According to Gagne, Briggs, and Wager(1988), there are nine events of instruction that should occur in each learning activity: (1) gaining attention, (2) informing the learner of the objective, (3) stimulating recall of prerequisite learning, (4) presenting the stimulus material, (5) providing learning guidance (6) eliciting the performance, (7) providing feedback about the performance, (8) assessing the performance, and(9) enhancing retention and transfer.