At the 28th Workshop on Circuits and Systems, which was held in Aug. 3rd to 4th at Awaji Yumebutai International Conference Center, Assoc. Prof. Tsutsui was in charge of a topic of Summer Research Trial for Elementary and Junior-High Students, with Dr. Yuki Arikawa (NTT) and Prof. Jaehoon Yu (Osaka University). The topic was “Calculator design using logic ICs – Let’s make your own calculator”. The topic and its content is same as the previous version, which was organized by Prof. Takeshi Matsumoto (Ishikawa National College of Technology) and Dr. Kohei Hosokawa (NEC).