ABSTRACT
Instructional essages are ones hich seek to pro ote learning, and purely l te i t
ril ti n t
of message esign re ncerned it the lear d una biguous i t of specific r ed that will e nderstood the i tended dience. oth re ncerned it
icate ffi i tl . r, t r l i f r ti l ss is s l si it
r r t ll t r teristics f t i ce t t infl c re ension a , especially, effective lear i . e riter f i f r ati al ne s
r c entary aterial is c cer ed ith style, it i i , ith analogies r eta rs t at i t a e t e essa e re ea i f l to the a ie ce. e riter f a i str cti al essage is c cer e it all f this a i a iti
such atters as the re i s lear i experience f t e i te e a ie ce a t e lear i skills they possess; the str ct re f t e i f r ati to e co icate and ho it relates to infor ation already learned by the intended audience; the nu ber and choice of exa ples that should be included in the essage in order to ensure that all (or at least ost) of the intended audience ill understand and learn; the size of 'step' of ne infor ation that the intended audience is capable of taking before it beco es necessary to engage in practice and reinforce ent activities; the a ount and type of practice that should be provided in order to facilitate the desired learning; the criteria that should be applied to judge whether
35 2 Audiovisual Materials Development
the learn ing tasks have been adequately performed; the remedia l messages that must be prepared i n advance to cater for those who do not demonstrate complete learn ing success straight away, etc.
