We propose a learning material for high-school students to understand the mechanism of solar eclipses and explore them from various viewpoints as a STEM topic. The purpose of this material is not to predict solar eclipses accurately, but the prediction error is small, which may provide the students the value of our material. In the next Course of Study, a new subject called the explorations in Math and Science will be launched. We expect that our material can be used there.

本研究は，JSPS科研費JP17H00820の助成を受けたものである。