3 Instructional appropriateness It includes three main points, which are:
a  the appropriateness of media for the planned instructional strategy; b  the efficiency and effectiveness manner offered by the media;
c  whether  the  media  will  facilitate  the  students  acquisition  of  specific learning objective or not.
6. Interactive Multimedia
a. The Definition
Richards  and  Schmidt  2002:  345  explain  multimedia  as  the  use  of several  different  types of media for a single purpose, e.g.  as in  a video that uses
film, audio, sound effects, and graphic images. They also add that multimedia is a collection of computer controlled or computer mediated technologies that enables
people  to  access  and  use  data  in  a  variety  of  forms:  text,  sound,  and  still  and moving  images.  Vaughan  2008:  1  says  that  multimedia  becomes  interactive
when the users of multimedia application can control what and when some parts of  the  application  contents  will  be  delivered.  Added  to  this,  lesson  on  CAI
Computer-Assisted  Instruction  materials  may  involve  a  question  on  the computer,  a  response  from  students,  the  feedback  from  computer  telling  the
students  if  the  answer  is  “correct”.  In  CAI,  such  activities  are  said  to  be “interactive” Richards and Schmidt, 2002: 265
b. Principles of Interactive Learning Multimedia
To  design  interactive  learning  multimedia,  we  have  to  take  into  account seven  basic  principles  of  interactive  multimedia  as  recommended  by  Mayer
2005: 6-7. The following is the list of the principles. a  Multimedia  principle:  Students  learn  better  from  combination  of  words  and
graphics than from word alone. b  Split-attention principle: Students learn better when the corresponding words
and graphics are placed closely to one another than separately. c  Modality  principle:  Students  learn  better  from  graphics  and  narrations  than
graphics and printed texts. d  Redundancy principle: Students learn better when the same information is not
presented in more than one format. e  Segmenting, pre-training and modality principles: Students learn better when
a multimedia message is presented in learned-paced segments rather than as a continuous  unit,  students  know  the  name  and  characteristics  of  the  main
concepts and the words are spoken rather than written.
f  Coherence, signalling, spatial contiguity, temporal contiguity and redundancy principle:  Students  learn  better  when  an  extraneous  material  is  excluded
rather  than  included,  when  cues  are  added  that  highlight  the  organization  of essential material, when corresponding words and pictures are presented near
rather  than  far  from  each  other  on  the  screen  or  page  or  time  and  students learn  better  from  graphics  and  narrations  than  from  graphics,  narration  and
on-screen text.
g  Personalization,  voice  and  image  principles:  Students  learn  better  when  the words  of  a  multimedia  presentation  are  in  conventional  style  rather  than
formal style and when words are spoken in a standard-accented human voice rather than a machine voice or foreign-accented human voice; but students do
not necessarily learn better when the speaker’s image is on the screen.
c. Elements of Interactive Learning Multimedia
The  effective  interactive  learning  multimedia  should  contain  some elements  that  enable  both  teachers  and  learners  to  use  it  easily  and  effectively.
Ivers and Baron 2010: 112 describe the main elements which make up a typical multimedia program. Those are as follows.