Now there is a widespread demand for human resources who can apply Artificial Intelligence (AI) to problem solving. Kanazawa Institute of Technology has a major goal of making it possible for students to naturally use AI to solve problems. Therefore, in 2019, the university opened “AI Basics” for first-year students. The authors tried to see how AI was applied to the problem solution of Project Based Learning (PBL) education in two subjects, Project Design I (PD I) and “AI Basics”, which the author was in charge of. The purpose of this study is to understand the current situation of AI utilization in the first year and to find out some reflections to subjects in 2020. In practice, many PD I students had not yet taken the AI Basics, so the author gave supplementary lectures on AI and encouraged the use of AI for solutions. Also, in “AI Basics”, in the group activity of the last lesson, the author asked students to use AI just learned as a problem solution. The correspondence between each solution and the AI utilization categories were summarized in tables for understanding the current situation. As a result, it was confirmed that AI was widely used for problem solving in both subjects. In particular, the students learned “AI Basics” could propose an appropriate solution in a short time. This means lesson effects of “AI Basics” exist in problem solutions.