5. Training the collaborative nature of students.
2.3. Syntax of Learning Model
There are seven steps of PBL. The seven steps of PBL model was validated by experts judgment and measured by Aiken coefficient significantly (0.796), also this syntax e reliable to be implemented in vocational learning process. The seven steps, consisting of: (1) the formulating the expected learning outcome, (2) understanding the concept of the teaching materials, (3) skills training, (4) designing the project theme, (5) making the project proposal, (6) executing the tasks of projects and (7) presentation of the project report.
Learning syntax is a stage or phase that must be done in learning. With syntax, the flow of learning activities becomes clear and structured. The syntax of the project based learning learning model is as follows.
1. Determine basic questions Before entering the material, the teacher should give basic questions related to the material to be studied. These questions can be packaged in case studies in the real world followed by more in-depth research.
2. Drafting the project planning design Drafting the project design is collaborative. That is, cooperation between teachers and students. This design contains a number of points, such as rules of play, activities, and presentation.
3. Make an activity schedule After the teacher and students have compiled the design of the project planning, proceed with making an activity schedule.
An example of the activity schedule is as follows.
 • Determine the timeline of the work
• Determine the deadline for the work
• Determine the new plan to complete the project
