In this study, the ethical perspectives required in the development of teaching materials in the field of biology in elementary and junior high school science were examined. Based on the descriptions of 20 elementary school science textbooks (from 5 publishers) and 15 junior high school science textbooks (from 5 publishers), the ethical perspectives for developing teaching materials related to the contents were listed. Bioethics was mentioned in all the contents. In the case of the teaching materials related to humans and human life, ethical perspectives include privacy, personal information, copyright, etc. were mentioned. In the development of teaching materials, it is necessary to pay attention to these ethical perspectives. Therefore, it was suggested that for teachers or teacher training students, the process of developing teaching materials itself can be an opportunity to learn about ethics.