In an online course, you have several choices
for presentation media such as text, sound, images and video. Although you do
not have to use all of these at one time, combinations of two or more will
make your lessons more lively and help to emphasize specific points. Some of
the combinations can include the following:
- Sound and text
- Text, sound, and still images
- Video and sound
- Text, sound, and video images
When deciding which mediums to use, consider
your students' levels of computer knowledge as well as the tools
available to them for accessing the course.
Video
Use video sparingly because large video files take time to download. A 30
second recording makes a good lesson introduction. You should not try to
record your entire lesson or a lengthy lecture on video.
Once video has been captured or saved to a disk file, usually in MPEG or AVI
format, you should convert it to Real Media format or RM. Real Media is a
streaming format, which means it plays as it downloads.
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Images
Use images when appropriate to illustrate or reinforce a point in
your lesson. If you include an unrelated image in your lesson, you
risk distracting your students.
There are two main file types of still images, JPEG and GIF. JPEG
is a format used with photo-quality images whereas GIF images are
simple drawings.
Audio
In addition to images, audios play a vital role in online teaching.
Research suggests that the appropriate incorporation of audio into
a lecture enhances the learner's retention and transfer of knowledge.
Typically, you will record in a WAV format and post, as with video,
in a Real Media or RM format.
As you become more comfortable with the technology as well as the terminology,
you will begin to see more ways of enhancing your online instruction through the
use of multimedia.
Next, click the Applications link above
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