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Gandung Sugita
Pendidikan Matematika FKIP-Universitas Tadulako
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Mathematics Social Sciences Other

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PROFILE OF STUDENT’S CONCEPT UNDERSTANDING IN COMPARATIVE MATERIAL WITH VALUE AND VARIOUS GRADES IN CLASS VII Ni Luh Regita Eka Widhiani; Anggraini Anggraini; Gandung Sugita; Ibnu Hajar
JME (Journal of Mathematics Education) Vol. 8 No. 2 (2023): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v8i2.1964

Abstract

Students' understanding of concepts needs to be profiled so that teachers can find out the description and understanding of students' mathematical conceptsThis study aims to obtain a description or description of students' understanding of the concept of value comparison material and value turning at SMP Negeri 1 Ampibabo. This type of research is descriptive with a qualitative approach. The subjects of this study were students of class VII A at SMP Negeri 1 Ampibabo, which consisted of one student each with high, medium, and low mathematical abilities and good communication skills according to the teacher's recommendations. The results of this study are that students with high mathematical abilities are able to use the four indicators to understand the concept, and students with moderate mathematical abilities are able to use the four indicators to understand the concept. However, they are still mistaken in distinguishing comparisons of equivalent and reverse values, and students with low mathematical abilities are only able to use three indicators of conceptual understanding in working on comparison questions of value and return value.
ANALISIS KEMAMPUAN PEMAHAMAN KONSEP SISWA KELAS VIII RADEN SALEH SMP NEGERI MODEL TERPADU MADANI PALU PADA SISTEM PERSAMAAN LINEAR DUA VARIABEL Apriliani, Nurul Esra; Murdiana, I Nyoman; Anggraini, Anggraini; Sugita, Gandung
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 12 No. 4 (2025): Jurnal Elektronik Pendidikan Matematika Tadulako (JEPMT)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jepmt.v12i4.3879

Abstract

This study aims to obtain a description of the ability to understand the mathematical concepts of 8th grade students of Raden Saleh SMP Negeri Madani Palu Integrated Model on the material of the Two-Variable Linear Equation System. This type of research is descriptive qualitative. The subjects in this study consisted of 2 people, where 1 student with high math ability, and 1 student with low math ability. Data collection techniques are using tests and interviews.  Data analysis uses 3 stages, namely, data reduction, data exposure, and conclusion drawing. The results showed that (1) Analysis of concept understanding of high mathematics ability subjects on the indicator of restating a concept, able to explain the meaning of the system of linear equations of two variables using their own language but, incomplete; on the indicator of classifying objects according to certain properties in accordance with the concept, able to classify examples and not examples of SPLDV; on the indicator of using and utilizing and selecting certain procedures or operations in solving problems, able to solve problems using existing procedures. (2) Analysis of concept understanding of low mathematics ability subjects on the indicator of restating a concept, able to restate a concept of a system of linear equations of two variables by looking at answers on the internet; on the indicator of classifying objects according to certain properties in accordance with the concept, not yet able to classify examples and not examples of SPLDV; on the indicator of utilizing and selecting certain procedures or operations, unable to solve the problem given.
PROFIL KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VIII SMP NEGERI 1 SINDUE TOBATA ALAM MENYELESAIKAN SOAL MATERI GARIS DAN SUDUT DITINJAU DARI JENIS KELAMIN YANG BERKEMAMPUAN TINGGI Faisal, Faisal; Nurhayadi, Nurhayadi; Lefrida, Rita; Sugita, Gandung
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 12 No. 4 (2025): Jurnal Elektronik Pendidikan Matematika Tadulako (JEPMT)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jepmt.v12i4.4799

Abstract

This study aims to describe students’ mathematical communication skills in solving problems related to angle relationships, taking into account gender differences among students of SMP Negeri 1 Sindue Tobata. This research employed a qualitative approach with two eighth-grade students as subjects, consisting of one male and one female student, both identified as high-ability learners. Data were collected through tests and interviews. The results revealed that the male student demonstrated mathematical communication skills in understanding mathematical ideas both orally and in writing, using mathematical terms and notations, interpreting mathematical ideas through graphs and symbols, and evaluating ideas orally, although his written evaluations were still lacking. In contrast, the female student exhibited better skills in evaluating mathematical ideas both orally and in writing. These findings provide insights into the differences in mathematical communication skills between high-ability male and female students within the context of mathematics learning.
Analysis of Students' Errors in Solving Algebraic Story Problems Based on Newman's Procedure: A Case Study in Junior High School Saputra, Sandy; Anggraini, Anggraini; Sugita, Gandung; Idris, Mustamin
Jurnal Pendidikan MIPA Vol 26, No 1 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i1.pp305-326

Abstract

This study aims to obtain a description of student errors in solving algebraic form story problems based on Newman's procedure in junior high school. This type of research is descriptive using a qualitative approach. This research uses Newman's error analysis. The subjects of this study were three students, each of whom had high mathematical ability (ST), medium mathematical ability (SS), and low mathematical ability (SR) selected from class VIII W.R Supratman based on the report card value of mathematics class VII odd semester 2023/2024. The results of this study are as follows: Students with high mathematical ability (ST) tend to make mistakes at the reading stage by not reading the problem completely, especially the symbol "Rupiah," and at the writing/notation (encoding) stage by not writing the conclusion and the symbol "Rupiah". Students with moderate mathematics ability (SS) made mistakes at the comprehension stage by not writing and mentioning the question information completely, the transformation stage by making an incorrect mathematical model, and the writing/notation (encoding) stage by not writing the "Rupiah" symbol. Students with low mathematics ability (SR) made mistakes at almost all stages: reading by not mentioning the Rupiah symbol and not reading the complete problem, comprehension by not writing and mentioning the problem information completely, transformation by making an incorrect mathematical model, process skills with calculation errors, and writing/notation (encoding) by not writing the Rupiah symbol and the correct conclusion. This research shows the importance of understanding the problem thoroughly, making the right mathematical model, and writing complete notations and conclusions in solving mathematical problems, the results of this study are expected to contribute to the improvement of the mathematics learning process, both from the teacher and student side, so as to improve students' mathematical problem solving skills, especially in the material of algebraic form story problems.       Keywords: problem solving errors, math skills, algebraic story problems, newman procedure.
Students' Critical Thinking Profile in Solving Problems Proving Trigonometric Identities in View of Gender Differences Eliyana, Eliyana; Sugita, Gandung; Anggraini, Anggraini; Murdiana, I Nyoman
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 1 (2024)
Publisher : Universitas Ma'arif Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v8i1.4468

Abstract

This study aims to describe the critical thinking profile of SMAN 5 Model Palu grade XI students in solving trigonometric identity proof problems regarding gender differences. The subjects in this study were male students or S1 and female students or S2 of grade XI Mipa 4 SMAN 5 Model Palu who have high mathematical abilities. Data were collected through tests and interviews. The results of this study indicate that S1 and S2 in solving trigonometric identity proofs have the correct answers and are accompanied by supporting reasons. However, there are some differences in thinking activities between the two, namely S1 who is a male student with high ability has a shorter answer than the solution of S2 who is a female student with high ability, S1 uses a logical way of thinking compared to S2 who tends to be proficient with his verbal abilities. This shows that S1 and S2 even though they have equal mathematical abilities, there are some differences between the two in solving trigonometric identity proofs whose data are obtained from written assignment answers and interview results.
Analysis of Errors in Solving Story Questions on Algebraic Operations Based Kastolan Theory Students SMP Negeri 6 Palu Fitriyaningsih, Ari; Sugita, Gandung; Anggraini, Anggraini; Murdiana, I Nyoman
Numerical: Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 1 (2024)
Publisher : Universitas Ma'arif Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25217/numerical.v8i1.4489

Abstract

This research examines students' mistakes in solving mathematics story problems, especially algebraic arithmetic operation story problems, based on Kastolan theory and examines what factors cause students to make these mistakes. The type of research used in this research is descriptive qualitative. The place where the research was carried out was SMP Negeri 6 Palu. The subjects taken in this research were class VII students at SMP Negeri 6 Palu, consisting of 1 student with several considerations obtained as students with low MH abilities. Before analyzing the data obtained, it is validated first using member check. The data analysis techniques used in this research are data reduction, data presentation and drawing conclusions. The results of this research show that subject MH made 3 types of errors based on Kastolan's theory, namely: Conceptual Errors in the form of the subject not being able to apply the formula, classifying the form of variables in solving the problem when using the formula that has been obtained, the subject not writing completely the information known in the problem and errors in substituting known information into the question. Procedural errors in the form of irregularity in the solution steps used by the subject, there are several steps that are skipped so that the solution becomes wrong until the final stage of solving the problem. Technical error in the form of Subject MH making an error in calculating the value in the arithmetic operation shown in the subject only dividing by 2 each solution to get the result of the question in the problem because the subject did not understand the formula to be used and was not correct in substituting the value in the problem into problem solving. The factors that cause errors made by students are divided into two, namely internal and external factors. Internal factors include low basic knowledge regarding the form of arithmetic operations, solving steps for story questions and low knowledge of algebraic material. Lack of practice working on questions in the form of story problems and students' lack of accuracy in solving story problems. The external factor is that students are in a hurry when completing story problems because they want to finish them immediately and go to do other activities with their friends.
ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA SMAN 1 SINDUE TOMBUSABORA BERDASARKAN TIPE KEPRIBADIAN Dermawan, Didit; Idris, Mustamin; Sugita, Gandung
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 13 No. 1 (2025): Jurnal Elektronik Pendidikan Matematika Tadulako (JEPMT)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jepmt.v13i1.5352

Abstract

The purpose of this study is to obtain an analytical description of students' critical thinking skills in solving trigonometry problems based on personality type. This research is a qualitative study with a descriptive approach. The results of this study are as follows: Student MHA with a guardian personality type met 1 critical thinking indicator on question number 1, which is focus, and met 6 critical thinking indicators on question number 2, namely focus, reason, inference, situation, clarity, and overview (FRISCO). Student MHA with a guardian personality type tended to be thorough in completing the given problems. Student AI with a rational personality type met 6 critical thinking indicators, namely focus, reason, inference, situation, clarity, and overview (FRISCO). Student AI with a rational personality type was good at analyzing and tended to ignore things deemed unnecessary or time-consuming. Student FA with an artisan personality type did not complete question number 1. Student FA with an artisan personality type met 3 critical thinking indicators, namely focus, reason, and inference on question number 2. Student FA with an artisan personality type tended to be slow in learning/understanding mathematical material, proven by the fact that student FA with an artisan personality type could not complete question number 1 and tended to rush in working on the problem. Student AL with an idealist personality type met 4 critical thinking indicators, namely focus, reason, inference, and situation. Student AL with an idealist personality type elaborated their answers in detail, both orally and in writing.
Co-Authors Abdur Rahim Catur Putra Agus Rusmawan Alfisyahra Alfisyahra, Alfisyahra Anggraini Anggraini Anggraini Anggraini Anggraini , Anggraini Anggraini Anggraini, Tiara Wahyu Anisa, Nurul Apriliani, Nurul Esra Arafyana, Azniar Arfi ARDIANSYAH ARDIANSYAH Armawan, I Made Adi Arum Resiana Dewi Aryanto Aryanto Ashar Ashar Ashar Asti Perlin Terampe Aswan Aswan Azniar Arfi Arafyana Baharuddin Paloloang Baharuddin Paloloang Baharuddin Paloloang Bakri M Bakri Mallo darwis darwis, darwis Dasa Ismaimuza Dermawan, Didit Destria Pitaloka Pertiwi Deswati, Elvira Dwi Rahmandani Eliyana, Eliyana Ermayanti, Ni Luh Evie Awuy Evie Awuy Faisal Faisal Fausan Fausan Fausan, Fausan Ferdiawan A. Malidje Fira Rahmayanti Fitriyaningsih, Ari Gede Megantara, I Putu Agus Gumanambo, Nening Gumanambo, Nening Hanifa Hanifa, Hanifa hardiana Hardiana, Hardiana Huljannah, Miftha I Ketut Catur Suwitra I Made Adi Armawan I Made Cahrianto I Nyoman Murdiana I Nyoman Murdiana I Putu Agus Gede Megantara I Wayan Jati Jaya Ibni Hadjar Ibnu Hajar Ismi Zarkiah Jaeng, Maxinus Jaya, I Wayan Jati Juliyanti Jumarni Jumarni Jumarni Jumnah Jumnah Jusma Lidia Christine Silalahi Linawati Linawati Lusi Susilawati Marinus B. Tandiayuk Marinus B. Tandiayuk Marinus Barra Tandiayuk Marinus Barra Tandiayuk Marsana, I Made Maxinus Jaeng Megantara, I Putu Agus Gede Meinarni, Welli Miftha Huljannah Mirawati, Ni Kadek Moh Taufik Moh. Rizky Muh Hasbi Muh. Rizal Muh.Rizal MUSTAMIN IDRIS Nasir, Rahma Nening Gumanambo Ni Luh Regita Eka Widhiani Ni Putu Wiwik Noviani Nia Kurniadin Novia Astriani Novita Saselah Nur Ayu Enda Lestari Nurhayadi Nursusanti Nursusanti, Nursusanti Pathuddin Pribadi, Rahmat Ifal Puput Puji Lestari, Puput Puji Putra, Abdur Rahim Catur Rahmandani, Dwi Rahmat Ifal Pribadi Rahmi Rezky Hari Sentosa Rini Ananda Rita Lefrida Rizki Amalia Sy Pau Rusmawan, Agus Safira Afrilia SANDY SAPUTRA Saselah, Novita Satriana Satriana Sentosa, Rezky Hari Sitatun Nurmi Sry Yasma Sudarman Bennu Sukayasa Sukri sukri Sukri, sukri Susilawati, Lusi Sutji Rochaminah Suwitra, I Ketut Catur Terampe, Asti Perlin Tiara Wahyu Anggraini Ulfa Watini, Watini Yuyun Selasti Zarkiah, Ismi Zulfajri Zulfajri Zulfajri, Zulfajri