What is the article mostly about? a. A device that is as small as a mouse. b. Macintosh computers. c. An invention that changed the way computers were used. d. The work of Douglas Engelbart.

According to behaviorism, instruction should provide necessary stimulus in order for learners to produce desired response. it is important that the learner must know how to execute the proper response under the required conditions in order to produce the desired response (ertmer & newby, 1993). instruction should provide learner with opportunities that the learner practice to elicit the desired outcome.