Learning is the process of interaction between individuals with learning resources that result in a change in behavior. Learning is a process of behavioral change that includes changes in human tendencies, such as attitudes, interests, or values and changes in abilities, namely an increase in the ability to perform various types of performance. Changes in behavior must be able to serve for a certain period of time. Thus, learning can basically be seen as a process of positive-qualitative change that occurs in students' behavior as subjects due to an increase in knowledge, skills, values, attitudes, interests, appreciation, ability to think logically and critically, interactive abilities, and creativity that has been achieved. This also applies to every individual who carries out the learning process both in the family or school. However, advancement of technology has given new dimensions to teaching and learning. It expands teaching and learning beyond classrooms and the conventional chalk and talk method. The use of audio-visual aids in teaching and learning has a long history. Audio-visual aids are materials with both audio and visual presentation to support teaching and learning particularly in improving comprehension and retention. Prior to the age of radio and television, early audio-visual aids came in the forms of drawings and pictures with oral narrations.
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Audio-Visual aids therefore, arouse the interest of learners and help the teachers to explain the concepts easily. Visual aids are those instructional aids which are used in the classroom to encourage students learning process. “Visual aids are those sensory objects or images which initiate or stimulate and support learning”. “Audio-Visual aids are any devices which can be used to make the learning experience more real, more accurate and more active”. Audio-Visual aids are also tools that help to make an issue or lesson clearer or easier to understand and know (pictures, models, charts, maps, videos, slides, real objects etc.). Another use of learning resources is to clarify the relationship between material objects and concepts to understand. Symbols, graphs, and diagrams can also show associations of location, time, size, value and frequency. By symbolizing the factors tangled, it is even possible visualize abstract relationship. Instructional aides have no value in the learning process if they cannot be seen or heard. Tapes of speeches and sounds should be confirmed for correct volume and quality in the actual environment in which they will be used. Audio-Visual aids must be visible to the whole class. All calligraphy and illustration must be large adequate to be seen easily by the students farthest from the aids'. Colors, when used, should provide clear contrast and easily be visible. The efficacy of aids can be enhanced by proper sequencing to build on former knowledge. Often, good institute and natural patterns of logic command the sequence.
Audio-visual (AV) is electronic media possessing both a sound and a visual component, such as slide-tape presentations, films, television programs, corporate conferencing, church services, and live theater productions. Audio-Visual aids are those instructional aides which are used in the classroom to encourage teaching learning process. This refers to a learning aid that uses both vision and sound to transmit information and promote learning. They include video tapes, films and demonstrations. “Any device which by sight and sound increases the individual s' practice outside that attained through reading is labeled as an audio visual aids”. Visual aids are those instructional devices which are used in the classroom to encourage learning and make it easier and motivating. The material like models, charts, film strip, projectors, radio, television, maps etc called instructional aids. Audio-Visual aids are effective tool that “invest the past with an air of actuality.” Visual aids distribute the learners with true knowledge, which detention their devotion and help in the understanding of the ancient marvels. They demand to the mind through the visual auditory senses. When we use visual aids as teaching aid, it is one of the aspects which root participation of students in the lesson because when students look at visual model or aid, it is measured as a kind of contribution
Audio-Visual aids are important in education system. Visual aids are those devices which are used in classrooms to encourage students learning process and make it easier and interesting. Visual aids are the best tool for making teaching effective and the best dissemination of knowledge. Also the uses of visual aids encourage the body movement and it may strengthen the control. Visual aids are effective tool that “invest the past with an air of actuality.” Visual aids distribute the learners with true knowledge, which detention their devotion and help in the understanding of the ancient marvels. They demand to the mind through the visual auditory senses.
TYPES OF AUDIO VISUAL
iii. Audiovisual Aids examples are LCD project, Film projector, TV, Computer, VCD player, Virtual Classroom, Multimedia etc.
Academic achievement or academic performance is the extent to which a student, teacher or institution has attained their short or long-term educational goals. Completion of educational benchmarks such as secondary school diplomas and bachelor's degrees represent academic achievement.
Academic performance is the measurement of student achievement across various academic subjects. Teachers and education officials typically measure achievement using classroom performance, graduation rates and results from standardized tests.
Academic achievement is important for the successful development of young people in society. Students who do well in school are better able to make the transition into adulthood and to achieve occupational and economic success.
LEARNING INTEREST AND AUDIO VISUAL
Learning is a complex process. It can be defined as a change in disposition; a relatively permanent change in behavior over time and this is brought about partly by knowledge. Learning can happen as an outcome of afresh attained skills, principles, perception, knowledge, facts, and new information at hand. Learning can be reinforced with different teaching/learning resources because they stimulate, motivate as well as focus learners’ attention for a while during the instructional process. Audio Visual aids arouse the interest of learners and help the teachers to explain the concepts easily. Audio Visual aids are those instructional aids which are used in the classroom to encourage teaching learning process. Therefore, any device which by sight and sound increases the individual s' practice outside that attained through read labeled is an audio visual aids”. Visual aids are those instructional devices which are used in the classroom to encourage learning and make it easier and motivating. The material like models, charts, film strip, projectors, radio, television, maps etc called instructional aids. When we use visual aids as teaching aid, it is one of the aspects which root participation of students in the lesson because when students look at visual model or aid, it is measured as a kind of contribution.
The impact of audio-visual resource can be so great in teaching thus making learning permanent “audiovisual methods seem to facilitate the acquisition, the retention and the recall of lessons learned, because, they seem to evoke the maximum response of the whole organism to the situations in which learning is done. And perceptual materials richly associate themselves with the unique experiential stressed that audio-visual materials are important in the teaching and learning processes because “having seen something, most people remember, for whatever that thing was, it conjures up an image at a mere mention and can be talked freely. Students forget because of lack of interest and opportunity to use the knowledge they have gained later on. Audio-visual resources can therefore contribute to the clarity of information presented by allowing students to visualize what is learned.
In conclusion, it is only by the use of audio-visual resource that the learners can be offered the opportunity to learn by doing. This is because attention, motivation, concentration and retention of facts are enhanced through the use of audio-visual materials.