Pros:

• It can be used as much as the imagination of the presenter allows, so it is used to project large audiences.

• You can illustrate objects or ideas that would be very difficult to visualize with any other resource.

• You can show moving images giving realism to the cases that are required.

Cons:

• There are technical problems, therefore there is a waste of time.

• There is dehumanization, monotony and dependence.

• There is stagnation and passivity of the audience.