Due to the tremendous enhancements in the
capabilities of mobile devices in recent years and
accessibility to higher bandwidth mobile internet, the use
of online multimedia learning resources on mobile devices
is increasingly becoming popular. Improvements in
battery capacity have not matched the same advancements
compared to other features of mobile devices. Limited
Battery power is introducing a significant challenge in
making better use of online educational multimedia
resources. Online Multimedia Resources drains more
battery power as a result of higher amount of wireless data
transfer and therefore limiting learning opportunities on
the move. Many power saving multimedia adaptation
techniques have been suggested. Majority of these
techniques achieve battery efficiency while reducing
multimedia quality. So far, however, to the best of our
knowledge no previous effort has considered the factor of
learning efficacy in multimedia adaptation process.
Existing adaptation techniques are susceptible to
information loss as a result of quality of reduction. Such
loss affects the learning content efficacy and jeopardizes
the learning process. In this paper, we recommend a novel
power save educational multimedia adaptation approach
that considers the learning aspect of multimedia in the
adaptation process. Our technique enables learning for
extended duration by battery power saving without
putting the learning process at risk. Efficacy of entire
learning resources is managed by not allowing any part of
the learning multimedia to be delivered in a quality that
will negatively affect the learning outcome. We also
present a framework that guides the implementation of
our approach followed by description of our prototype
application that uses educational multimedia metadata
implemented in semantic web technologies.