List VOL.5 (6) NO.1 (3) NO.2 (3) 【Research Article】  Using Dynamic Representations to Strengthen Understanding of Linear Functions among Seventh Graders      Author:Feng-Lin Lu, Kin Hang Lei, Shu-Chun Hsiao Research Article 【英文】  Study to Identify Length Relationships of a Cube in Perspective by Junior High School Students with Different Levels of Geometric Thinking      Author:Chia-Tsu Li, Yuan Yuan Research Article 【中文】  Investigation of Ninth Graders’ Spontaneous Probabilistic Concepts in Pop Pretests and Problem Posing      Author:Wei-Chang Shann, Che-Yu Hsu, Fei-Ching Chen Research Article 【中文】