References

1
Kyouiku Kihon Hou [Fundamental Law of Education] (2006).
2
Shakai Kyouiku Hou [School Education Law] (2010).
3
Gakkou Kyouiku Hou [Social Education Law] (2009).
4
Ministry of Education, Culture, Sports, Science, and Technology. (2014). Gakkou kihon chousa [Basic survey on schools]. Tokyo: Author.
5
Ministry of Education, Culture, Sports, Science, and Technology. (2014). Gakkou kihon chousa [Basic survey on schools]. Tokyo: Author.
6
Ministry of Education, Culture, Sports, Science, and Technology. (2014). White paper on education, culture, sports, science, and technology. Tokyo: Author.
7
Statistics Bureau and Statistical Research and Training Institute. (2016). Nippon toukei nenkan 2016 [Japan statistical yearbook 2016]. Retrieved from http://www.stat.go.jp/english/data/nenkan/index.htm
8
Statistics Bureau and Statistical Research and Training Institute. (2016). Nippon toukei nenkan 2016 [Japan statistical yearbook 2016]. Retrieved from http://www.stat.go.jp/english/data/nenkan/index.htm
9
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Shougakkou gakusyuu shidou youryou [Course of study for elementary schools]. Tokyo: Author.
10
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Chuugakkou gakusyuu shidou youryou [Course of study for lower secondary schools]. Tokyo: Author.
11
Statistics Bureau and Statistical Research and Training Institute. (2016). Nippon toukei nenkan 2016 [Japan statistical yearbook 2016]. Retrieved from http://www.stat.go.jp/english/data/nenkan/index.htm
12
Statistics Bureau and Statistical Research and Training Institute. (2016). Nippon toukei nenkan 2016 [Japan statistical yearbook 2016]. Retrieved from http://www.stat.go.jp/english/data/nenkan/index.htm
13
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Shougakkou gakusyuu shidou youryou [Course of study for elementary schools]. Tokyo: Author.
14
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Chuugakkou gakusyuu shidou youryou [Course of study for lower secondary schools]. Tokyo: Author.
15
Ministry of Education, Culture, Sports, Science, and Technology. (2009). Koutougakkou gakusyuu shidou youryou [Course of study for upper secondary schools]. Tokyo: Author.
16
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching elementary school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1261037.htm
17
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching elementary school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1261037.htm
18
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
19
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
20
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Shougakkou gakusyuu shidou youryou [Course of study for elementary schools]. Tokyo: Author.
21
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Chuugakkou gakusyuu shidou youryou [Course of study for lower secondary schools]. Tokyo: Author.
22
Ministry of Education, Culture, Sports, Science, and Technology. (2009). Koutougakkou gakusyuu shidou youryou [Course of study for upper secondary schools]. Tokyo: Author.
23
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
24
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
25
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
26
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
27
Ministry of Education, Culture, Sports, Science, and Technology. (2008). Guidelines for teaching junior high school (English version). Retrieved from http://www.mext.go.jp/a_menu/shotou/new-cs/youryou/eiyaku/1298356.htm
28
Japan Society of Mathematical Education. (2010). Journal of Japan Society of Mathematical Education, 92 (11). Tokyo: Author.
29
Saruta, Y. (2010). Ronri-teki-shikou ni motozuita kagaku-teki-hyougen-ryoku ni kansuru kenkyu [Study of scientific expression based on logical thinking]. (Doctoral dissertation). Hiroshima University, Hiroshima, Japan.