1. (4) NGSS: http://www.nextgenscience.org/next-generation-science-standards/ http://www.nier.go.jp/shirouzu/translation/ngss-first.pdf (in Japanese)
2. (5) National Research Council of the National Academies: “A Framework for K-12 Science Education”, The National Academies Press (2012)
3. (6) H. Shirahama, H. Hosoda, K. Takeno, and T. Tamaoka: “Implementation of subjects related with natural science based on the K-12 Science Education”, The Papers of Technical Meeting on Frontiers in Education, IEE Japan, FIE-15-032 (2015) (in Japanese)
4. (7) H. Shirahama, T. Fukuyama, S. Endo, and T Yamaoka: “The Preliminary Implementation of an Educational Program for Cooperation among Subjects in the Area of Natural Science”, JSTE, Vol. 58, No. 1, pp. 1-10 (2016) (in Japanese)
5. (8) T. Deno and N. Yasuda: “Causes That Bring about the Loss of Interest in Science Classes”, Bull. Mukogawa Women's Univ. Humanities and Social Sci., Vol. 51, pp. 9-17 (2003) (in Japanese)