New teaching materials of astronomy using the webcast of the solar eclipse-Realization of the earth in the space--

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In the science education, the characteristic of astronomy is that the scale of phenomena is huge. Students must move their viewpoints to the space far away from them when they study the astronomical phenomena. The acquisition of the concept which they can move their viewpoint is important not only to the science education but also to their growth. However, the educationist thought that it is difficult for children to acquire the concept.Therefore, we developed and practiced the following teaching materials. One of them is the material which the students can study about the relative positions of the earth, the venus and the sun using the webcast of the transit of the venus. The other is the material which they can study about the relative positions of the earth, the moon and the sun using the all sky webcast of the solar eclipse.The former is the material which the students can calculate an average distance between the earth and the sun (1 Astronomical Unit) from two images obtained at distant observing sites. In that case, the students move their viewpoints to the space of the solar system. The latter is the material which the students can have a virtual experience of the solar eclipse using real time and all sky projection on the planetarium dome. Almost people can feel the shade of the moon when they observe the total or annular solar eclipse. After examinees experienced the virtual solar eclipse, almost of them could feel the shade of the moon and could move easily their viewpoints to the space.