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Journal : Jurnal Pendidikan MIPA

Problem Solving Skills of Mathematics Education Students with Lack Number Sense Ability Arjudin, Arjudin; Turmuzi, Muhammad; Kurniati, Nani; Wulandari, Nourma Pramestie
Jurnal Pendidikan MIPA Vol 25, No 1 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Abstract: Problem-solving in mathematics is a fundamental skill that must be mastered by individuals. However, previous research indicates that students' problem-solving abilities tend to be moderate to low. Many factors contribute to this, including the factor of number sense ability. The objective of this study is to describe how number sense and problem-solving skills are used by mathematics education students with low number sense ability in solving linear programming problems using the simplex method. This research is qualitative descriptive involving 36 third-year mathematics education students as participants. Subjects were selected using purposive sampling technique based on a number sense ability test to identify those with low number sense ability. Participants were given an advanced test involving linear programming problems solved using the simplex method. The results indicate that mathematics education students with low number sense ability struggle to solve problems accurately. Stages of problem-solving that were not performed effectively included gathering information, planning, and implementing the plan. Furthermore, students did not engage in the reviewing stage. Moreover, students were not flexible in manipulating numbers, especially when dealing with large numbers. As a result, more time was required for computations, and the iteration process in the simplex method could not be effectively completed.        Keywords: linear programming, number sense, number sense ability, problem solving, simplex method.DOI: https://dx.doi.org/10.23960/jpmipa/v25i1.pp103-115
Co-Authors Al Kautsar, Karin Selma Amrullah Amrullah Amrullah Amrullah Anis Suraida Safitri Anjani, Tik Kun Anton Budiharjo Anugrah, Inayah Arjudin Arjudin Arjudin Arjudin Arjudin Awal Nur Kholifatur Rosyidah Baidowi Baidowi Baiq Dian Arianingsih Baiq Rachmawatin Ramadhana Deni Hamdani Dudi Septiadi Dwi Novitasari Dwi Novitasari Faishal Wahiduddin, Faishal Firdaus, Atiqa Hadiyanto, Fahrur Rozi Hapipi Hapipi Hasnawati, Anida Hidayah, Amanatul Hijriati, Awwalus Sanatil Junaidi Junaidi Junaidi Junaidi Junaidi Junaidi KETUT SARJANA, KETUT Kurniawan, Eka Laila Hayati Laila Hayati, Laila Lu’luilmaknun, Ulfa Mawarni, Ririn Mohammad Archi Maulyda Muhammad Erfan Muhammad Erfan Nada, Lisa Katun Nani Kurniati Nani Kurniati Ni Made Intan Kertiyani nurhaolida nurhaolida Nurhikmah Nurhikmah Nurul Hikmah NURUL HIKMAH Nyoman Sridana Nyoman Sridana Primajati, Gilang R Radha Rahmatiah Ardianti, Arifah Ratih Ayu Apsari Ratih Ayu Apsari Ratih Ayu Apsari Renata, Zabina Rhomiy Handican Rosidik, Izam Salsabila, Nilza Humaira Sanuriza, Irna Il Sariyasa . Soepriyanto, Harry Sorayya, Hilalatus Sri Subarinah Sri Subarinah, Sri Sripatmi Sripatmi Sripatmi Sripatmi Sripatmi, Sripatmi Sudi Prayitno Sudi Prayitno Syahrul Azmi Syahrul Azmi Tabita Wahyu Triutami Triutami, Tabita Wahyu Ulfa Lu'luilmaknun Ulfa Lu’luilmaknun Ulfa Lu’luilmaknun Umar Umar Vivi Rachmatul Hidayati Vivi Rachmatul HIdayati Wahidaturrahmi, Wahidaturrahmi Wardha Tsabita, Dhyah Windari, Surya Safitri Yandika Pratama Saputra Yuliandini, Audi Yulis Tyaningsih, Ratna