FROM SAMPLE TO POPULATION: THE USE OF DOT PLOT TO SUPPORT THE EMERGENCE OF INFORMAL INFERENTIAL REASONING

Sri Padmi, I Gusti Ayu Russasmita (2015) FROM SAMPLE TO POPULATION: THE USE OF DOT PLOT TO SUPPORT THE EMERGENCE OF INFORMAL INFERENTIAL REASONING. In: The Third South East Asia Design/Development Research International Conference, 18 Apr - 19 Apr 2015, Palembang.

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    Abstract

    The need for statistically literate society brings the need to broaden the scope of statistics education beyond mere numbers, formulas and calculations. The students need to be able to comprehend the world around them statistically. The difficulty the students experience during inferential statistics becomes another problem to tackle. Therefore, a new topic called Informal Inferential Reasoning arises; centering around introducing inferential statistics in early education by focusing on informal aspects of it. A set of learning activities is designed through Realistic Mathematics Education (RME) approach to support 7th grade students in developing this reasoning. This paper describes a specific aspect of this study, which is the use of dot plots. Dot plots is a type of data representation that is rarely used in statistics education in Indonesia. However, existing researches have shown that dot plot is helpful to help students analyzing graph visually. Design research was used as the research approach. Six students of the 7th grade of Laboratory Junior High School of State University of Surabaya (SMP Lab UNESA) were involved in the teaching experiment. The results show that dot plots do help students to see data as an aggregate by visually exhibiting the characteristics of the data set, thus helping the students when comparing sample to population or vice versa; a process that is an inherent part of informal inferential statistics. Keywords: informal inferential statistics, dot plots, realistic mathematics education, design research.

    Item Type: Conference or Workshop Item (Paper)
    Subjects: L Education > L Education (General)
    Divisions: Faculty of Teacher Training and Science Education > Department of Mathematics and Sciences Education > Mathematics Education
    Depositing User: DR. Ratu Ilma
    Date Deposited: 13 Aug 2015 11:11
    Last Modified: 13 Aug 2015 11:11
    URI: http://eprints.unsri.ac.id/id/eprint/5753

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