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The purpose of using an LCD projector is as a learning medium
that can provide a visual display of detailed teaching materials so that

students can learn and activate new stimuli to the activeness of students
in the learning process.
The following are some of the preparations needed by teachers in

using LCD projectors as teaching media, including:
1) Teachers understand and master the use of computers and LCD

projectors
2) Understanding and mastering slide shows
3) good use of colour and visuals

4) Animation and photos to taste
5) Use slide shows sparingly.

e. Computer-Based
Media Today, computers have different functions in education and
training. The computer is a manager in the learning process known as

Computer Managed Instruction (CMl). There is also the role of the
computer as an additional aid in learning; its use includes the presentation
of information on the content of the subject matter, exercises, or both.

This model is known as Computer Assisted Instruction (CAl). CAI
supports learning and training but is not the primary deliverer of the
subject matter. Computers can present information, and other learning

stages are delivered not using computer media.
According to Azhar A (1997), the use of computers as learning media

generally follows the following instructional process:
1) Plan, organize and organize, and schedule lessons
2) Evaluating students (test)

3) Collecting data about students
4) Conduct statistical analysis of learning data

5) Make notes on learning progress (group or individual).
The format for presenting messages and information in CAI consists
of programmed tutorials, intelligence tutorials, drill and practice, and