Miao Yanjiao
Abstract: Physical projectors show the advantages of convenient, flexible and efficient use in classroom teaching. Appropriate use of physical projectors in Chinese classroom teaching can optimize classroom explanations, make classroom feedback timely and efficient, and make students feel happy learning, improve teaching effects, and achieve optimal integration of Chinese classroom teaching. Clever use of physical projectors to participate in the enlightenment appreciation of Chinese language teaching, literacy, reading comprehension, writing, writing, one-by-one presentation and practice commentary, and also widely used in other disciplines, so that students can intuitively image The feeling, active and active participation in classroom teaching, can harmoniously unify students, textbooks and media to optimize the integration of classroom teaching.
Key words: physical projector; classroom teaching; improve teaching efficiency.
The physical projector, the video booth, is an indispensable device in the multimedia classroom. The video display stand has an auto focus function, the image is clear, and the image size is flexibly changed, which provides good conditions for visual teaching. The physical projector not only has the function of a general projector, but also has the biggest feature that it can put the physical object out, and it is customary to say what to put and what to put. Moreover, it is convenient and simple to use, and does not require pre-preparation skills. It does not require the teacher to write the slides one by one, so that the teacher can spend the time to write the slides on the lesson preparation. This makes it easy for even a teacher who has no experience in computer slide production. Therefore, physical projectors have been widely used in many classrooms, especially for our language teachers, it is a rare good helper.
First, it is convenient to project the illustrations in the textbook onto the screen and zoom in for students to watch.
There are many illustrations in primary school textbooks. Using the projector to teach can improve the classroom teaching effect. For example, in the teaching of "Looking at the Lunar Eclipse", it is difficult to explain clearly the phenomenon of eclipse and its causes to the second-grade elementary school students. Most teachers use visual aids to teach: such as using a three-ball instrument, a flashlight for the sun source, the results are not ideal. Because the three-balloon is too small, the visibility of the eclipse phenomenon is too small, and the flashlight is weaker during the day and cannot show the eclipse. Using the projector as the sun source, using two different balls to replace the earth and the moon for experiments, the eclipse phenomenon is clear, and the cause of the eclipse is easy for students to understand. This difficult breakthrough, we believe that is the result of the use of projection. Using the focus will give you good results. Usually, focusing is to get a clear picture, but the blurred picture obtained by focusing is not worthless, and sometimes even unexpected results are received. For example, in the article "Precious Textbooks": "When I woke up, I found that my head was hurt. The instructor was not far from me, and did not move. The bundle of books was completely intact. Underneath, I have been stained with blood." Here, the instructor’s shelter is one of the focuses of the text. We designed a slide for the instructor to give up the book. In the teaching, I got a sly picture through focusing. “I†just woke up and saw it in confusion. Then I got a clear picture through focusing. “I†clearly saw what the instructor’s book was doing; Focusing on the picture - "I" was instructor...
Second, in the literacy teaching, the new words are projected onto the screen and enlarged for the students to watch.
In the teaching of Chinese, students should initially feel the words of this lesson. In the past, my approach was to let students read the text while looking at the words in the back of the text, and found and marked them in the text. The students are doing very slowly because they have to keep flipping through the books. It is much more convenient to use a physical projector. The teacher directly puts the book on the physical projector. After the class, the words are clearly displayed on the big screen. The students can find it by looking at the screen, and the speed is improved and the economy is saved. Time.
Third, it is convenient to enlarge the words and sentences in the text to the screen to guide the students to analyze and understand the contents of the text.
In Chinese teaching, understanding the content of the text should also be achieved by reading the text. The teacher does not make too much analysis and explanation. This requires some audio-visual means to assist teaching, and the physical projector can be said to be a good helper. For example, if students are instructed to read the text lesson emotionally and grasp the key words and sentences to understand the content of the text, you can put a certain section of the text on the physical projector, which words should be re-read to focus on, and which words should be read slowly. You can make a mark directly on the book. The students can understand it clearly and the teacher can be thoroughly guided. For example, when I was teaching the text "Daddy of Good Learning", I put the first paragraph of the text on the physical projector. I read it emotionally and circled the key words in the book. In this way, the students are very impressed when they listen and watch. When it was my turn to read, I didn’t look at my own book and looked at the screen. The whole class seemed to have a resonance and read very emotionally. This method is more practical in the instructional teaching of senior grades.
Fourth, in the teaching of writing, use the real projector to write strokes.
The lower grade language is at the basic stage, and it is important to guide students to write pencil letters. Imitation is the nature of a child. If you can let students see how the teacher writes, they will definitely imitate it and use it as an example to learn. The projected image is clear and easy for the teacher to write and demonstrate. This can make the audio-visualization static and slow, so that the process that is invisible or invisible can be fully displayed, thus providing emotional materials. The teacher's writing demonstration is an important part of the teaching of writing class, which plays a role in sublimating and demonstrating the students' writing. If the model is cantilevered on the blackboard, the students can't see the process of running the pen; if the individual demonstrations are time-consuming and narrow, it will be time-consuming and narrow. The projection is strong and the image is large and clear. (I guided the students to write, followed the rules of writing, and fully played the role of the physical projector. The specific method is: put the student's copybook on the physical projector, then the teacher is on the copybook Painting red, imitation, and post, while writing, point out what to pay attention to when writing this word. In the position of the character, students are very interested in observing. When students write, they will unconsciously follow The teacher just wrote the method for a long time. Is it afraid that the student’s words will not grow? The intuitive image of the projection will help to stimulate the novelty and diversity of the content and methods of the interest in learning. It can attract students' attention and stimulate students' learning. Motivation to improve their enthusiasm for learning. Primary school children are young, their attention is easy to disperse, and they are also very prone to lack of confidence and perseverance. I put many calligraphy stories on the film and tell them, so that students can be noble in a relaxed atmosphere. The edification has inspired the interest of the characters; the famous ancient posts are selected on the film to enlarge, such as the dignified and strong Liuyan characters, the rich and sturdy The characters, the sinister European characters, etc., allow students to watch, so that they can grasp the style characteristics of various fonts as soon as possible, and it is easy to grasp the law when copying, so as to enhance the confidence of the characters. Please have some basic skills to write your own homework. On the slides, for the whole class of students to appreciate, stimulating the enthusiasm of learning than the school.
5. When writing, use physical projectors to display physical objects, materials, and essays.
There is a speaking class in the first grade and a writing in the second grade. This is the foundation for the future writing of students. If the content of speaking or writing is a small object, you can directly knock the object down on the big screen through the physical projector, so that the students can observe more clearly and increase their interest. For example, if you want to write goldfish, you can put the goldfish bowl with goldfish on the physical projector. The students see on the screen that the fresh goldfish swims in the water, and the students’ interest in writing is improved. The things written are real and full of vitality, and they are much stronger than the words of goldfish in the air. In the middle and upper grades, there is an essay class. Before writing, you can enjoy the interest of students by appreciating the essay, viewing materials, etc., and provide examples for reference.
Sixth, the works show the evaluation of the physical projector one by one to help.
In the evaluation of the work, the physical projector also contributed. The lower grade writing class and the middle and upper grade composition classes are inseparable from the process of displaying student works. The traditional practice is usually to hang the work on the blackboard, or let the students stand on the podium with their own works. Because the work is small and the students can't see clearly, the eyes are scattered, and there is no real appreciation, and the feeling is weak. The physical projector can quickly project the student's work onto the screen and zoom in, so that the whole class can see clearly, and this can quickly show who's work is correct, standardized and beautiful on the spot. Also urged the font is not good, students with more typos pay attention to writing. And when the students saw that their work was enlarged to the silver screen for the whole class to enjoy, the heart is called beauty! This not only enhances the student's confidence, but also motivates those students who have not been shown to be behind, and strives to show their work on the screen of the physical projector next time. At a glance, so the physical projector is a good helper for Chinese teaching. Secondly, in the teaching demonstration, the art teacher knows that there is a step in painting or hand-made, even if there is no need to "step by step", but there are eight Nine is a demonstration process that cannot save the teacher. In the past, it was called a bitter art teacher. I didn’t want to talk about it before class. It’s just a half-day for the demonstration steps. The students don’t necessarily understand. With the help of a physical projector, students can watch the whole process of the teacher's presentation. Of course, students are more likely to master the method. First of all, in the appreciation teaching, the textbooks for students to appreciate the ancient and modern Chinese and foreign famous paintings and the excellent works of contemporary students, because of limited layout, small space, many places can not be identified, students generally look at it, refused to be fine Taste, it is difficult to attract the attention of the students even if the teacher raises the textbooks with great enthusiasm during class. At this time, if the small screen of appreciation is placed on the physical projector and enlarged to the screen, the effect is completely different, and the students will stare at the screen and quickly feel and resonate. At this time, the teacher will explain a little, and the students will be infected with strong art.
Seven, in the exercises to explain the teaching, the physical projector is a good helper for the teacher.
In the problem-solving teaching, the teacher can directly put the workbook, the papers, the student's homework, etc. on the booth of the physical projector, and focus on the large screen and zoom in, at a glance, easy to display, which is conducive to targeted explanation. Greatly improve the efficiency of classroom teaching.
Eight, multi-disciplinary application of physical projectors.
The application of the physical projector is not limited to the teaching of Chinese, I also try to use it in teaching such as morality. For example, to guide students in orderly or targeted observation of teaching materials and so on. In other words, physical projectors can also be widely used in mathematics, English, science and other disciplines.
In short, we should properly grasp the use of pictures and texts that participate in Chinese teaching to magnify and appreciate according to the characteristics of the teaching process. Literacy, reading comprehension, writing, writing, one-by-one presentation and exercise commentary are also widely used in other disciplines. To enable students to intuitively feel the moment, to play the superiority of the visual image of the physical projector teaching, to embody the abstract concept, to organize the complex content, to make the content of the lecture vivid, vivid and realistic, and to arouse The interest of primary school students to learn, help them understand, remember and consolidate knowledge, improve the efficiency of classroom teaching, and let the physical projector be a good helper for teachers.
references】
[1] Zhang Qi. Wonderful use of interest to improve teaching efficiency and cultivation habits - the integration strategy of lower grade Chinese classroom teaching and physical projectors [J]. Strait Science, 2008, 12 issues.
[2] Zhang Li. The use of physical projectors in the teaching of junior high school. [Z]. June 05, 2006.
[3] Opposite. Projection. A good helper for writing teaching., [Z]. "Chinese Pen Calligraphy", [M], No. 9 of 2009.
[4] Fu Weishen. On the application of physical projectors in physics teaching, [J]. Caizhi, 2009, issue 17.
[5] Cao Yanqin. Using a physical projector, [J]. Elementary School Nature Teaching, 2001, issue 11.
About the Author:
Miao Yanjiao, a primary school language teacher, undergraduate, research direction for primary school Chinese teaching, moral science teaching.
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