Definitions of Instructional Design
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Definitions of Instructional Design Instructional Design as a Process: Instructional Design is the systematic development of instructional specifications using learning and instructional theory to ensure the quality of instruction. It is the entire process of analysis of learning needs and goals and the development of a delivery system to meet those needs. It includes development of instructional materials and activities; and tryout and evaluation of all instruction and learner activities. Instructional Design as a Discipline: Instructional Design is that branch of knowledge concerned with research and theory about instructional strategies and the process for developing and implementing those strategies. Instructional Design as a Science: Instructional design is the science of creating detailed specifications for the development, implementation, evaluation, and maintenance of situations that facilitate the learning of both large and small units of subject matter at all levels of complexity. Instructional Design as Reality: Instructional design can start at any point in the design process. Often a glimmer of an idea is developed to give the core of an instruction situation. By the time the entire process is done the designer looks back and she or he checks to see that all parts of the "science" have been taken into account. Then the entire process is written up as if it occurred in a systematic fashion. Instructional System: An instructional system is an arrangement of resources and procedures to promote learning. Instructional design is the systematic process of developing instructional systems and instructional development is the process of implementing the system or plan. Instructional Technology: Instructional technology is the systemic and systematic application of strategies and techniques derived from behavioral, cognitive, and constructivist theories to the solution of instructional problems. Instructional technology is the systematic application of theory and other organized knowledge to the task of instructional design and development. Instructional Technology = Instructional Design + Instructional Development Instructional Development: The process of implementing the design plans. A Brief History of Instructional Design Douglas Leigh As a formal discipline, Instructional Systems Design has been a long time in the making. The early contributions of thinkers such as Aristotle, Socrates and Plato regarding the cognitive basis of learning and memory was later expanded by the 13th century philosopher St. Thomas Aquinas who discussed the perception of teachings in terms of free will. Four hundred years later, John Locke advanced Aristotle's notion of human's initial state of mental blankness by proposing that almost all reason and knowledge must be gained from experience. Then, at the turn of the 20th century John Dewey presented several tenets of the philosophy of education which promoted the idea that learning occurs best when married with doing, rather than rote regurgitation of facts. As the 1920's approached, a behaviorist approach to educational psychology became increasingly predominant. Thorndike's theory of connectionism represents the original stimulus-response (S-R) model of behavioral psychology, and was expanded on some twenty years later by Hull in his exposition of drive reduction – a motivational model of behavior which emphasizes learner's wants, attention, and activities. With the Industrial Revolution came an increased attention to productivity, and educational behaviorists during the 1920's such as Sidney Pressey applied mechanized technology to increase the efficiency of the learning process. Though their initial incarnation did not see much use after the Depression, many of the lessons learned research into these teaching machines regarding the delivery of standardized instruction contributed to the instructional media research & development movement of World War II. The advent of the Second World War presented a tremendous instructional dilemma: the rapid training of hundreds of thousands of military personnel. Ralph Tyler's work a decade before WWII indicated that objectives were most useful to instructional developers if written in terms of desired learner behaviors. Armed with this knowledge and the experience of creating standardize methods of instructional delivery using teaching machines, military researchers developed a bevy of training films and other mediated materials for instructional purposes. In part, the United States' heavy investment in training and R&D was credited with the country's victory in the war. With the economic boom that followed, federal dollars followed researcher's desire to better flesh out the underpinnings of learning, cognition, and instruction. The 1950's are characterized by a shift away from the uninformed application of instructional technology to the formulation of theoretical models of learning. The publication of B. F. Skinner's The Science of Learning and the Art of Teaching in 1954 canonized the basic behaviorist principles of S-R, feedback, and reinforcement. As the key element of his theory of operant conditioning, the reinforcement of desired learner responses was also incorporated into Skinner's implementations of programmed instruction. Considered by many the progenitor of contemporary instructional design, programmed instruction emphasizes the formulation of behavioral objectives, breaking instructional content into small units and rewarding correct responses early and often. Another substantial instructional theorist of the 1950's was Benjamin Bloom. His 1956 taxonomy of intellectual behaviors provided instructors a means by which to decide how to impart instructional content to learners most effectively. Advocating a mastery approach to learning, Bloom endorsed instructional techniques that varied both instruction and time according to learner requirements. While this approach provided instructional developers a means by which to match subject matter and instructional methods, Bloom's taxonomy was not in and of itself capable of satisfying the desire of large organizations to relate resources and processes to the performances of individuals. To achieve this researchers in the military's Air Research and Development Command borrowed from Ludwig von Bertalanffy's General Systems Theory of biological interactions to integrate the operations of a wide range of departments, such as training, intelligence, and staffing. Combined with the Bloom's Taxonomy, the systems approach to instructional and organizational development allowed planners and policy-makers to match the content and delivery of instruction in a fashion which considered both super- and sub-systems (the organization as a whole, as well as groups and individuals within the organization). These advances of Skinner, Bloom and von Bertalanffy were usually employed to develop instruction in what was only assumed to be an effective an efficient manner. The formalization of a standardized design process still had yet to be devised. Again it was a crisis that spurred the next evolution of instructional technology – a shift away from an emphasis in the development of instructional programs to one which focused on the design of entire curriculum. Again the crisis was a war, but this time the war was a political one. In 1957 the Soviet Union launched the Sputnik satellite and began the "space race". America was taken by surprise and the government was forced to reevaluate the education system and its shortcomings. Science and math programs were the first to be targeted, and the government employed experts in these fields to bring the content up to date. In 1962 Robert Glaser synthesized the work of previous researchers and introduced the concept of "instructional design", submitting a model which links learner analysis to the design and development of instruction. Interestingly, Glaser's contribution to the current field of instructional systems is not so much in the advancement of his model, but in work concerning Individually Prescribed Instruction (IPI), an approach whereby the results of a learner's placement test are used to plan learner-specific instruction. At the same time Glaser was developing his theories of instructional design and IPI, Robert Mager published his treatise on the construction of performance objectives. Mager suggested that an objective should describe in measurable terms who an objective targets, the behavior they will have exhibited, the conditions or limitations under which they must carry out this behavior, and the criteria against which their behavior will be gauged. As early as 1962 when he published "Military Training and Principles of Learning" Robert Gagné demonstrated a concern for the different levels of learning. His differentiation of psychomotor skills, verbal information, intellectual skills, cognitive strategies, and attitudes provides a companion to Bloom's six cognitive domains of learning. Later, Gagné extended his thinking to include nine instructional events that detail the conditions necessary for learning to occur. These events have long since been used for the basis for the design of instruction and the selection of appropriate media. The mediation of instruction entered the computer age in the 1960's when Patrick Suppes conducted his initial investigations into computer-assisted instruction (CAI) at Stanford University. Developed through a systematic analysis of curriculum, Suppes' CAI provided learner feedback, branching, and response tracking