1. Describes about idea&concrpts by involve trainees and learn by doing.
2. Worker must know that before what they can perform job.
3. Worker should know about how to improve performance.
4. It information is very workwe whold be nice for to know but it is not necessary to perform duties.
5. If workers do not know or not understand, the manager should be repeat ideas&concept for learn better when material is meaningful and related.