1) Lower cost

Less equipment and fewer materials are needed by an instructor doing a demonstration. It is, therefore, cheaper than having an entire class conduct experiments. However, cheaper education is not necessarily better education.

2) Availability of equipment

Certain demonstrations require equipment not available in sufficient numbers for all students to use. For example, not every student in a physics class needs to have an oscilloscope to study sound waves.

3) Economy of time

Often the time required to set up equipment for a laboratory exercise cannot be justified for the educational value received. A teacher can set up the demonstration and use the rest of the time for other instruction.

4) Less hazard from dangerous materials

A teacher may more safely handle dangerous chemicals or apparatus requiring sophisticated skills.

5) Direction of the thinking process

In a demonstration, a teacher has a better indication of the students’ thinking processes and can do much to stimulate the students to be more analytical.

6) Involves more sense

It helps in involving more senses to make learning permanent.

7) Develops interest

It develops interest and motivates students for active participation.

8) Easy understanding

It facilitates easy understanding of simple and complex skills.

9) Involves students

Teachers usually involve students whole conducting demonstration.

10) Show the use of equipment

An instructor may want to show the students how to use and prevent damage to a microscope, balance, oscilloscope, etc.

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