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Programmed Experimental Teaching Exercises have been used for laboratory instrument familiarization and for demonstration of basic circuit phenomena in conjunction with a first course in circuit theory for electrical engineering students. The exercises were used as part of the normal classroom presentation and covered such subjects as signal waveforms, time constants, superposition, impedance, resonance, power, Bode plots, and dependent sources. The students confirmed that the exercises materially strengthened the course and were of definite help in understanding basic concepts. The exercise on the use of the dual-trace oscilloscope, as an example of the utilization of these exercises for instrument familiarization, provided sufficient theory and training to enable the students to confidently use the oscilloscope as a measuring instrument.