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All Journal Journal on Mathematics Education (JME) Jurnal Elemen Indonesian Journal of Primary Science Education (IJPSE) Journal on Mathematics Education
Wanty Widjaja
Deakin University
Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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The Use of Contextual Problems to Support Mathematical Learning Widjaja, Wanty
Journal on Mathematics Education Vol 4, No 2 (2013)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.4.2.413.151-159

Abstract

This paper examines the use of contextual problems to support mathematical learning based on current classroom practice. The use contextual problems offers some potentials to engage and motivate students in learning mathematics but it also presents some challenges for students in classrooms. Examples of the use of contextual problems from several primary classrooms in Indonesia will be discussed. Contextual problems do not lend themselves to a meaningful learning for students. Teachers need to engage students in interpreting the context in order to explore key mathematical ideas. It is critical to establish explicit links between the context and  the mathematics ideas to support students' progression in their mathematical thinking.Keyword: Contestual Problems, Context, Mathematical Learning DOI: http://dx.doi.org/10.22342/jme.4.2.413.151-159
COUNTEREXAMPLES: CHALLENGES FACED BY ELEMENTARY STUDENTS WHEN TESTING A CONJECTURE ABOUT THE RELATIONSHIP BETWEEN PERIMETER AND AREA Widjaja, Wanty; Vale, Colleen
Journal on Mathematics Education Vol 12, No 3 (2021)
Publisher : Department of Doctoral Program on Mathematics Education, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.12.3.14526.487-506

Abstract

One pedagogical approach to challenge a persistent misconception is to get students to test a conjecture whereby they are confronted with the misconception. A common misconception about a ‘direct linear relationship’ between area and perimeter is well-documented. In this study, Year 4-6 students were presented with a conjecture that a rectangle with a larger perimeter will always have a larger area. Eighty-two (82) students’ written responses from three elementary schools in Victoria, Australia were analyzed. The findings revealed that Year 4-6 students could find multiple examples to support the conjecture but they struggled to find counterexamples to refute the conjecture. The findings underscored the importance of developing elementary school students’ capacity to construct counterexamples and recognize that it is sufficient to offer one counterexample in refuting a conjecture about all cases. Implications for ­teaching practice to support investigating and testing a conjecture are discussed.
Investigating fraction computation problem-solving among pre-service primary school teachers Pramudiani, Puri; Alyani, Fitri; Dolk, Maarten; Widjaja, Wanty
Jurnal Elemen Vol 10 No 3 (2024): September
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v10i3.27462

Abstract

The ability to solve problems involving fractions is a fundamental aspect of mathematics education. This study explores how Pre-Service Primary School Teachers approach problem-solving in fractional computations. A workbook is designed to support pre-service primary school teachers ' computational thinking in fraction-context challenges. The study employs a qualitative descriptive method encompassing interviews, study documentation, and observation to assess fraction computation problem-solving abilities. Twenty-seven participants were involved in this study. They were first-year students enrolled in the Primary School Teacher Education Department at one of the private universities in Jakarta, Indonesia. The findings reveal a notable outcome in pre-service primary school teachers ' understanding of fraction computation problem-solving, marked by recognizable strategies in their problem-solving approach. This research suggests that designing a series of workbooks containing various strategies in computational fractions and building a strong fractional number sense can help pre-service teachers reduce misconceptions and better understand fraction operations. These findings offer guidance for mathematics teacher education on how to effectively teach and embed the concept of fraction calculations to their future students so that they can only teach procedurally if they understand the meaning of fraction operations.
COUNTEREXAMPLES: CHALLENGES FACED BY ELEMENTARY STUDENTS WHEN TESTING A CONJECTURE ABOUT THE RELATIONSHIP BETWEEN PERIMETER AND AREA Widjaja, Wanty; Vale, Colleen
Journal on Mathematics Education Vol. 12 No. 3 (2021): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

One pedagogical approach to challenge a persistent misconception is to get students to test a conjecture whereby they are confronted with the misconception. A common misconception about a ‘direct linear relationship’ between area and perimeter is well-documented. In this study, Year 4-6 students were presented with a conjecture that a rectangle with a larger perimeter will always have a larger area. Eighty-two (82) students’ written responses from three elementary schools in Victoria, Australia were analyzed. The findings revealed that Year 4-6 students could find multiple examples to support the conjecture but they struggled to find counterexamples to refute the conjecture. The findings underscored the importance of developing elementary school students’ capacity to construct counterexamples and recognize that it is sufficient to offer one counterexample in refuting a conjecture about all cases. Implications for ­teaching practice to support investigating and testing a conjecture are discussed.
Implementasi Proyek Penguatan Profil Pelajar Pancasila untuk Menumbuhkan Karakter Siswa di SDN Jombatan 6 Jombang Fatmawati, Irma Dyah; Rahma Pratiwi, Emy Yunita; Widjaja, Wanty
IJPSE Indonesian Journal of Primary Science Education Vol 4 No 2 (2024): IJPSE
Publisher : Prodi Pendidikan Guru Sekolah Dasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33752/ijpse.v4i2.4189

Abstract

The persisting issue of lacking empathy and environmental awareness among students at SDN Jombatan 6 Jombang—evident in neglected surroundings and substantial waste accumulation—remains a recurring concern. This study aims to implement the Pancasila Student Profile Strengthening Project (English: Projek Penguatan Profil Pelajar Pancasila [P5]) activities to cultivate students’ character and outline execution strategies. Employing a qualitative descriptive approach, this research examined subjects in light of existing phenomena. Participants include the school principal, fourth-grade teachers, all fourth-grade students, and the school’s gardeners. Data collection includes observation, interviews, and documentation, followed by analysis stages of data reduction, presentation, and conclusion drawing, validated through peer examination. The findings illuminate several key points: (1) Teachers orchestrate the Pancasila Student Profile Strengthening Project (P5) at SDN Jombatan 6 Jombang, crafting tailored learning modules that align with the local environment. These modules are accompanied by practical actions derived from educational activities. (2) Strategies for implementing P5 activities in fourth-grade students are diverse, including material selection and engaging teaching methods to enhance knowledge acquisition. These efforts are supported by advocacy materials like banners or pamphlets. (3) The impact of P5 activities on students’ character at SDN Jombatan 6 Jombang is evident in their daily conduct, such as caring for plants, proper waste disposal, reducing plastic waste, bringing homemade lunches, participating in community service, and adhering to school regulations.
Co-Authors Fatmawati, Irma Dyah Fitri Alyani Maarten Dolk, Maarten Puri Pramudiani Rahma Pratiwi, Emy Yunita Vale, Colleen