easy to follow To make class more interactive and interesting To focus on student-centered approach Advantages In modern world we use digital tools to improve the teaching-learning process. The most common tool we use in classroom these days is PowerPoint slides, which makes the class more interesting, dynamic and effective. Moreover it also helps to introduce new topics in easy way. The use of audiovisual aids makes the students to remember the concept for longer period of time. They convey the same meaning as words but it gives clear concepts thus help to bring effectiveness in learning. Integrating technology into the classroom help students to experience things virtually or vicariously. For example, if the teacher wants to give a lesson on Taj Mahal, it is possible that not all the students in India have visited the place but you can show it through a video thereby allowing the students to see the monument with their own eyes. Although the first hand experience is the best way of educative experience but such an experience cannot always be done practical so in some case we need to have substitution. Use of audio-visual aids help in maintaining discipline in the class since all the students' attention are focused in learning. This interactive session also develops critical thinking and reasoning that are important components of the teaching-learning process.<ref></</ref> Audiovisual provides opportunities for effective communication between teacher and students in learning. For example, in a study on English as Foreign Language (EFL) classroom, the difficulties faced by EFL learner are lack of motivation, lack of exposure to the target language and lack of pronunciation by teacher, and such difficulties can be overcome by Audio as purpose of communication and Visual as more exposure. Students learn when they are motivated and curious about something. Traditional verbal instructions can be boring and painful for students. However, use of audio-visual provides intrinsic motivation to students by peaking their curiosity and stimulating their interests in the subjects. Disadvantages One should have an idea that too much of audio-visual material used at one time can result in boredom. It is useful only if it is implemented effectively. Considering that each teaching/learning situation varies, it is important to know that all concepts may not be learned effectively through audiovisual. Most of the time the equipment like projector, speakers and headphone are bit costly hence some of the schools cannot afford it.