I am mainly researching the development of science teaching materials that can be used in educational sites. In elementary and junior high school science, especially in elementary school science experiments, most of them are qualitative experiments. For example, when investigating the properties of things that are “invisible” to the human eye, such as light and magnetic force, we use relative terms such as “bright” and “strong.” Even in qualitative experiments that rely on bodily sensations, we can “see” the nature of things. However, if we can compare this experience with numerical values such as “how bright” and “how strong”, we will be able to “see more” what we “see” until now. Experiments that compare numerically like this are called quantitative experiments. When we can “visualize” the properties of things with these educational materials, we are sure that the observer’s eyes will have a higher resolution and be moved by the wonder and charm of the natural world. We are conducting research on the development of teaching materials that can be “more visualized” in various fields of science education.