the actual situation of students, we should adopt various teaching methods and learning methods to link traditional teaching methods with modern information technology. The teaching method of multimedia courseware not only visualizes some abstract knowledge, but more importantly, it stimulates students' subjective participation consciousness, consciously and actively studies, and provides students with opportunities to do things themselves and explore problems. In the classroom, the teaching method with teaching as the supplement and students as the main body truly embodies that students are the masters of learning. For example, in the article "Sunrise" in primary school Chinese class, teachers can use computers to show a beautiful scene of a bright, big and round red ball rising slowly from the edge of the sky, and then describe it in words, so that students can have a clear understanding of the characteristics of sunrise, so that students can fully use their brains to imagine, associate, think or guide students to find and solve problems themselves. So as to cultivate students' creative thinking ability and imagination ability.
3. Using information technology can better develop students' potential.
When a person is inspired, everyone has a great energy, that is, potential. The subconscious plays a decisive role in people's actions, interests and hobbies. The subconscious dominates people's habitual language, actions and behaviors. The subconscious prefers vivid, perceptual and interesting material information. When teachers use language to input these language information to students, they make these language information into pictures, animations, images and so on. This kind of sensuality is easily accepted and remembered by students' subconscious mind. Therefore, the proper use of multimedia-assisted teaching by teachers in the classroom not only improves the teaching effect, but also greatly develops the potential of students.
In short, the integration of information technology provides a broad space for the growth of teachers and students in teaching. Teachers' effective integration of information technology and classroom teaching will play a leading role in teaching and change our traditional teaching concept and mode. Classroom teaching with information technology as teaching tool will undoubtedly be the dominant classroom teaching mode in the information age. As a teacher in the new century, the proper use of novel and advanced educational technology can not only make complex and abstract knowledge vivid, but also reproduce boring language and improve students' interest in learning, which is of great significance to improve students' literacy, develop students' ability and cultivate students' innovative spirit and practical ability.