In this paper, a method is proposed to education of starting characteristics and stationary characteristics of three phase induction motors based on a direct numerical analysis. At first, a mathematical model is presented to three phase induction motors. Secondly, program codes in C language are shown to simulation studies with results obtained by the program codes. Finally, the results obtained in this paper are shown to the effectiveness of the proposed method to education of starting characteristics and stationary characteristics of various three phase induction motors.