鄭宏文2014-10-272014-10-272011-09-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/10538國小天文科學太陽經緯儀「太陽經緯儀」在國小天文科學教育上的應用The "Sun Altazimuth" as a Solar Motion Demonstor and Its Applications in Science Education