List VOL.1 (7) NO.1 (4) NO.2 (3) 【Research Article】  Integrating 3D Visualization Tools into Teaching Surface Area in Elementary School Classrooms: An Example of Google SketchUp      Author:Pao-Nan Chou, Chong-Yan Wu Research Article 【中文】  Learning the Area of Parallelograms with Worked Examples: The Influence of Metacognitive Questions      Author:You-Jia Huang, Huei-Min Wu, Hui-Chuan Huang, Ning-Chun Tan, Shyh-Chii Tzeng, Chien-Ming Cheng Research Article 【中文】  Analyzing College Students’ Geometric Investigation within the Dynamic Geometry Environment      Author:Shun-Yuan Xu, Cheng-Te Hu Research Article 【中文】  Enhancing In-service Mathematics Teachers’ Professional Knowledge with an HPM Approach as Observed in Teachers’ Reflections      Author:Jim-Hong Su, Jia-Ming Ying Research Article 【英文】