Console-operation skill is procedural knowledge of control panel actions. The console operator must select appropriate sequences of steps (e.g., setting dials, pressing buttons, etc.) as mandated by desired goals and subgoals. A computer-based training (CBT) environment can simulate an environment where knowledge acquisition is efficiently and effectively achieved. In the training of console-operation skill, a CBT environment can simulate control-panel responses and device actions while providing instructional support. The instructional support delivered during practice consists of a set of intervention strategies. This paper discusses an ongoing investigation of CBT approaches in the acquisition of console-operation skill. Two variables of the intervention include the content of feedback and the timing of feedback. Preliminary results from a laboratory experiment suggest that feedback which elaborates on the goal structure of the console-operation skill is more effective than feedback that simply corrects errors. (Contains 42 references.) (Author/JLB)