Abstract
The writer describes a Project Based Learning subject for students of master first grade as a full-time employment teacher Tsukuba University graduate school. In this subject five projects which has four or five students and they try to develop the agreement for their customers, managed to develop system and carry it out till they hand the system to customer. The writer carries out the education that a project needs and does a device to let students learn practice power. It is described about results and problems to be solved that student projects and the writer got till now.