Department of Mathematics and Information EducationCollege of Science

• Main Authors: He, Ming-Fang, 何明芳
• Other Authors: Chang Ing-Jye
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/kq796b

碩士 === 國立臺北教育大學 === 數學暨資訊教育學系(含數學教育碩士班) === 100 === 　　This study was designed to show the teaching material context and the teaching material structure of decimal concept of four elementary school mathematics textbooks (A, B, C and D), provide when to teach and how to teach thinking framework.With the concept map, the study principally applies content analysis to the textbook to expose the teaching activities of the context to render the teaching material structure. 　　The results of this study are as follows: 　　From teaching material context , the decimal concept materials of A, B, C, three versions is distributed from sixth to twelfth book, D version end early in the eleventh book. From the sixth book, the four versions are beginning to recognize a decimal, but slightly different in the two decimals to three decimal places materials. A, B version understand the decimal symbol in the seventh book , and understand operator symbols in the eighth book. C, D version understand the decimal symbol and the operator symbol in the same time. In addition, the B version of the estimate course arrangements in the ninth book. All of four version respectively show multiply and divide operations in the tenth-eleventh book. A, B, C version of the book show the summary of four operations, the D version is not scheduled. 　　From teaching material structure , the introduction of decimal in four versions are from the situation of continuous quantity, but the reference is slightly different. The view of split synthesis and unit fractional synthetic establish the meaning of decimal . The view of the multi-unit system develop the decimal structure. A, C version provide different scenarios of continuous quantity situations. B version adds the discrete single situations. D version also adds the discrete situations. Four versions eventually from the situation, carry out the decimalabstract operational thinking, but provided a slightly different situation and stressed that the decimal point of view. 　　The research results point out the findings of the framework is valuable in producing decimal mathematics textbook.