Audio Visual Aids are very useful for the teaching process, they are facilitators for making an explanation of a topic that may involve difficult term, into a easy understanding. Besides, audio-visual are great tools to catch the audience attention, and help them to get involve into the learning process without problem. They help to present the material in an atractive way, so that is more meaningful for everyone to process the subject. Even thought, they sometimes are not well used, that is why is important to have into account the main objectives of the task is prepare with these kind of tools. Since there are cases in which teachers used them to substitude their teaching. Some of them are portable and cheap, however, the expensive aids are great for anything is need to be present.

It is a very good conclusion