This paper outlines four principles for preparing multimedia instructional sequences and, where necessary, the experimental methods for applying the principles successfully. Covered first are the criteria for good terminology for unfamiliar objects, actions, and situations, with methods for deriving such terminology. In the next section guidelines…

Recommending that every state increase the duration and intensity of academic learning time (ALT) in schools, this working paper provides a rationale, discusses related research, offers guidelines for selecting and implementing activities, and describes actions schools can take to implement change. In the discussion, duration refers to the total…