각크기와 거리에 관한 천문학 수업안 개발: 측정과 모형 적합

Abstract

I introduce a lesson plan on mathematical relation between angular size, physical size, and distance, which would be helpful for understanding distance scale measurement methodology applied in astronomy. The developed lesson plan is focused to enhance the basic inquiry ability: measurement and data expression, and to lead understanding of model fitting used in data analysis. The online document and spreadsheet program is used for collaboration, therefore the lesson plan allows cooperative learning opportunities even with remote classes. An example of applying the developed lesson plan to university undergraduate students is also introduced. Students showed positive attitudes on the cooperative learning, and made suggestions to further improve the activity. The content of the developed lesson plan was introduced to earth science teachers, who were asked to design their own lesson plans applicable to secondary school students. As a result, teachers suggested various lesson plans that can be used either in regular classes or in after school activities at different grade level. Considering this, the lesson plan is expected to be useful as one of the rare hands-on activity with the theme of astronomy that is applicable to various students.