Since the establishment of the subject in 1999, the objectives and content of the high school information studies course have been revised twice, and the subject has been established as a subject area to be learned by all high school students enrolled in the revised Courses of Study in 2018. In this paper, we examine the educational content of information studies by analyzing the changes in the instructional elements of information studies. We analyzed the correspondence of the instructional elements of in the relevant documents published in 1999, 2009 and 2019. We found that words such as “data,” “design,” “science,” “programming,” “morals,” “manners,” “limits,” and “devices” were new in the instructional elements of “Information I.” In addition, from the instructional elements included in “Information I,” the instructional elements related to programming and data utilization were strengthened, and the three components of “Information Utilization ability” were comprehensively placed in relation to each other.