1. Computer Multimedia for Classroom Teaching and Learning

2. Definitions of Multimedia
‘Multimedia is the exciting combination of computer hardware and software that allows
you to integrate video, animation, audio, graphics, and text resources to develop
effective presentations on an affordable desktop computer.’ (Fenrich, 1997).

3. ‘Multimedia is characterized by the presence of text, pictures, sound, animation and
video; some or all of which are organized into some coherent program.’ (Phillips,
1997).

4. ‘Multimedia combines five basic types of media into the learning environment: text, video, sound, graphics and animation, thus providing a powerful new tool for education.’ (Asthana, 2012)

5. Elements of Computer Multimedia

6. Text
Text has the most impact on the quality of the multimedia interaction.
Text provides the important information.
Text acts as the keystone tying all of the other media elements together.

7. Sound
Sound is used to provide emphasis or highlight a transition from one page to another
Sound enables teachers to present lots of information at once.eg a complex image paired with a spoken explanation
Sound used creatively, becomes a stimulus to the imagination; used inappropriately it becomes a hindrance or an annoyance.

8. Video
Visualization capabilities of video can be immediate and powerful.
The representational qualities of video help in placing a theoretical concept into context. Eg for highly complex scenarios that are difficult to explain using only text, diagrams or images.
Video has the dramatic ability to elicit an emotional response from an individual. Such a reaction can provide a strong motivational incentive to choose and persist in a task

9. Video can stimulate interest if it is relevant to the rest of the information on the page, and is not ‘overdone’.
Video can be used to give examples of phenomena or issues referred to in the text.
Video is appropriate to convey information about environments that can be either dangerous or too costly to consider, or recreate, in real life.
For example: video images used to demonstrate particular chemical reactions without exposing students to highly volatile chemicals, or medical education, where real-life situations can be better understood via video.

10. Example Video

11. Animation
Video is usually taken from life, whereas animations are based on drawings.
Animations are primarily used to demonstrate an idea or illustrate a concept
Animation can be used to show changes in state over time, or to present information slowly to students so they have time to assimilate it in smaller chunks.

12. Graphics
These can be photographs, drawings, graphs from a spreadsheet, pictures from CD-ROM, or something pulled from the Internet.
With a scanner, hand-drawn work can be included.
Images make use of a massive range of cortical skills: colour, form, line, dimension, texture, visual rhythm, and especially imagination.

13. Features of Computer Multimedia
Enhance text only presentations by adding interesting sounds and compelling visuals
Engage a variety of learning modalities (visual, auditory and possibly kinesthetic) which can appeal to various learner styles simultaneously
Allow development of more engaging, persuasive presentations

14. Types of Multimedia Programs
1) Instructional multimedia products e.g. British Encyclopedia
2) Video production and editing packages e.g., MS Video Maker
3) Multimedia authoring packages e.g., MS PowerPoint,

15. Some specific uses of multimedia
Drill and practice to master basic skills
Creating tutorials and research presentations.
Understanding abstract mathematics and science concepts
Simulation in science and mathematics
Problem solving
Individualized and cooperative learning
Acquisition of computer skills for general purposes

16. Benefits to Learners Work at own pace and control their learning path
Learn from an infinitely patient tutor
Engages students into design and organization process
Motivates students.
Allows students to get information easily
Benefits audio/visual learners.
Appealing and manageable to students with special needs and at-risk students

17. Benefits to Teachers· Saves time for more challenging topics
Replaces ineffective learning activities
Increases student contact time for discussion
Enables teachers to turn teacher-centred lessons into student-centered.
Provides teachers with more opportunities to be facilitator.
Easily adaptable to all learning levels.

18. Disadvantages of Multimedia
Multimedia packages require good quality computers.
It may not be accessible to a large section of its intended users if they do not have access to multimedia-capable machines
Development costs in multimedia are very high and the process of developing effective multimedia takes time.
The user must possess a minimum level of computer literacy in order to exploit the capabilities of this medium for learning

19. There is need for training of the educator who is unfamiliar with the production and design of multimedia.

20. Thank you for listening
Siyabonga
Tinotenda
Gracias