National Institute of Technology, Sendai College, Hirose Campus has been conducting a general skills (GSs) survey using external standardized tests in Japan since 2014. The results showed that our students' skills related to teamwork, planning, and practice were inferior to the average of university students and needed to be strengthened. Therefore, in the academic year 2020, we arranged a cross-course-typed (integrated) PBL as one of the experimental subjects in the 4th grade, in which students with different specialties were grouped together to solve practical problems and try to improve their skills in team activities, planning, and practice. Through this cross-course-typed (integrated) PBL class, the results of the GSs standardized test that they took improved. By comparing the test results, it was found that there was a significant improvement in the skills of team management, planning solutions, and self-control after the cross-course-typed PBL. In addition, the students conducted self-assessment before and after the integrated PBL class in 2020 and 2021, and improvement in all the targeted skills was observed. The peer assessment and teacher assessment were generally close to the selfassessment, and it was found that the integrated PBL class led to the improvement of students' skills.
