We apply andragogy concept from

1.

Self-concept:
 

As a person matures his self concept moves from one of being a dependent personality toward one of being a self-directed human being

2.

Experiene:
 

As a person matures he accumulates a growing reservoir of experience that becomes an increasing resource for learning.

3.

Readiness to learn:

As a person matures his readiness to learn becomes oriented increasingly to the developmental tasks of his social roles.

4.

Orientation to learning:

As a person matures his time perspective changes from one of postponed application of knowledge to immediacy of application, and accordingly his orientation toward learning shifts from one of subject-centeredness to one of problem centredness.

5.

Motivation to learn:

As a person matures the motivation to learn is internal