Learning One-Digit Decimal Numbers by Measurement Activity

Astuti, Puji (2013) Learning One-Digit Decimal Numbers by Measurement Activity. In: Zulkardi(Eds). The First South East Asia Design/ Development Research (SEA-DR) International Conference, April 22nd-23rd, 2013, Unsri, Palembang.

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    It is a prerequisite for students to have an understanding of the concept of fractions to learn decimals. Also, modelling the decimals, like using the number line, supports students to see where the decimal numbers are among the whole numbers and the decimal numbers itself. Therefore, this study aims to support children’s understanding of the meaning of decimals by seeing: 1) the tenths and hundredths of decimal numbers by the context of measurement; 2) the representation of decimal numbers on number line. With this aim, design research method is used in this study. We develop an intervention to improve conventional teaching approaches in decimals through instructional activities on measurement activity and game context. By the measuring activity, students are hoped to be able to relate tenths and hundredths to one-digit and two-digit decimals. Besides, the number line through game activity is hoped to contribute to students’ development of decimal concepts. The instructional activities are designed and compacted in the Hypothetical Learning Trajectory (HLT). The HLT was carried out in two cycles involving the 4th grade of elementary school students. Data of the learning activities collected from videotaping along teaching process, field notes by the researcher, and the completed learning worksheet are used to refine the HLT. This article describes and discusses the learning activity of 2 meetings of cycle 2 of our focus group students of grade 4 elementary school in Surabaya: SDIT Al Ghilmani. The data indicated that the learning activities promoted the students’ understanding of one-digit decimal numbers. Keyword : measurement, decimal numbers, number line

    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: Prof. Dr. Zulkardi MIKomp.,MSc.
    Date Deposited: 22 Jul 2013 13:22
    Last Modified: 09 Nov 2013 21:36
    URI: http://eprints.unsri.ac.id/id/eprint/2441

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