Today the standardized system, being followed in the field of vocational training, is called as the four step method. It is originated from the German Philosopher and Educationist Herbert. He gave new ideas about teaching method.

Herbert’s ideas were later on put into use for teaching technical subject as the following four step method

• Preparation (introduction / why.)

• Presentation (development/ demonstration.)

• Application (recapitulation / imitation.)

• Test/evaluation (Consolidation / repetition)

Thereafter in Germany, USA, and other advanced countries the above Four Step method has been followed. Today this method is considered as one of the effective methods for skill training. Now let us go in detail about what exactly to be considered by each step of this method.