1. So that students can study the various knowledge sources themselves.
2. To help the students express creativity.
3. To make the students know the work systematic a step.
4. So that students see the value of doing activities in place, which helps to see the value of the work in the end.
5. To make the students can work with other people with self-confidence, responsibility.
6. To develop the students ability in planning. Operations and achieve the goal.
7. To develop the students to be creative and to work effectively.
8. In order to make the students to think and evaluation of their work