Beginning in the 1950s, and particularly during the 1960s and 1970s, a number of leaders in thefield of education started discussing instructional technology in a different way – rather thanequating it to media, they discussed it as being a process
Evolution of the human mind and also andragogy, being adult pedagogy, makes a huge difference if it's not in place. Things like making sure the learner knows the objectives or what they'll learn from the outset is critical in instructional success.