Abstract

The purpose of this study was to analyze the connection between students' errors and prior knowledge as an attempt to design an efficient teaching method in decimal computation. A survey on decimal computations was conducted in two 6th grade elementary school classrooms. Error patterns on decimal computations were analyzed and clinical interviews were conducted with 8 students according to their error patterns. Main errors resulted from the insufficient understanding of prior knowledge such as place value, connection between decimals and fractions, meaning of operations, and computation principles of fractions. In order to help students overcome such obstacles, a teaching experiment was designed in a manner that strengthens a profound understanding of prior knowledge related to decimal computations, and connects such knowledge to actual decimal calculations. This study showed that well-designed lesson plans with base-ten blocks might decrease students' errors by helping them understand decimals and connect their prior knowledge to decimal operations.

주제어

#소수계산오류   #수학적 연결   #교수실험   #십진블록  

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1. Chung, Young-Woo ; Kim, Boo-Yoon ; Pyo, Sung-Soo 2011. "A study on teaching the system of numbers considering mathematical connections" 한국수학교육학회지. 시리즈 E: 수학교육논문집, 25(2): 473~495  원문보기 상세보기
2. Roh, Eun Hwan ; Jeong, Sang Tae ; Kim, Min Jeong 2014. "A Study on the Analysis and Correction of Error for the Gearwheel-involved Problem" 한국수학교육학회지. 시리즈 E: 수학교육논문집, 28(1): 1~17  원문보기 상세보기