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"The educational technology in the classroom is worth nothing if teachers do not use it efficiently." "Computers are not magic, teachers yes." Craig Barrett, Intel chairman.

EDUCACATIVO GRAPHIC SUMMARY OF USE OF MEDIA
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FUNCTIONS THAT MAY MAKE THE MEDIA . According

as used in the teaching and learning, teaching aids and educational resources in general can perform various functions, including:

- Providing information. Virtually all the information provided explicitly teaching aids, books, videos, computer programs.

- Guiding the learning of students, instruct. Help organize information, to link knowledge, create new knowledge and apply ... It's what makes a textbook for example.

- Exercise skills training. For example, a computer program that requires a certain psychomotor response to its users.

- motivate, arouse and maintain interest. A good educational material should always be motivating for students.

- Assess the knowledge and skills you have, as do the questions from textbooks or software.

Correcting students' mistakes are sometimes made explicitly (as in the case of multimedia who monitor the actions of the users) and in other cases it implicit as is the student who realizes their mistakes (as happens for example when interacting with a simulation)

- Provide simulations that offer environments for observation, exploration and experimentation. For example, a flight simulator computer, which helps to understand how to pilot a plane.

- Provide environment for expression and creation. This is the case of word processors or computer graphics publishers.

media classification

From consideration of technological platform which are sustained, teaching aids, and therefore the educational resources in general, are usually classified into three groups:

conventional materials:

- Print (text) books, photocopies, newspapers and documents.
- Boards Teaching: Blackboard, franelograma.
- manipulative materials, cutouts, cardboard.
- Games: architectures, table games.
- Materials Lab.

visual materials:

- projectable Stills (photos): slides, photographs.
- Sound materials (audio) cassettes, CDs, radio programs.
- visual materials (video): audiovisuals, films, videos, television programs.

New technologies:

- Software (CD or online) education: videogames, author languages, learning activities, multimedia presentations, encyclopedias, animations and interactive simulations.
- Telematic services: websites, weblogs, virtual tours, webquests, treasure hunts, email, chats, forums, lessons and courses on-line ...
- TV and interactive video.