Demonstration is showing how a thing is done and emphasizing of the salient merits, utility and efficiency of a concept a method or a process or an attitude.
In the demonstration of a new product the speaker shows the product tells all the good things about the product to promote it in order to convince the audience that the product is worth buying. To ensure that the demonstration works we ought to plan and prepare very well before we conduct the demonstration.
A good demonstration is an audio visual presentation. It is not enough that the teacher talks a demonstration is a dramatic performance. The speaker will do their best to convey the audience.
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