ABSTRACT
A wealth of research and development has been done in the realm of instructional message design. Messages are designed for a specific audience and to fulfill a variety of purposes: to communicate information, to entertain, to persuade, to calm, to provoke, and to educate. A critical mistake in the instructional design and technology process is to neglect the mindful design of the message presentation until very late in the process. Designers must carefully consider needs and learner capabilities before mindlessly adopting the latest trends which have the potential to become tomorrow’s notable non-examples. Message design that incorporates R. E. Mayer principles may utilize multiple forms of media to represent concepts through words, images, motion, audio, and more. The instruction was designed to include everything the learners needed to diagnose the case by providing textual descriptions of each animal’s symptoms, an image of the animal, and the correlating lab report data.
