The use of audio-visual aids or instruction is becoming very popular in the education sector. Visual aids include pictures, textbooks, charts, models, television, films, radio maps, tape recorders, slides, video tapes, strip projectors and overhead projectors. Physical facilities include classrooms, theatres, laboratories, resource centres, etc. As a matter of fact, vocational or trade subjects have advantages in terms of suitability for visual aids because substances and processes are common and can easily be seen and demonstrated. The audio-visual aids are most used for teaching and presentation like seminars, paper, undergraduate project defence and a lot more.
2.0 Audio-Visual Aids
Teaching aids arouse the interest of learners and help the teachers to explain the concepts easily. Undoubtedly, audio visual aids are those instructional aids which are used in the classroom to encourage teaching learning process. Audio visual can also be seen as any device which by sight and sound increase the individuals' experience beyond that acquired through read described as an audio visual aids. Audio- Visual aids are those instructional devices which are used in the classroom to encourage learning and make it easier and interesting. The materials like charts, maps, models, film strip, projectors, radio, television etc called instructional aids. Audio-Visual Aids is also a training or educational materials directed at both the senses of hearing and the sense of sight, films, recordings, photographs, etc used in classroom instructions, library collections or the likes. Audio-visuals present information through the sense of hearing as in audio resources; sight as in visual resources or through a combination of senses. Indeed, the variety of such resources is a striking characteristic. The term audio-visual material is commonly used to refer to those instructional materials that may be used to convey meaning without complete dependence upon verbal symbols or language.

See Samples Of Education Projects On Audio-Visual Aids

A text book or a reference material does not fall within this grouping of instructional materials but an illustration in a book does. Some audio-visual components are in the nature of process and experience for example, dramatizing an event or a procedure or making diorama. Some of the audio-visual materials like the motion pictures require the use of equipment to release their latent value. Some do not need equipment at all like an exhibit or a study print. This term designates in common usage both material things as well as processes such as field trips. Anzaku further states that audio-visual materials include materials and equipment alike that materials are considered to be system or body of content of potential value when put to work while equipment or instructions often referred to as hardware, components are the means of presenting such content.
3.0 Academic Performance
Academic instruction is arguably the primary business of education. To this end, schools are expected to influence students’ learning, socialisation, and even vocational preparedness for education courses. Despite the attention paid to a broad definition of educational outcomes, however, academic performance remains central. Students’ academic performance is a term that appears frequently married in higher education discourse. Academic performance is a multidimensional construct composed of the skills, attitudes, and behaviors of a learner that contribute to academic success in education courses. It is a satisfactory and superior level of performance of students as they progress through and complete their school experience. The implication of this definition is underscored by research which repeatedly demonstrates that the vast majority of students who withdraw from school do so for no reason other than poor academic performance. Although the importance of academic achievement is rarely questioned, reaching unanimity regarding its measurement has been elusive. The measurement of students’ academic performance continues to be a controversial topic among policymakers, measurement experts, and educators. Researchers have used a variety of ways to measure academic achievement such as report card grades, grade point averages, standardized test scores, teacher ratings, other cognitive test scores, grade retention, and dropout rates.
4.0 how audio-visual aids affects students performance in education courses
The use audio visual materials bring freshness and variety to the learning experience. They make learning meaningful over a wide range of student’s abilities. They encourage meaningful use of subject matter by allowing negative involvement and active participation. Audio-visual materials technology provides the teacher with means of extending the students horizon of experience in education courses; the main feature of visual materials, lies in the ability to make possible, a wide range of sensory stimuli, by providing a more direction from seeing, doing and trying The best audio visual materials are those designed specially to meet some particular teaching needs. The teacher’s main task is to make his or her student learn effectively. To carry this out effectively, he or she needs the materials also known as teaching materials therefore, most of the effective and useful materials must be constructed by the teachers. Any teacher wished to teach effectively, and efficiently must anticipate the need, and he or she is expected to produce his or her own audio visual materials designed for a particular or specific needs. No matter the efforts the ministries of education may make, to actively promote and encourage the use of audio visual materials, they are bond to yield not much dividend unless the teacher shows them interest in the design, development and use to the audio visual materials. To the end, in service training courses, and workshop, should be conducted from time to keep up the interest and zeal of then teachers. This is with view of enhancing their ability to produce or improved a variety of teaching materials.
5.0 conclusion
In conclusion the use of audio visual aids is very effective in improving students academic performance in education courses. The only challenge that might hinder the effective administration of audio visual aids for education courses are lack of instructional personnels that can use various audio visual aids in teaching and learning.

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