Abstract: “In the subject of electric power technology for electrical high school second year students in technical high schools, we think it is difficult to learn the contents of power generation with textbooks and limited class hours. In particular, learning the content of textbooks on hydropower, thermal power, nuclear power generation, and the content of power transmission would be extremely difficult. Therefore, in this study, a questionnaire on power generation and transmission was conducted before the class began. In order to examine the knowledge and understanding level of students who learned only with textbooks, we conducted a questionnaire in a free description format. After the class, the Internet was also used to conduct a questionnaire in the form of free description on the results of learning about the power generation and power transmission using the Internet. Rather than studying only with textbooks, it was reported that students were able to understand many more photos and video”

Keywords: Text mining, Co-occurrence, Network, Electric Power, Technology.