Ministry of higher and secondary special education of the republic of uzbekistan termiz state university

2. Advantages of using visual materials through mass media in classes
Visual aids are effective tools teachers can use in the classroom to enhance student interest, comprehension, and retention of information and concepts. At VariQuest, we offer tools to help students and teachers achieve greater results in the classroom, such as machines that create vibrant visual aid posters.
The Benefits of Visual Aids for Teaching and Learning
There are some features, which can be used to ascertain the extent to which audio visual aids are of great value in a learning procedure. And their values depend upon the extent to which they assist in achieving the objectives of instructions and maybe indicated briefly under the following heads:
Relevancy:The aid must be relevant to the topic which needs to be improved. Very important standard value is the extent to which any aid is directly related to the understanding of the subject knowledge. A visual aid could be accurate to the best details comprehensible and interesting and yet to be of little value because of its irrelevancy. Let us see a specimen; a teacher is trying to make clear the pattern of sodium atom with the help of chart. Suppose if the teacher uses accurate and beautiful chart on which there are so many other atomic structures drawn. Automatically it will lose much of the teaching value. Perhaps because of the presence of irrelevant material on the chart.
Accuracy:It is very important to make the audiovisual aids are exact and accurate but it is difficult to make them as accurate as desired and expected. The chart is always missing the third-dimensional attribute and must be viewed from a fixed standard place. The models overcome both these difficulties but are seldom as accurate in the details as images. The accuracy of understanding is often considering as important rather than the accuracy of the specimen.
For example; if someone is teaching the principal parts of flowers by drawing an apple blossom. It is of some little importance whether the diagram resembles the apple blossom in every detail but the important thing will be to clarify the proper relation of such parts as petals, stamens, etc. for this reason a good diagram might be of even greater value than an accurate photograph. Hence it is the accuracy of the concept produced rather than the accuracy of details (exactness) in visual aids, moreover which is important. And on the other hand, a teacher uses a large model of a leaf plant in his classroom and then observes that the students when given the actual plant do not recognize it as being the same thing.
Interest:Audio-Visual utilization makes the learning procedure very easy and its absence makes it disgusting its presence makes the work a privilege and its absence makes it a punishment or lack of source of knowledge. The main job of the teacher is to create interest in the students for learning any subject taught. Almost all the academics should be taught with the help of audiovisual aids so many concepts in secondary level classes that can be made interesting with the help of chats, images, and films. For example atomic structure, patterns, modules, and digestive systems, mathematical figures, historical events geographical maps and graphs, etc.