陳琪瑤CHI-YAO CHEN2014-10-272014-10-272005-06-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/11352建構主義教學策略數學學習ConstructivismInstructionalStrategyMathematics learning關鍵概念面質教學策略對國小四年級學生分數概念改變及數學成就之影響The Influence of Teaching Confrontation Style on Key Concepts of Elementary School Students