“…A good android learning media is marked by the use of visual representation elements (Kumar & Goundar, 2019). The use of appropriate visual representations such as pictures, graphs, diagrams, and others in science learning can help make it easier for students to understand concepts (Evagorou et al, 2015;Inaltekin & Goksu, 2019;Rau, 2016;Tytler et al, 2020;Yoon et al, 2021). However, many previous studies show that until now learning about the circulatory system is still taught using lecture and discussion methods and pays little attention to the use of learning media that is in accordance with the characteristics of the circulatory system concept which requires concept visualization (Fajar, 2016;Novianto et al, 2018).…”