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Rita Lefrida

Mathematics Education Study Program, Faculty Of Teacher Training And Education, Universitas Tadulako

Author-ID : 305513

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PROFILE OF UNDERSTANDING THE CONCEPT OF PYTHAGORAS THEOREM OF CLASS VIII STUDENTS IN TERMS OF COGNITIVE STYLE Nita Nita; Alfisyahra Alfisyahra; Rita Lefrida; Pathuddin Pathuddin
JME (Journal of Mathematics Education) Vol. 9 No. 1 (2024): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v9i1.2126

Students' concept understanding needs to be profiled so that teachers can find out the level of description and understanding of students' mathematical concepts. The purpose of this study was to describe how the understanding of students of SMP Negeri Model Integrated Madani Palu in understanding the concept of pythagorean theorem in terms of cognitive style Field Independent (FI) and Field Dependent (FD). This type of research is descriptive with qualitative approach. The subjects in this study were students of class VIII Kihajar Dewantra SMP Negeri Model Integrated Madani Palu consisting of one student cognitive style Field Independent and one student cognitive style Field Dependent selected based on the results of the GEFT test. The instruments used in this study were GEFT test, concept understanding questions and interview guidelines. The results showed that students with Field Independent cognitive style can solve problems well based on indicators of concept understanding compared to students with Gield Dependent cognitive style. Based on these conditions, in the learning process the teacher should pay attention to the learning model used in learning activities

STUDENTS' THINKING PROCESS IN SOLVING PROBLEMS IN TERMS OF GUARDIAN AND IDEALIST PERSONALITY TYPES Nur Islamiyah; Rita Lefrida; Nurhayadi Nurhayadi; Sutji Rochaminah
JME (Journal of Mathematics Education) Vol. 9 No. 1 (2024): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v9i1.2104

This study aims to describe the thought process of students in solving problems in terms of personality types guardian and idealist in class XI SMA Negeri 5 Palu. This research is a qualitative descriptive research. The main instrument in this research is the researcher himself and supporting instruments are The Keirsey Temperament Sorter (KTS), math the problems, and interviews. The results of this study show that guardian students and idealist students are able to perform all stages of the thinking process in solving math problems, namely receiving information, processing information, and forming conclusions. Guardian and idealist students at the stage of receiving information read the problem well. Guardian students read enough once to understand the problem, while idealist students read repeatedly to understand the problem. At the information processing stage, guardian students can explain the problem solving plan while idealist students have difficulty explaining the solution plan. At the conclusion formation stage, guardian students consistently solve the problem according to what was previously planned. idealist students at the conclusion formation stage can solve the problem even though at the information processing stage they cannot explain the solution plan.

ANALYSIS OF STUDENT ERRORS IN SOLVING STUDENT MATHEMATICS UAS QUESTIONS ACCORDING TO CASTOLAN CRITERIA Mustamin Idris; Ulvina Tangke Lembang; Muh. Rizal; Rita Lefrida
JME (Journal of Mathematics Education) Vol. 9 No. 2 (2024): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v9i2.2068

This study aims to analyze the errors made by students in completing final semester exam (UAS) questions in the field of mathematics, namely linear programming, matrices and transformation geometry. The subjects of this study were students of class XI Nursing at SMK Kesehatan Indonesia Jaya Parigi. In determining the research subjects, purposive sampling technique was used . The data collection technique for this study used documentation of essay questions for the final semester exam and documentation of student answer sheets and interviews. The data analysis technique used according to Miles and Huberman is condensation of UAS and interview results data, presenting UAS and interview results data and drawing conclusions. The results of this study indicate that the errors made by students are conceptual errors, procedural errors and technical errors. Indicators of conceptual errors made by students are not being able to interpret problems/use terms, concepts, and principles, students are not able to choose formulas/properties correctly and students are not able to apply formulas/properties accurately. Indicators of procedural errors are inconsistencies in the solution steps with the questions asked and not being able to complete the questions until the final stage. Indicators of technical errors are errors in arithmetic operations and errors in moving numbers or arithmetic operations from one step to the next. Factors causing errors made by UAS participants are not understanding the questions well, lack of mastery of concepts in Matrix, Linear Programs and Transformation Geometry materials, rarely practicing reworking examples of questions, students only see and read examples of questions.

PROFILE OF CRITICAL THINKING SKILLS OF STUDENTS IN CLASS VII SMP ON FRACTION ADDITION MATERIAL IN TERMS OF GENDER Reski Amelia; Alfisyahra Alfisyahra; Mustamin Idris; Rita Lefrida
JME (Journal of Mathematics Education) Vol. 9 No. 2 (2024): JME
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v9i2.2067

This study aims to obtain an overview of the critical thinking skills of male and female students in class VII A SMPN 9 Palu on fraction addition material. This research aims to: 1) to obtain a description of the critical thinking ability of male students on the addition and subtraction of fractions 2) to obtain a description of the critical thinking ability of female students on the addition and subtraction of fractions. This type of research is descriptive using a qualitative approach. The subjects of this research were 2 students taken from 31 students of class VII A SMPN 9 Palu consisting of 1 male student with high mathematics ability and 1 female student with high mathematics ability. The results of this study showed that male and female subjects with high mathematics ability were able to fulfill the indicators of critical thinking ability by Facione (2015), namely: (1) can interpret the problem by identifying the information known and asked appropriately and able to interpret and understand the symbols contained in the problem, (2) connect between statements, questions and concepts by making mathematical modeling appropriately (3) determine and use the right strategy in the calculation process so as to find the right final solution, (4) able to draw conclusions from what is asked in the problem, and (5) have the awareness to re-examine the solution of the problem given by identifying errors in determining the strategy or in the calculation process and then being able to believe the answer.

MATHEMATICAL COMMUNICATION ABILITY OF CLASS X MIPA 1 MAN DONGGALA STUDENTS Nurhalizah Nurhalizah; Ibnu Hadjar; Tegoeh S. Karniman; Rita Lefrida
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.v8i2.1979

This type of research is a descriptive qualitative approach. The subjects in this research are class X MIPA 1 MAN Donggalastudents, consisting of 4 people, each two male students and two female students, who have FI cognitive style and FD cognitive style. Written assignments and interviews obtained data on students' communication skills. The results of the research show that the mathematical communication skills of students who have a Fielddependent cognitive style are less capable than men because they cannot achieve all the indicators. The student subject has a Field Dependent female cognitive style, which is quite capable because it achieves one. The student subject has a Field Independent male cognitive style, which is quite capable because it achieves two indicators. The student subject has a Field Independent female cognitive style that is capable of achieving all three indicators. The conclusion obtained from this research is that students' mathematical communication abilities are generally said to be poor. The majority of students have not met several indicators of the three indicators of students' mathematical communication abilities. This condition can be seen with only one student achieving all three indicators.

How students with masculine and feminine genders solve circle problem: A commognitive perspective Purwanindina, Atila Maheswari Dewi; Lefrida, Rita; Pathuddin, Pathuddin; Alfisyahra, Alfisyahra
Jurnal Gantang Vol 10 No 1 (2025): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v10i1.6894

Cognitive is the way students communicate their thinking processes in problem-solving. In solving problems, it is not only influenced by their thinking process, but other factors can affect it, such as gender differences. One of the subjects that can demonstrate students' cognitive abilities is the topic of circles. This study aims to determine students' cognitive abilities in solving circle problems from the perspective of masculine and feminine gender. The type of this research is exploratory research with a qualitative approach. This research was conducted in the 11th grade at SMA Negeri 1 Torue. The subjects in this study consist of one male student and one female student. After determining the research subjects, they were given a circular task. In addition, interviews were conducted while the subjects completed the task. The data analysis techniques used in this study are data condensation, data presentation, and conclusion drawing. The results of this study indicate that female students can solve circle problems by expressing all cognitive aspects in detail, neatly, clearly, and correctly. Meanwhile, when solving circle problems, male students express all cognitive aspects briefly and correctly.

Meningkatkan hasil belajar pada materi eksponen siswa kelas X-2 SMAN melalui penerapan website kahoot Auliyah, Rifqah; ., Kamarudin; Lefrida, Rita
AKSIOMA : Jurnal Matematika dan Pendidikan Matematika Vol 16, No 1 (2025): AKSIOMA: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/aks.v16i1.21280

Understanding exponent material helps students understand more complex concepts, such as exponential functions, logarithms, and exponential growth or decay. However, many students still have difficulties learning that material. The problems experienced by students usually come from understanding the basic concepts and complex rules of exponents. This can affect the achievement of learning objectives and learning outcomes. One of the factors that can affect student learning outcomes is that the learning media provided by the teacher is less attractive to students. One of the factors that can influence student learning outcomes is that the learning media provided by teachers are less attractive to students. So this research aims to improve student learning outcomes by implementing an interactive Kahoot website on Exponent material. This research is classroom action research (PTK) which was carried out over two cycles. Each cycle includes stages of planning, action, observation, and reflection. The subjects in this research were 36 students in class X-2 at SMAN Model Terpadu Madani Palu in the odd semester of the 2024/2025 academic year. Data is collected through administering tests and observations. The data analysis techniques used in this research are quantitative and qualitative. Based on the results of data analysis, it was found that the average learning outcomes of students in the pre-cycle were 63, cycle I was 69, and cycle II was 73. This shows that there was an increase in mathematics learning outcomes, so it can be concluded that the application of the Kahoot website can improve the mathematics learning outcomes of class X-2 students at SMAN Model Terpadu Madani Palu

Analysis of Errors Solving Questions Final Semester Examination Mathematical Junior High School Students Rizal, Muh; Dahlia, Dahlia; Paloloang, Baharuddin; Lefrida, Rita; Arivi, Maharani Agustina
Studies in Philosophy of Science and Education Vol. 5 No. 2 (2024): July
Publisher : National Dong Hwa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46627/sipose.v5i2.479

The aim of this study is to analyze the types of errors and the contributing factors in solving final semester mathematics exam questions among Grade VIII junior high school (JHS) students. This is a descriptive study using a qualitative approach. Data on errors were collected from the Final Semester Examination (FSE) results and through in-depth interviews with 28 Grade VIII JHS students in Palu City during the 2022/2023 academic year. Based on the analysis of five tested topics, number patterns, Cartesian coordinates, relations and functions, linear equations, and systems of linear equations in two variables, it was found that the most frequent errors were conceptual errors, particularly in the topics of Cartesian coordinates and linear equations. The main factors contributing to these errors include students’ inability to determine and apply appropriate formulas, as well as limited competency in performing calculation operations.

Exploring Students' Metacognition in Numeracy Problem Solving: The Role of Reflective and Impulsive Cognitive Styles Hermin, Arwini Puspita; Pathuddin, Pathuddin; Lefrida, Rita; Alfisyahra, Alfisyahra
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.pp688-707

The purpose of this study was to describe the metacognition of grade IX students of SMP Negeri 19 Palu in solving numeracy problems based on reflective and impulsive cognitive styles. Metacognition in this study includes three aspects namely awareness, regulation, and evaluation observed at each stage of problem solving according to Polya's model. This descriptive qualitative research used Matching Familiar Figures Test (MFFT-2021), numeracy written test, think-aloud protocol, and in-depth interviews for data collection. In-depth study subjects consisted of two students, one each with reflective cognitive style and one with impulsive cognitive style. The results showed that at the stage of understanding the problem, reflective students showed high awareness and were able to organize their thoughts to understand the context of the problem in depth, while impulsive students tended to be faster in understanding the problem without in-depth analysis. At the stage of developing a plan, reflective students perform good regulation and evaluate the plan made, while impulsive students show awareness and regulation, but the evaluation of the plan is not always consistent. At the stage of implementing the plan, reflective students are able to evaluate the ongoing process, although this evaluation is more visible at the final stage, while impulsive students are less consistent in evaluation during the implementation of the plan, with evaluation only appearing at the final stage. Finally, at the looking back stage, reflective students showed a clear evaluation, although awareness and regulation were not significantly visible, while impulsive students only showed evaluation at the final stage without any deep reflection on the process that had been passed. Overall, reflective cognitive style tends to produce a more complete and in-depth metacognitive involvement in each stage of problem solving, while impulsive style shows a more limited and less consistent involvement in the evaluation aspect. Keywords: metacognition, numeracy, cognitive style, reflective, impulsive.

Meningkatkan Motivasi Belajar Siswa Kelas II di SDN 01 Talang Anau Menggunakan Model Pembelajaran Based Learning (PBL) Lefrida, Rita; Husna, Radhiatul
Journal of Classroom Action Research Vol. 7 No. SpecialIssue (2025): Maret 2025
Publisher : Program Studi Magister Pendidikan IPA, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jcar.v7iSpecialIssue.6812

Permasalahan utama pada penelitian ini adalah rendahnya motivasi siswa Kelas II UPTD SDN 01 Talang Anau pada pembelajaran Tematik. Rendahnya motivasi belajar siswa pada mata pelajaran Tematik dipengaruhi oleh media dan model pembelajaran guru yang kurang menarik, sehingga siswa merasa bosan pada saat pembelajaran. Hal ini terlihat dari siswa malas mengerjakan tugas yang diberikan, malu mengungkapkan pertanyaan dan ingin pembelajaran cepat berakhir. Penelitian ini bertujuan untuk meningkatkan motivasi siswa dengan menerapkan model Problem Based Learning (PBL). Penelitian ini merupakan Penelitian Tindakan Kelas (PTK) kolaboratif. Subjek dalam penelitian siswa kelas II UPTD SDN 01. Prosedur tindakan kelas ini ditempuh dalam 2 siklus. Adapun langkah-langkah siklus terdiri dari perencanaan, tindakan, pengamatan, dan refleksi. Cara pengambilan data dalam penelitian ini dengan menggunakan observasi aktivitas peserta didik saat KBM. Berdasarkan hasil analisis, diperoleh bahwa model Problem Based Learning dapat memotivasi siswa karena. Hal ini dapat dilihat (1) Siswa lebih aktif dalam kegiatan pembelajaran, (2) Siwa mau terlibat dalam memecahkan masalah sehingga dapat mengembangkan cara berfikir siswa, (3) Siswa mau bertanya ketika mengalami kesulitan sehingga dapat terbantu untuk menemukan pengetahuan baru, (4) Berusaha mencari informasi yang dapat diperlukan untuk pemecahan. Implikasi penelitian ini dapat membantu guru dalam memilih penerapan model pembelajaran yang tepat untuk memotivasi belajar siswa. Kesimpulan dari penelitian ini terdapat peningkatan motivasi siswa dari 33,71% menjadi 78,66% dengan model PBL.

Co-Authors Abd. Hamid ABDUL HAMID Abdul Hamid AGUNG LUKITO Agung Lukito Ain, Nur' Alfisyahra Alfisyahra Alfisyahra . Alfisyahra Alfisyahra Alfisyahra Alfisyahra Alfisyahra, Alfisyahra Alfisyhara, Alfisyhara Almahdali , Muh Ikbal Amelia, Kadek Devy Amelia, Reski Amelia, Risna Ana Puji Lestari Ana Puji Lestari Andini Putri, Andini Anggraini Anggraini Anggraini Anggraini Arivi, Maharani Agustina Arnisah, Sitti Arsyil Waritsman Askanita, Dsiya Auralia Aswandi Aswandi Asyita Asyita Auliyah, Rifqah Awaludin Awaludin, Awaludin Ayu Qonita Badari, Siti Rahmatia Baharuddin Paloloang Baharuddin Paloloang Bakri Bakri Bakri Bakri M Bakri M Bakri M Bakri Mallo Bakri Mallo Baso Amri Baso Amri Basompe, Charlie Alva Besse Nur Anisa Dahlan, Rahmawati Dahlia Dahlia Dasa Ismaimuza Desak Ketut Permatasari Desti Pujiarsih Dwi Warli Dyah Permata Elis Safira Karindah Elsa Febriasari Evie Awuy Fahrur Razi Faisal Faisal Fajriani Fajriani Fani, Sri Fazlika, Jihan Febriasari, Elsa Fitriyanti, Winda Gandung Sugita Gandung Sugita Guci, Ammar Abdullah Joni Haerani, Novianti Hajerina Hajerina Hamsiana, Hamsiana Hasbi, Muh Hermin, Arwini Puspita Hikber Todongi Husna, Radhiatul I Luh Restini I Made Sudarsana I Nyoman Murdiana I Nyoman Murdiana Ibni Hadjar Ika Citra Pratiwi Indradewa, Rhian Indriana Indriana, Indriana Ira Firanda Gumita Islam, Fahrul Jaeng, Maxinus Jihan Fazlika Julian, Rofi S Kamaruddin, Kamarudin Kamarudin Kamarudin Kanarasi, Yabes Maxrobin Karniman, Tegoeh S Karniman, Tegoeh S. Khasanah, Tri Nur Lainawa, Mohamad Ruslan Lembang, Ulvina Tangke M, Bakri Ma'abud, Yusril Y Mahdayani Mahdayani, Mahdayani Mansur, Meliani Marinus B. Tandiayuk Marinus B. Tandiayuk Marnita Martina Martina Maxinus Jaeng Maxinus Jaeng Mery Napitupulu Miranda, Dini Mirnawati Muin Mubarik MUFIDAH Mufidah Mufidah Muh Hasbi Muh. Hasbi Muh. Hasbi Muh. Hasbi Muh. Rizal Muh. Rizal Muhammad Fitrah Muhammad Fitrah, Muhammad Muin, Mirnawati Musdalifa Mustamin Idris Mustamin Idris MUSTAMIN IDRIS Mustamin Idris Mustapa, Dita Mutia Nurul Ilmi Nasir, Rahma Ningrum, Ing Diar Maswal Ningsih, Firnawati Adia Nisa, Ainun Nita Nita Nita Nita Nur Islamiah, Nur Nur Islamiyah Nurâ€™aini, Jafar Nurhalizah Nurhalizah Nurhalizah, Nurhalizah Nurhayadi Nurhayadi Nurhayadi Nurhikma, Nurhikma NURUL AZIZAH Nurviani Alamanda Nur’aini Jafar Padang, Sery Londong Pala, Martavina Yustita Pathuddin Pathuddin . Pathuddin, Pathuddi Pau, Rizki Amalia Sy Pujiarsih, Desti Purwanindina, Atila Maheswari Dewi Putri, Istifanah Maharani Rahmadiani Rahmadiani Rahmawati Dahlan Ratna Ratna Dwi Oktavia Razi, Muhammad Fahrur Reski Amelia Rezky Hari Sentosa Riri Andini Rizal, Muh Rochmat Wijaya Rofi Julian S Rolanza . Rumba, Kevin Angryawan Rydwan Balo S.Pou, Zulkfiri Sabila B, Dini Nurul Sari, Septi Rahmita Sasongko, Luddy Bambang Selmi Selmi, Selmi Sentosa, Rezky Hari Sinta, Selviana Siti Hardiyanti Siti Hardiyanti Sitti Nurhaliza Sudarman Bennu Sudarsono Sukayasa Sutji Rochaminah Syamsiar, Syamsiar Tajuddin Tajudin Tajudin Tatag Yuli Eko Siswono Tatag Yuli Eko Siswono Tegoeh S. Karniman Tina Ulvina Tangke Lembang Uraefatul Jannah Walanda, Richard Albert Warli, Dwi Welli Meinarni Wijaya, Rochmat Winda Fitriyanti Wirawan, Moh. Dhuhri Surya Wirdania, Wirdania Wisilayasa, I Gede Darma Yunita, Rezki Lola Yustitia K. Zaenudin

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