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Rita Lefrida

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

Author-ID : 305513

Religion Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Physics Social Sciences Other

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PENERAPAN PENDEKATAN SAINTIFIK UNTUK MENINGKATKAN PEMAHAMAN SISWA PADA MATERI JARAK DALAM RUANG DIMENSI TIGA DI KELAS X MIA 2 MAN 1 PALU Rezky Hari Sentosa; Gandung Sugita; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 6 No. 1 (2018)
Publisher : Universitas Tadulako

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Abstrak: Penelitian ini bertujuan untuk memperoleh deskripsi penerapan pendekatan saintifik untuk meningkatkan pemahaman siswa pada materi jarak dalam ruang dimensi tiga di kelas X MIA 2 MAN 1 Palu. Jenis penelitian ini adalah penelitian tindakan kelas. Desain penelitian mengacu pada desain penelitian Kemmis dan Mc. Taggart, yakni perencanaan, tindakan dan observasi, serta refleksi. Penelitian ini dilaksanakan dalam dua siklus. Hasil penelitian menunjukkan bahwa penerapan pendekatan saintifik dapat meningkatkan pema-haman siswa pada materi jarak dalam ruang dimensi tiga dengan mengikuti langkah-langkah yaitu: (1) mengamati, siswa mengamati gambar, peristiwa maupun benda sekitar yang menunjukkan jarak dalam ruang dimensi tiga. (2) menanya, peneliti dan siswa melakukan tanya jawab terkait hal yang diamati. (3) menalar, siswa mengolah data yang diperoleh dari kegiatan menanya untuk memperoleh kesimpulan. (4) mencoba, siswa mengerjakan LKS secara berkelompok. (5) mengkomunikasikan, siswa bersama kelompoknya mempresen-tasikan hasil kerja kelompoknya di depan kelas. Kata kunci: Pendekatan Saintifik, Meningkatkan Pemahaman, Jarak Dalam Ruang Dimensi Tiga. Abstract: This study aims to obtain a description of the application of the scientific approach to enhance students' understanding on the main topic within the distance insolid geometry space in the class X MIA 2 MAN 1 Palu. This research is a classroom action research. The research design refers to the design of research Kemmis and Mc. Taggart, namely planning, action and observation, and reflection. This research was conducted in two cycles. The results showed that the apply of the scientific approach can enhance students' understanding on he main topic within the solid geometry space by following these steps: (1) observe, students observe pictures, events or objects around which shows the distance in three-dimensional space. (2) ask, researchers and students conduct a question and answer related to that observed. (3) reasoning, the students process the data obtained from the activities ask for the conclusion. (4) try, students worked in groups LKS. (5) communicating, the student and his group presented the group's work to the class. Keywords: Scientific Approaches, Improving Comprehension, Distance in solid Geometry Space.

PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS) UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA MATERI GRADIEN DI KELAS VIII A1 SMP NEGERI 14 PALU Rahmawati Dahlan; Ibnu Hadjar; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 6 No. 2 (2018)
Publisher : Universitas Tadulako

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Abstrak: Tujuan penelitian ini ialah untuk memperoleh deskripsi penerapan model pembelajaran kooperatif tipe Think Pair Share (TPS) yang dapat meningkatkan hasil belajar siswa pada materi gradien di kelas VIII A1 SMP Negeri 14 Palu. Jenis penelitian ini adalah penelitian tindakan kelas yang mengacu pada desain penelitian Kemmis dan Mc.Taggart, yakni perencanaan, tindakan, observasi dan refleksi. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran kooperatif tipe TPS yang dapat meningkatkan hasil belajar siswa pada materi gradien di kelas VIII A1 SMP Negeri 14 Palu yaitu dengan fase-fase sebagai berikut: 1) memberikan orientasi, guru menjelaskan aturan main dalam menggunakan model pembelajaran TPS dan batasan waktu untuk tiap fase kepada siswa, 2) think (berfikir secara individu), guru memberikan LKS kepada seluruh siswa dan siswa mengerjakan LKS secara individu, 3) pair (berpasangan), guru mengelompokkan siswa secara heterogen berdasarkan hasil tes awal, 4) share (berbagi jawaban dengan pasangan lain) guru meminta setiap kelompok berbagi dengan kelompok lain tentang hasil diskusi mereka dan 5) penghargaan, siswa dinilai secara individu dan kelompok dan siswa yang memiliki skor tertinggi akan diberikan penghargaan. Kata Kunci: Kooperatif; Think Pair Share; Hasil Belajar; Gradien. Abstract: The purpose of this research was to obtain a description that applying cooperative learning type Think Pair Share (TPS) that can Improve Student’s Learning out comes on gradient material in class VIII A1 SMP Negeri 14 Palu.This research is classroom action research which refers to Kemmis’ and Mc.Taggart’s research design that including are planning, doing, observation and reflection. The results of the research showed that the application of cooperative learning type TPS can improve student’s learning outcomes on gradient material in class VIII A1 SMP Negeri 14 Palu, it follow the phases: 1) provide orientation,the teacher explains the rules of the game in using application learning of TPS and the time limit for each phase to the students, 2) think (individual thinking) the teacher distributes LKS to all students and students working individually, 3) pair (pairs) teachers classify students heterogeneously based on initial test results, 4) share (share answer with other partner) the teacher asks each group to share with other groups about the results of their discussion and 5) awards, students are assessed individually and groups and students who have the highest score will be awarded. Keywords: Cooperatif; Think Pair Share; Learning outcomes; Gradient.

PROFIL PEMECAHAN MASALAH SISWA KELAS VII SMP NEGERI 3 PAMONA TIMUR PADA MATERI PECAHAN DITINJAU DARI KEMAMPUAN MATEMATIKA: PROFILE OF PROBLEM SOLVING OF CLASS VII STUDENTS AT SMP NEGERI 3 PAMONA TIMUR IN FRACTION MATERIAL IDENTIFIED THROUGH THE ABILITY OF MATHEMATICS Kevin Angryawan Rumba; Evie Awuy; Rita Lefrida; Alfisyahra
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 11 No. 2 (2023)
Publisher : Universitas Tadulako

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This study aims to obtain an overview of fractional problem solving in terms of mathematical ability in class VII students of SMP Negeri 3 Pamona Timur. This research is a descriptive qualitative research. The research subjects consisted of three students with high, medium and low abilities. Data collection techniques in this study were written tests and interviews. The results of this study indicate that the subject's ability to solve fraction problems according to Polya's stages are as follows: (1) the stages of understanding the problem of high, medium, and low ability subjects read repetitive problems, mention information that is known based on declarative sentences and information asked based on imperative sentences or question of the problem appropriately. (2) the stage of preparing a problem solving plan for subjects with high, medium, and low abilities in making a problem solving plan, namely stating the information asked to make a mathematical model in the form of adding and subtracting fractions based on what is known correctly. (3) the stage of carrying out the problem-solving plan, high-ability subjects carry out the problem-solving plan in accordance with what has been planned correctly, while subjects with moderate and low ability carry out the problem-solving plan according to what was planned beforehand but not quite right. (4) the stage of re-examining the results of solving high-skilled subjects did not write down how to check answers, but when interviewed by researchers, high-skilled subjects were able to re-check the answers that had been written down. Meanwhile, subjects with medium and low abilities were sure of their answers and did not re-check their answers, because they did not understand how to re-check their answers

PROFIL PEMECAHAN MASALAH SISWA TERKAIT KOMBINATORIAL DI KELAS XII SMA NEGERI 3 PALU DITINJAU DARI EFIKASI DIRI: Student Problem Solving Profile Related to Combinatorial in Class XII SMA Negeri 3 Palu Reviewed from Self-Efficacy Rizki Amalia Sy Pau; Anggraini; Gandung Sugita; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 11 No. 4 (2024)
Publisher : Universitas Tadulako

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This research aims to describe student’s problem solving related to combinatorial in class XII SMA Negeri 3 Palu viewed from self-efficacy. This type of research is descriptive research with a qualitative approach. The subjects of this research are student who have a high levels of self-efficacy and low levels self-efficacy. The result of the research show that the problem solving profile of students who have; 1) high level of self-efficacy, a) understanding the problem stage, student try hard and persistently to interpret the problem by reading repeatedly to find information, b) devising a plan stage, students have strategic thinking, c) carrying out the plan stage, student solve the problem according to plan, d) looking back stage, students check answers. 2) low level of self-efficacy, a) stage of understanding the problem, students only rewrite the information in the problem, b) stage of devising a plan, students only read the problem as is so the plan used it wrong, c) stage of carrying out the plan, students made a mistake in solving the problem given, d) stage of looking back, student did not re- check the answers.

KAJIAN PENGGUNAAN MATEMATIKA PADA AKTIVITAS TUKANG KAYU DAN TUKANG BATU DALAM PROSES PEMBANGUNAN RUMAH: Study On The Use Of Mathematics In The Activities Of Carpenters And Masons Of House Construction Process Mohamad Ruslan Lainawa; Muh. Hasbi; Muh. Rizal; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 12 No. 1 (2024)
Publisher : Universitas Tadulako

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This research aims to obtain a description of the use of mathematics in the activities of carpenters and masons in the process of building a house. The subjects of this research were two builders who were carrying out construction in the village of Tokala Atas. The two craftsmen chosen as research subjects consisted of a masons and a carpenter. The research method used was qualitative with a descriptive type of research carried out in the village of Tokala Atas. The data collection techniques used were observation and interviews. Observations were made while the builders were building the house. Interview techniques were used to explore the data that had been obtained when the observations were made. The results of the research show that carpenters and masons use mathematical concepts in building houses, namely the Pythagorean concept when forming foundation angles and measuring the sloping sides of roofs. The concept of alignment when measuring foundation bow plank strings, measuring brick laying benchmark strings and measuring frame heights. The concept of comparison is used when measuring into the foundation and when determining the distance between floor girders. The concept of flat construction is used when making sloping reinforcement frames, making piles and forming wooden joints. The concept of perpendicular lines is used when adjusting the straightness of poles, sills and roof posts. Arithmetic concepts are used when calculating zinc and teal requirements. The mathematical concepts contained in house buildings made by carpenters are roof shape: roof shape, rice wrapper and wall shape: betel stacking shape, plate stacking and lengthwise.

PROFIL PENYELESAIAN SOAL PADA MATERI LUAS PERMUKAAN KERUCUT OLEH SISWA KELAS IX SMP NEGERI 1 KASIMBAR: Profile for Solving HOTS Questions On The Cone Surface Area Material by Students of Class IX SMP Negeri 1 Kasimbar Dini Miranda; Muh. Hasbi; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 12 No. 1 (2024)
Publisher : Universitas Tadulako

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This study aims to profile the completion of HOTS questions on the conical surface area material by SMP Negeri 1 Kasimabar students based on differentiated cognitive levels. This type of research is qualitative research. The subjects of this study were 2 students of different genders taken from class IX SMP Negeri 1 Kasimbar. The research subjects were one student with high mathematics ability with female gender (LN), and one student with high mathematics ability with male gender (MS). The data collection techniques in this study were written tests and in-depth interviews. The test given to the research subjects was a HOTS problem test on cone surface area material at the cognitive level of analyzing (C4). The results of this study indicate that the profile of solving HOTS problems on the surface area of the cone by students with high mathematics ability LN at the cognitive level of analyzing is correct, because the subject can distinguish information, organize by creating a structure in systematic problem solving and attribute by making conclusions based on the information obtained very well. While the profile of HOTS problem solving of cone surface area by MS high mathematics ability students at the cognitive level of analyzing is good, because MS subjects are also able to distinguish information and organize by creating structures in systematic problem solving, it's just that at the stage of attributing MS subjects are still lacking, because at the stage of attributings

PROFIL KEMAMPUAN KOMUNIKASI MATEMATIS SISWA MTS NEGERI 1 TOLITOLI DALAM MENYELESAIKAN SOAL CERITA SEGITGA SIKU-SIKU BERDASARKAN GAYA BELAJAR: Profile Of Mathematic Communication Ability Of Students Of MTs Negeri 1 Tolitoli In Solving Story Questions Based On Learning Style Meliani Mansur; Ibnu Hadjar; I Nyoman Murdiana; Rita Lefrida
Jurnal Elektronik Pendidikan Matematika Tadulako Vol. 12 No. 1 (2024)
Publisher : Universitas Tadulako

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This study aims to obtain a description of the mathematical communication skills of class IX Dzulhijjah 2 MTs Negeri 1 Tolitoli students in solving right triangle story problems. This type of research is descriptive with a qualitative approach. The subjects of this study were students of class IX Dzulhijjah 2 MTs Negeri 1 Tolitoli whose learning styles were visual, auditory, and kinesthetic. Data were collected through written assignments and interviews. The results of this study indicate that (1) The profile of mathematical communication skills of visual learning style subjects is able to write down information that is known and asked completely, and also the subject is able to describe a right triangle that corresponds to the problem along with the information on the right triangle, then the subject is able to using steps in solving problems, and the subject is able to conclude the answers obtained at the end of completion. (2) The profile of mathematical communication skills of auditory learning style subjects is able to write down information that is known and asked completely, and also the subject is able to describe a right triangle that corresponds to the problem along with the information on the right triangle, then the subject is able to use the steps in solve problems (3) The profile of mathematical communication skills, subjects with kinesthetic learning style are able to write down information that is known and asked completely, and also the subject is able to describe a right triangle in accordance with the problem along with the information on the right triangle, then the subject is able to use the following steps: steps in solving the problem.

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.

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.

Co-Authors Abd. Hamid Abdul Hamid ABDUL HAMID Agung Lukito AGUNG LUKITO Alfisyahra Alfisyahra Alfisyahra Alfisyahra Alfisyahra Alfisyahra Alfisyahra, Alfisyahra Alfisyhara, Alfisyhara Amelia, Reski Amelia, Risna Ana Puji Lestari Ana Puji Lestari Anggraini Anggraini Anggraini Arivi, Maharani Agustina Arnisah, Sitti Asyita, Asyita Auliyah, Rifqah Awaludin Awaludin, Awaludin Baharuddin Paloloang Bakri Bakri Bakri M Bakri M Bakri M Bakri Mallo Baso Amri Baso Amri Besse Nur Anisa Dahlan, Rahmawati Dahlia Dahlia Dasa Ismaimuza Desti Pujiarsih Dini Miranda Dwi Warli Dyah Permata Elsa Febriasari Evie Awuy Fahrur Razi Faisal Faisal Fani, Sri Fazlika, Jihan Febriasari, Elsa Fitriyanti, Winda Gandung Sugita Haerani, Novianti Hasbi, Muh Hermin, Arwini Puspita Hikber Todongi Husna, Radhiatul I Made Sudarsana I Nyoman Murdiana I Nyoman Murdiana Ibni Hadjar Ibnu Hadjar Ika Citra Pratiwi Jaeng, Maxinus Jihan Fazlika Julian, Rofi S Kamaruddin, Kamarudin Kamarudin Kamarudin Kanarasi, Yabes Maxrobin Karindah, Elis Safira Kevin Angryawan Rumba Khasanah, Tri Nur Lembang, Ulvina Tangke M, Bakri Mahdayani Mahdayani, Mahdayani Marinus B. Tandiayuk Marinus B. Tandiayuk Marnita Martina Martina Maxinus Jaeng Meliani Mansur Mirnawati Muin Mohamad Ruslan Lainawa MUFIDAH Mufidah Mufidah Muh Hasbi Muh Ikbal Almahdali Muh. Hasbi Muh. Hasbi Muh. Rizal Muh. Rizal Muhammad Fitrah Muhammad Fitrah, Muhammad Muin, Mirnawati MUSTAMIN IDRIS Mustamin Idris Ningrum, Ing Diar Maswal Ningsih, Firnawati Adia Nisa, Ainun Nita Nita Nita Nita Nur Islamiah Nur Islamiyah Nur' Ain Nurâ€™aini, Jafar Nurhalizah Nurhalizah Nurhalizah Nurhalizah Nurhayadi Nurhikma, Nurhikma Nurviani Alamanda Nur’aini Jafar Pathuddin Pujiarsih, Desti Purwanindina, Atila Maheswari Dewi Rahmadiani Rahmadiani Rahmawati Dahlan Ratna Ratna Dwi Oktavia Razi, Muhammad Fahrur Reski Amelia Rezki Lola Yunita Rezky Hari Sentosa Rizal, Muh Rizki Amalia Sy Pau Rochmat Wijaya Rofi Julian S Rydwan Balo 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, Syamsiar Tajudin Tajudin Tatag Yuli Eko Siswono Tatag Yuli Eko Siswono Tegoeh S Karniman Tegoeh S. Karniman Tina Warli, Dwi Welli Meinarni Wijaya, Rochmat Winda Fitriyanti Wirdania, Wirdania Wisilayasa, I Gede Darma

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