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A ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PADA MATERI OPERASI BILANGAN CACAH KELAS IV SD INPRES 29 KABUPATEN SORONG Madzkiyah, Azizah Fathanatul; Subanji; Slamet Arifin
Symmetry: Pasundan Journal of Research in Mathematics Learning and Education Vol. 9 No. 1 (2024): Symmetry: Pasundan Journal of Research in Mathematics Learning and Education
Publisher : Mathematics Education Study Program, FKIP, Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/symmetry.v9i1.14361

Learners, especially at the elementary school level, must have mathematical problem solving skills. The purpose of this study is to analyse the ability of primary school learners to solve mathematical problems using the stages of Polya's Theory. This research uses a type of Concurrent Triangulation, which combines quantitative and qualitative methods when collecting data and analysing it. Interviews and written tests were used to collect data. The subjects in this study were fourth grade students of SD Inpres 29 Sorong Regency, Southwest Papua Province with a total of 22 people. The results showed that the problem solving ability of students was still in the low category with details of the acquisition of mathematical problem solving in the high category category 27.27% or 6 students, medium category 31.83% or 7 students, and low category 40.9% or 9 students. In the learning process, teaching materials are needed as well as developing strategies in the learning process that are relevant to the characteristics, environment and needs to support students' mathematical problem solving skills.

Student Argumentation Structure in Solving Statistical Problems Based on Adversity Quotient Aaidati, Iffanna Fitrotul; Subanji; Sulandra, I Made; Permadi, Hendro
Mathematics Education Journal Vol. 16 No. 2 (2022): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Evaluation of the argumentation structure is needed to check the quality of student argumentation to produce appropriate problem-solving. Such evaluation can be carried out by identifying the constituent components of the argument. This study aims to describe the structure of student argumentation in solving statistical problems based on the Adversity Quotient (AQ). This qualitative descriptive type of research involved 52 students who were taking statistical methods courses. Participants were classified into three Categories of Adversity Quotient based on the results of the ARP (Adversity Response Profile) questionnaire. Data were obtained using statistical problem tests and interviews. The results showed that students with the AQ Climber category were able to meet all the constituent components of argumentation when solving statistical problems. AQ Camper-type students are only able to meet three components, namely claims, evidence, and reasoning. Meanwhile, students with the AQ Quitter type are only able to fulfill one component, namely claims. Based on the results of the study, the level of Adversity Quotient determines the quality of the student's argumentation structure when solving statistical problems.DOI: https://doi.org/10.22342/jpm.16.2.16633.121-140

KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA SMP DALAM MENYELESAIKAN SOAL SEGI EMPAT [THE MATHEMATICAL CREATIVE THINKING ABILITY OF JUNIOR HIGH SCHOOL STUDENTS IN SOLVING QUADRILATERAL PROBLEMS] Maharani, Laily Putri; Subanji; Imam Rofiki
JOHME: Journal of Holistic Mathematics Education Vol. 9 No. 1 (2025): JUNE
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/johme.v9i1.9191

This study was conducted with the aim of describing the mathematical creative thinking abilities of ninth-grade students at SMP Negeri 2 and SMP Negeri 19 Malang in solving quadrilateral problems. The research method used was a qualitative descriptive approach. The subjects of the study were ninth-grade students, totaling 337, with 5 selected students as the sample. The data sources in the study were the students themselves, in the form of essay test results, questionnaire sheets, and interview results. The instruments used included essay tests, questionnaires, and interview guidelines. The research data were described in narrative form. The type of triangulation used was methodological triangulation by integrating essay test results, questionnaires, and reinforcing them with interview findings. Based on the results obtained, the students were categorized into levels of creative thinking ability: imitation, modification, and construction. Of the 5 selected subjects, 1 student was at the imitation level, 1 student at the modification level, and 3 students at the construction level. BAHASA INDONESIA ABSTRACT: Penelitian ini dilakukan dengan tujuan untuk memaparkan kemampuan berpikir kreatif matematis siswa kelas IX di SMP Negeri 2 dan SMP Negeri 19 Kota Malang dalam menyelesaikan soal segi empat. Metode penelitian yang digunakan yakni pendekatan kualitatif jenis deskriptif. Subjek penelitian yaitu siswa kelas IX yang berjumlah 337 dengan subjek terpilih sebanyak 5 siswa. Sumber data pada penelitian berupa hasil tes uraian, lembar angket, dan hasil wawancara yang telah dilakukan. Instrumen yang digunakan yaitu tes uraian, angket, dan pedoman wawancara. Data hasil penelitian dideskripsikan dalam bentuk uraian deskripsi. Jenis triangulasi yang digunakan yakni triangulasi metode dengan mengintegrasikan hasil tes uraian, angket, dan diperkuat melalui hasil wawancara. Berdasarkan hasil yang diperoleh, siswa dikategorikan berdasarkan level kemampuan berpikir kreatif yakni level imitasi, modifikasi dan konstruksi. Dari 5 subjek terpilih terdapat 1 siswa termasuk level imitasi, 1 siswa level modifikasi, dan 3 siswa level konstruksi.

VARIASI KESULITAN SISWA DALAM MENYELESAIKAN MASALAH KONTEKSTUAL BERDASARKAN TEORI POLYA Junianti, Ika Wulan; Subanji; Susanto, Hery
MaPan : Jurnal Matematika dan Pembelajaran Vol 13 No 1 (2025): JUNE
Publisher : Department of Mathematics Education Faculty of Tarbiyah and Teacher Training Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/mapan.2025v13n1a5

Contextual problem-solving ability is a crucial skill that students, particularly those in vocational schools, must possess, as they will immediately enter the workforce. To optimize students' abilities, research was conducted on the variation of students’ difficulties in solving problems. This study aims to identify variations in vocational high school students' difficulties in solving contextual problems of the system of linear inequalities in two variables based on Polya’s theory and to offer alternative solutions that can be used to overcome these difficulties. The type of research used is qualitative with a descriptive approach. The study subjects were 3 students of 36 students of the grade XI vocational high school, who had received the material. These students were selected based on the category of abilities they had, namely high, medium, and low, as well as considerations of communication of teacher recommendation results. Data collection was carried out through tests and interviews. Based on the results of the study, it was found that 1) Low Ability Students (LAS) experienced many variation in difficulties at all stages in solving problems according to Polya’s theory, 2) Medium Ability Students (MAS) at the stage of understanding the problem experienced fewer variations in difficulties compared to the other three stages, 3) High Ability Students (HAS) at the stage of understanding the problem and making plans experienced fewer variation in difficulties compared to the other two stages. Apart from being based on Polya’s theory, students also experience other variations of difficulty, namely the difficulty in defining variables, constants, and coefficients correctly. Abstrak: Kemampuan penyelesaian masalah kontekstual adalah kemampuan penting yang harus dimiliki oleh siswa khususnya siswa sekolah kejuruan karena mereka akan langsung terjun ke dunia kerja. Untuk mengoptimalkan kemampuan siswa maka dilakukan penelitian terkait variasi kesulitan siswa dalam menyelesaikan masalah kontekstual. Penelitian ini bertujuan untuk mengidentifikasi variasi kesulitan siswa SMK dalam menyelesaikan masalah kontekstual sistem pertidaksamaan linear dua variabel berdasarkan teori Polya dan menawarkan solusi alternatif yang bisa digunakan untuk mengatasi kesulitan tersebut. Jenis penelitian yang digunakan adalah kualitatif dengan pendekatan deskriptif. Subjek penelitian sebanyak tiga siswa dari 36 siswa kelas XI SMK yang telah mendapatkan materi tersebut. Siswa ini dipilih berdasarkan kategori kemampuan yang dimiliki yaitu tinggi, sedang, dan rendah serta pertimbangan komunikasi hasil rekomendasi guru. Pengumpulan data dilakukan melalui tes dan wawancara. Berdasarkan hasil penelitian didapatkan bahwa: 1) Siswa Kemampuan Rendah (LAS) mengalami banyak variasi kesulitan pada seluruh tahapan dalam penyelesaian masalah menurut teori Polya; 2) Siswa Kemampuan Sedang (MAS) pada tahapan memahami masalah mengalami variasi kesulitan lebih sedikit dibandingkan dengan tiga tahap lainnya; 3) Siswa Kemampuan Tinggi (HAS) pada tahapan memahami masalah dan membuat rencana mengalami variasi kesulitan lebih sedikit dibandingkan dua tahapan lainnya. Selain berdasarkan teori Polya, variasi kesulitan lainnya yaitu kesulitan untuk mendefinisikan variabel, konstanta, dan koefisien secara tepat juga dialami oleh siswa.

Exploring mathematical representations in solving ill-structured problems: The case of quadratic function Santia, Ika; Purwanto; Sutawidjadja, Akbar; Sudirman; Subanji
Journal on Mathematics Education Vol. 10 No. 3 (2019): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Mathematical representation has an essential role in solving mathematical problems. However, there are still many mathematics education students who have difficulty in representing ill-structured problems. Even though the ill-structured-problem-solving tasks designed to help mathematics education students understand the relevance and meaningfulness of what they learn, they also are connected with their prior knowledge. The focus of this research is exploring the used of mathematical representations in solving ill-structured problems involving quadratic functions. The topic of quadratic functions is considered necessary in mathematics teaching and learning in higher education. It's because many mathematics education students have difficulty in understanding these matters, and they also didn’t appreciate their advantage and application in daily life. The researchers' explored mathematical representation as used by two subjects from fifty-four mathematics education students at the University of Nusantara PGRI Kediri by using a qualitative approach. We were selected due to their completed all steps for solving the ill-structured problem, and there have different ways of solving these problems. Mathematical representation explored through an analytical framework of solving ill- structured issues such as representing problems, developing alternative solutions, creating solution justifications, monitoring, and evaluating. The data analysis used technique triangulation. The results show that verbal and symbolic representations used both subjects to calculate, detect, correct errors, and justify their answers. However, the visual representation used only by the first subject to detect and correct errors.

Teachers expectation of students’ thinking processes in written works: A survey of teachers’ readiness in making thinking visible As’ari, Abdur Rahman; Kurniati, Dian; Subanji
Journal on Mathematics Education Vol. 10 No. 3 (2019): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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The trends of teaching mathematical thinking and the existence of two thinking skills (critical dan creative thinking) the required by 21st-century skills have created needs for teachers to know their students’ thinking processes. This study is intended to portray how mathematics teachers expect their students showing their thinking processes in students’ written work. The authors surveyed Whatsapp and Telegram group of mathematics teachers. First, the authors shared the result of the literature review and the governmental regulations about the need to develop thinking skills. Second, the authors stated that the potentials of students’ written works as a tool for knowing students’ thinking processes. Third, the authors sent a simple mathematical problem with the topic of algebra and asked the mathematics teachers how should their students answer that problem such that they can easily monitor and assess their students’ thinking processes. A total of 25 teachers participated voluntarily in this survey. Results of the survey were triangulated with direct trial data in lecture classes at both undergraduate and postgraduate levels. The result indicates that participating mathematics teachers do not expect too much for their students to show their thinking processes in written work. Teacher’s focus is mostly on the accuracy and the correctness of their students’ mathematics answer.

Semiotic reasoning emerges in constructing properties of a rectangle: A study of adversity quotient Suryaningrum, Christine Wulandari; Purwanto; Subanji; Susanto, Hery; Ningtyas, Yoga Dwi Windy Kusuma; Irfan, Muhammad
Journal on Mathematics Education Vol. 11 No. 1 (2020): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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Semiotics is simply defined as the sign-using to represent a mathematical concept in a problem-solving. Semiotic reasoning of constructing concept is a process of drawing a conclusion based on object, representamen (sign), and interpretant. This paper aims to describe the phases of semiotic reasoning of elementary students in constructing the properties of a rectangle. The participants of the present qualitative study are three elementary students classified into three levels of Adversity Quotient (AQ): quitter/AQ low, champer/AQ medium, and climber/AQ high. The results show three participants identify object by observing objects around them. In creating sign stage, they made the same sign that was a rectangular image. However, in three last stages, namely interpret sign, find out properties of sign, and discover properties of a rectangle, they made different ways. The quitter found two characteristics of rectangular objects then derived it to be a rectangle’s properties. The champer found four characteristics of the objects then it was derived to be two properties of a rectangle. By contrast, Climber found six characteristics of the sign and derived all of these to be four properties of a rectangle. In addition, Climber could determine the properties of a rectangle correctly.

Characteristics of students’ abductive reasoning in solving algebra problems Hidayah, Indriati Nurul; Sa’dijah, Cholis; Subanji; Sudirman
Journal on Mathematics Education Vol. 11 No. 3 (2020): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

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When students solve an algebra problem, students try to deduce the facts in the problem. This step is imperative, students can draw conclusions from the facts and devise a plan to solve the problem. Drawing conclusions from facts is called reasoning. Some kinds of reasoning are deductive, inductive, and abductive. This article explores the characteristics of some types of abductive reasoning used by mathematics education students in problem-solving related to using facts on the problems. Fifty-eight students were asked to solve an algebra problem. It was found that the student’s solutions could be grouped into four types of abductive reasoning. From each group, one student was interviewed to have more details on the types. First, the creative conjectures type, the students can solve the problems and develop new ideas related to the problems; second, fact optimization type, the students make conjecture of the answer, then confirm it by deductive reasoning; third, factual error type, students use facts outside of the problems to solve it, but the facts are wrong; and fourth, mistaken fact type, the students assume the questionable thing as a given fact. Therefore, teachers should encourage the students to use creative conjectures and fact optimization when learning mathematics.

Pengaruh Penggunaan Media Visual dan Kartu Flash dalam Pembelajaran Bahasa terhadap Peningkatan Prestasi Siswa Marry Damayanti; Subanji; Dasna, Wayan
ELSE (Elementary School Education Journal) : Jurnal Pendidikan dan Pembelajaran Sekolah Dasar Vol 9 No 2 (2025): AUGUST
Publisher : UNIVERSITAS MUHAMMADIYAH SURABAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/else.v9i2.23214

Abstract This research originated from the problem of declining learning achievement of students of SD Negeri Sukun 3 Malang City One of the indicators of declining student learning achievement is the results of the odd 2023/2024 Mid-Semester Exam (UTS) which was carried out in September 2023. Of the 25 students who took part in UTS, KKM scores were obtained that did not meet the learning completeness. In the results of the 2023/2024 odd semester UTS held in September 2021, data was obtained that the average score of Grade VI students is still below the KKM score in English subjects. This study aims to determine the influence of flashcards and visual media in English learning on improving student achievement at SD Negeri Sukun 3, Malang City. The method used to analyze the data used logit regression with 25 active student respondents. Indicators to determine student learning achievement use a Likert scale of 1-4. The study Control class and experimental class results showed that the value of count = 3.74 and table = 1.685 where tcal> ttable so that H0 was rejected and Ha was accepted. This means that it can be concluded that the use of visual media can be used as a learning medium that can improve student achievement compared to flashcard media. This is because visual media has a high appeal and is colorful so it can support the learning process. Visual media makes the learning process It is easy to implement because it can increase the child's focus on the material presented. Keywords: flashcard, Visual Learning Media, increased student achievement

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