Feasibility of Electronic Magazine Learning Media on the Subtopic of Abnormalities and Disorders in the Circulatory System for 11th-Grade High School Students

The rapid development of information and communication technology has influenced the field of education, which can be utilized in the learning process through the application of technology in learning media usage. Abnormalities and disorders in the circulatory system are complex subtopics involving interconnected organs in the blood circulation process, occurring inside the body and not directly observable. Therefore, media are necessary to visualize these subtopics. One learning media that can be utilized is electronic magazines. This research aims to assess the suitability of electronic magazines as a learning media for abnormalities and disorders in the circulatory system subtopics. The study employs the Research and Development method with five stages: problem identification, data collection, product design, design validation, and design revision. Data analysis utilizes Aiken's V Content-validity Coefficient. The validation results of the electronic magazine learning media for abnormalities and disorders in the circulatory system subtopics, assessed across four criteria—format, content, language, and presentation—yielded a coefficient value of 0.91, indicating very high validity. Therefore, it can be concluded that electronic magazines are suitable for use as a learning media for abnormalities and disorders in the circulatory system subtopics.