A project based learning (PBL) lesson, in collaboration with companies that provide local production for local consumption, was carried out and the learning effects of this PBL in relation to consumer education were measured. Students sold local vegetables and held an exhibition displaying their activities. During the class, the students raised awareness regarding the importance of consumer education, became highly aware of the problem of a consumer society, and began changing their consumption habits. Specifically, the students gained knowledge regarding the pre- stage of consumption, such as production and distribution. Regarding prosumer education, the result indicated that the program had a significant learning effect on students.