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Design and Development of NumFlex Application for Number System Learning: A DDR Approach with Fuzzy Delphi Method

Author

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  • Maisarah M.Yusap

    (Faculty of Education, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia.)

  • M. Khalid M. Nasir

    (Faculty of Education, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia.)

Abstract

This study presents the design and development of the NumFlex App, an interactive educational tool aimed at improving students’ understanding of number system conversions (binary, octal, decimal, hexadecimal) in secondary schools. The objective was to obtain expert agreement and views on the app’s content, interaction, and interface design. Using the Fuzzy Delphi Method (FDM) and a 7-point Likert scale, responses were collected from seven experts in various fields of education. The data were analyzed using triangular fuzzy numbers, and the ranking of each variable was determined through the defuzzification process. The study followed a Design and Development Research (DDR) methodology, starting with a Nominal Group Technique (NGT) to identify learning challenges. The findings demonstrated 100% expert consensus, with key elements such as content clarity (defuzzification value 0.95714) and interface design (defuzzification value 0.97143) ranked highest. The results confirm that NumFlex successfully integrates clear, pedagogically sound content with intuitive interactive features, making it an effective learning tool. Future research should focus on expanding the app to additional platforms and exploring its integration into the Malaysian national curriculum through collaboration with the Ministry of Education Malaysia (KPM) to broaden its educational impact.

Suggested Citation

  • Maisarah M.Yusap & M. Khalid M. Nasir, 2024. "Design and Development of NumFlex Application for Number System Learning: A DDR Approach with Fuzzy Delphi Method," International Journal of Research and Innovation in Social Science, International Journal of Research and Innovation in Social Science (IJRISS), vol. 8(9), pages 1904-1921, September.
    • Handle: RePEc:bcp:journl:v:8:y:2024:i:9:p:1904-1921
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    References listed on IDEAS

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    2. Norman Dalkey & Olaf Helmer, 1963. "An Experimental Application of the DELPHI Method to the Use of Experts," Management Science, INFORMS, vol. 9(3), pages 458-467, April.
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