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Keremata Lede, Yulius
Pendidikan Matematika Universitas Katolik Weetebula
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Analisis Kemampuan Penalaran Siswa Menyelesaikan Soal pada Materi Segitiga Ko’a, YuliusRonal Datu; Lede, Yulius Keremata; Making, Samuel Rex Mulyadi; Moza, Florida
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 4 No. 2 (2024): April - June 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v4i2.1840

Abstract

Penelitian ini bertujuan untuk mengetahui kemampuan penalaran siswa dalam menyelesaikan soal setelah penerapan model pembelajaran Problem Based Learning pada materi segitiga. Jenis penelitian ini deskriptif kualitatif dengan melibatkan 35 siswa kelas VII C SMPK St Paulus Karuni. 3 dari 35 siswa dipilih untuk mewakili kategori kemampuan penalaran matematis (Tinggi, sedang, rendah) dan diwawancarai secara mendalam terkait tugas penalaran yang diberikan. Analisis data dilakukan berdasarkan tahap reduksi data, penyajian data, dan kesimpulan. Hasil penelitian menunjukkan bahwa kemampuan penalaran peserta didik mengalami peningkatan disebabkan adanya efek dari penerapan model pembelajaran Problem Based Learning (PBL). Dalam hal ini model pembelajaran Problem Based Learning sangat efektif pada kemampuan penalaran siswa.
Analisis Kesalahan Siswa Kelas VIII Setelah Penerapan Model Pembelajaran Problem Based Learning pada Materi Teorema Phytagoras untuk Siswa SMP Kristen Waimangura Kira, Emirensiana Irene Lali; Lede, Yulius Keremata; Making, Samuel Rex M.; Lubur, Dorothea Noviana Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 6 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i6.4315

Abstract

This study aims to analyze students' errors in solving Pythagorean theorem problems using the Problem Based Learning (PBL) learning approach. The method used is a qualitative method with a descriptive approach aimed at determining the types of errors in solving Pythagorean Theorem problems after PBL. The results of the study showed that students' errors varied, ranging from conceptual errors such as understanding the definition of the Pythagorean theorem to procedural errors such as errors in calculations and use of formulas. These errors are influenced by students' understanding of basic concepts, problem-solving skills, and students' ability to apply the Pythagorean theorem in various problem contexts. The results of the study showed that students' abilities in solving Pythagorean Theorem problems that answered the questions correctly were still lacking. The cause of the errors made by students was that students were not careful in reading the questions, were not careful in understanding the questions so that they made mistakes in writing what was known and what was asked, so that they were less able to solve the questions so that they made mistakes in solving the questions.
Analisis Kesulitan Siswa Dalam Menyelesaikan Soal Cerita Matematika Materi Bilangan Bulat Di Kelas VII SMPN 1 Tana Righu Setelah Daring ama, alfianus tamo; Lede, Yulius Keremata; Making, Samuel Rex
Leibniz: Jurnal Matematika Vol. 4 No. 1 (2024): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v4i1.196

Abstract

Data merupakan informasi penting dan perlu perhatian khusus menunjukan bahwa, lebih dominan siswa yang nilainya tidak tuntas sehingga ada kesulitan yang dialami siswa pada materi bilangan bulat. Data yang tertulis merupakan rekomendasi untuk mengetahui tingkat kesulitan siswa. Analisis kesulitan siswa mengunakan metode penelitian kualitatif dengan jenis deskriptif. Analisis data meliputi; Reduksi data, penyajian data, kesimpulan dan verifikasi data. Data yang dianalisis yaitu berdasarkan Indikator Yeo dan Kow (2009), Arikunto (2006) dan Suyoto dkk(2015). Penelitian terlaksana pada hari kamis, 4 Agustus 2022 sampai Sabtu, 6 Agustus 2022 di kelas VIIA SMPN 1 Tana Righu yang menjadi kelas penelitian dengan jumlah 25 siswa. Tetapi, pada pelaksanaan tes hanya  21 siswa yang mengikuti tes karena satu siswa tidak hadir. Berdasarkan hasil Analisis kesulitan siswa dalam menyelesaikan soal cerita matematika materi bilangan bulat, peneliti mencatat dan menyimpulkan hasil penelitian bahwa, kesulitan memahami masalah yang diberikan khususnya mengetahui yang diketahui dan ditanyakan mencapai 34% yaitu ada 7 siswa, kesulitan menentukan strategi penyelesaian yang tepat khusunya menentukan rumus penyelesaian matematika mencapai 38% yaitu ada 8 siswa, kesulitan membuat model matematika pada penyelesaian jawaban mencapai 24% yaitu ada 5 siswa, dan kesulitan melakukan prosedur matematika yang benar khususnya menentukan kesimpulan yang logis mencapai 4% yaitu ada 1 siswa.
Analisis Kemampuan Pemecahan Masalah Matematis Siswa Kelas VIII Berbasis TIMSS di SMP Kristen Karuni Lika, Yulita; Making, Samuel Rex Mulyadi; Lede, Yulius Keremata
Leibniz: Jurnal Matematika Vol. 3 No. 1 (2023): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v3i1.197

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui sejauh mana kemampuan pemecahan masalah matematis siswa kelas VIII berbasiss TIMSS di SMP Kristen Karuni tahun ajaran 2022/2023. Jenis penelitian yang digunakan dalam penelitian ini adalah kualitatif. Subjek dalam penelitian adalah siswa kelas VIII SMP Kristen Karuni dengan jumlah 24 orang. Tehnik pengumpulan data ada tes dan wawancara. Tehnik analisis data melalui tiga tahap yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil analisis data menunjukan bahwa presentase keseluruhan siswa yang mampu dalam menyelesaikan soal berbasis TIMSS yang ditinjau dari beberapa tahap indikator menurut Krulik dan Rudnick pada tahap membaca dan berpikir dengan persentase 31,24% kategori rendah, yang kedua yaitu indikator mengeksplorasi dan merencanakan dengan persentase 28,11% kategori rendah, yang ketiga yaitu indikator mencari jawaban dengan persentase 18,75% kategori rendah, yang keempat yaitu indikator memilih strategi dengan persentase 14,58% kategori rendah, dan yang terakhir indikator meninjau kembali dan mendiskusikan dengan persentase 1% kategori rendah.
Eksplorasi Etnomatematika Pada Motif Kain Tenun Kecamatan Kodi Utara Dan Penerapannya Pada Pembelajaran Matematika Milla, Apshinta; Making, Samuel; Lede, Yulius Keremata
Leibniz: Jurnal Matematika Vol. 3 No. 1 (2023): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v3i1.204

Abstract

Penelitian ini bertujuan untuk 1) menemukan aspek-aspek matematika yang terdapat dalam motif kain tenun kecamatan Kodi Utara dan; 2) menerapkan aspek-aspek matematika yang terdapat dalam motif kain tenun kecamatan Kodi Utara dalam pembelajaran matematika. Penelitian ini dilakukan di Desa waitaru, Kecamatan Kodi Utara. Jenis penelitian ini adalah kualitatif deskriptif. Data diperoleh dari hasil wawancara dari ketiga narasumber yaitu pengrajin kain tenun. Data hasil wawancara berupa hasil analisis motif kain tenun kecamatan Kodi Utara yang kemudian dikaji aspek-aspek matematis berdasarkan 6 aktivitas dasar menurut Bishop (1998). Aktivitas pada pembuatan motif kain tenun pada masyarakat kecamatan Kodi Utara antara lain: 1) designing:merancang pola motif kain tenun, 2) measuring:mengukur jarak menggunakan jengkal setiap motif 3) counting:menghitung banyaknya benang yang diperlukan. Motif kain tenun memiliki aspek-aspek matematika seperti segitiga, persegi, persegi panjang, jajargenjang, trapesium, refleksi dan translasi.
ANALISIS KEMAMPUAN MATEMATIKA SISWA SMP SUMBA BARAT DAYA DALAM MENYELESAIKAN SOAL PISA Rex Mulyadi Making, Samuel; Keremata Lede, Yulius
AXIOM : Jurnal Pendidikan dan Matematika Vol 10, No 2 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/axiom.v10i2.10309

Abstract

Abstrak:Gambaran kemampuan siswa dalam menyelesaikan soal PISA khusunya pada matematika sangat penting untuk dianalisis dan dievaluiasi karena mengukur kamampuan membaca, matematika dan sains pada anak usia 15 tahun. Penelitian ini dilakukan di sekolah menengah pertama yang ada di Kabupaten Sumba Barat Daya. Tujuan dari penelitian ini adalah untuk mengetahui kemampuan siswa di Kabupaten Sumba Barat Daya dalam menyelesaikan soal matematika tipe PISA. Penelitian ini merupakan penelitian kuantitatif menggunakan survei. Jenis data yang digunakan dalam penelitian ini adalah data primer. Hasil tes siswa sekolah menengah pertama di Kabupaten Sumba Barat Daya menunjukkan bahwa dari 611 siswa yang mengerjakan 6 soal PISA terdapat: (1) 0,16% siswa memiliki 6 jawaban benar, (2) 1,47% siswa memiliki 5 jawaban benar, (3) 9,17%siswa memiliki 4 jawaban benar, (4) 17,35% siswa memiliki 3 jawaban benar, (5) 24,55% siswa memiliki 2 jawaban benar, (6) 32,57% siswa memiliki 1 jawaban benar, dan (7) 14,73% siswa tidak memiliki jawaban benar. Kata Kunci:PISA, Sekolah Menengah Pertama, Sumba Barat Daya Abstract:The description of students’ ability to complete tests for the Programme for International Student Assessment (PISA), especially the mathematics test, is crucial to analyze and evaluate because the tests for PISA measure reading, math, and science of 15 years-old teenagers. This study was conducted in junior high schools in the Southwest Sumba regency. This study aims to determine students' ability in solving the math problems of PISA. This study follows a quantitative research method using a survey. The data used in this study comes from primary data. The results of students’ test in Southwest Sumba regency indicate that of 611 students who worked on 6 PISA tests, it was found that: (1) 0,16% of students answered 6 questions correctly, (2) 1,47% of students answered 5 questions correctly, (3) 9,17% of students answered 4 questions correctly, (4) 17,35% of students answered 3 questions correctly, (5) 24,55% of students answered 2 questions correctly, (6) 32,57% of students answered one question correctly, and (7) 14,73% of students answered all of the questions incorrectly. Keywords:PISA, Junior High School, Southwest Sumba
Meningkatkan Hasil Belajar Menggunakan Alat Permainan Puzzle Pada Materi Operasi Hitung Campuran Bilangan Bulat Kelas IV SD Negeri Pogo Lede Wada, Marselina; Making, Samuel Rex M; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 5 No. 1 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i1.579

Abstract

The cause of the problem of low learning outcomes for fourth grade students at Pogo Lede State Elementary School in mathematics subjects consists of teacher and student foctors. Teachers are less creative in delivering material, do not use media that, can attract students’ attention and interest in learning, focus more on using prinred books, and do not involve students. Apart from that, he also has difficulty in calculating. This makes students feel bored, fed up and sometimes students just sit still during the learning process so that the material provided by the teacher cannot be received optimally, causing the learning outcomes of class IV students at SD Negeri Pogo Ledeto still be below average. This research uses classroom action research (PTK) techniques because the research is carried out to solve problems that occur in the claasroom. In classroom action research improvements are carried out gradually and continuously as long as the research activities are carried out. Therefore, in PTK there is an implementation cycle in the from of a planning pattern. Carrying out observations and reflections so that in the next dycle it reaches the level you want to achieve. Based on the background above, the researcher chose to apply the puzzle game learning method. This method can make students activel discuss in class or in small groups to formulate the title improving learning outcomes using puzzle game tools on operation material counting mixed integers class IV Pogo Lede State Elementary School
Analisis Kesulitan Belajar Siswa dalam Menyesaikan Soal pada Materi Dimensi Tiga Kelas XII MIA SMA Negeri 1 Kota Tambolaka Bora, Agustinus Rina; Lede, Yulius Keremata; Making, Samuel Rex M.
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.589

Abstract

The aim of this research is to describe the difficulties faced by students in solving problems in three-dimensional material with the subject being 2 students in class XII MIA. This research is a type of descriptive qualitative research. The data analysis technique used was a qualitative data analysis technique by selecting 2 students from 53 students to be used as interview subjects. Data collection was carried out using written tests and interviews. The research results obtained include factors that cause students to have difficulty understanding learning and solving problems in three-dimensional space material, namely students do not understand the concept of triangles, students' low interest in learning so that students become less attentive and lazy, do not understand the meaning of the questions, and students only memorize the concept, so they are given other questions and are confused
Meningkatkan Hasil Belajar Siswa Melalui Model Pembelajaran Kooperatif Tipe STAD pada Materi Operasi Hitung Campuran Bilangan Bulat di SDK Weepangali Wohangara, Ayub Umbu Tonga; Kaleka, Yohanis Umbu; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 5 No. 1 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i1.595

Abstract

The research aims to describe the results of research on improving student learning outcomes through the Stad type cooperative learning model on the material on mixed whole number arithmetic operations in class VI SDK Weepangali. This research uses the classroom action research (PTK) method, with a stad type cooperative learning model, and includes two cycles, namely planning, implementation, observation, and reflection. Data collection techniques are observation, tests, and documentation. The research location was at SDK Weepangali, the research subjects were 31 class VI students. The results of this research show an increase in student learning outcomes after applying the STAD type cooperative learning model to the material on mixed integer arithmetic operations. The increase in student learning outcomes can be seen from the results of this research, classical completeness before conducting the research was 49.19%, in cycle I the percentage increased to 51% and cycle II increased to 74%. Based on the results of this research, the researcher concluded that the STAD type cooperative learning model can improve student learning outcomes in the material on mixed integer arithmetic operations in class VI SDK Weepangali
Analisis Kesalahan Siswa dalam Menyelesaikan Soal Cerita pada Materi Pola Bilangan Kelas VIII di SMP Swasta Rangga Rame Mbayu, Dominggus Wuru; Making, Samuel Rex M.; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 5 No. 1 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i1.654

Abstract

This study aims to determine students' mistakes in solving story problems on number pattern material in class VIII of Rangga Rame Private Junior High School for the 2023/2024 school year. The type of research used in this study is qualitative. The subjects in the study were students of class VIII Rangga Rame Private Junior High School with a total of 17 students. The object of this study is the analysis of student errors in solving story problems on number pattern material. Data collection techniques there are tests and interviews. Data analysis techniques go through three stages, namely data reduction, data presentation, and conclusions. The results of the data analysis showed that the overall percentage of students who made mistakes in solving story problems on the number pattern material reviewed from the Newman procedure at the problem reading stage was 0%, the problem understanding stage was 71%, the transformation stage was 92%, the process skills stage was 98%, and the answer writing stage was 98%.
Co-Authors A, Klarisa Riavinola M ama, alfianus tamo Ama, Enos Tamo Ansila Ina Kii Ansila Ina Kii Apshinta Milla Ate, Arista Ngindi Ate, Dekriati Bani, Theresia Bili, Nopliana Bora, Agustinus Rina Bota, Mariana Ra Bulu, Agustina Rovina Bulu, Martina Sumiyati Cordia, Grassiana Misseri Daga, Agustinus Tanggu Daindo Milla Daindo Milla Damma, Stefanus Umbu Dangu, Ivan Aris Nono Dedo, Jefrian Rivaldi Deta, Dominggus Umbu Dodo, Arista Ina Dona, Yunita Elkarisme, Yunice Elyakim N.S. Patty Elyakim Nova Supriyedi Patty, Elyakim Nova Supriyedi Engge, Yohanes Fachry Abda El Rahman Florida Moza, Florida Geterudis Kerans Geterudis Kerans Ghogha, Heronima Ghunu, Yosefina Ina, Yosefa Natalia Inna, Maya Tamo Jarang, Nelson Tidi Kadi, Susanti Kaleka, Yohanes Umbu Kalembu, Stefania Sulastri kerans, geterudis Kholid Kholid Kii, Ansila Ina Kira, Emirensiana Irene Lali Klarisa Riavinola M. A Klarisa Riavinola Miku Ate Ko’a, YuliusRonal Datu Laga, Ariyanti Ubu Lazarus Andrianus Pati Zaghu Lende, Mersiana S. Kaka Lende, Petrus Lende, Trimurti Elvin Lero, Yuvita Susanti Lika, Yulita Likka, Yusril Enga Lubur, Dorothea N. L. Lubur, Dorothea Novia Ludo Lubur, Dorothea Noviana Ludo Making, Samuel Making, Samuel R. M. Making, Samuel R.M. Making, Samuel Rex Making, Samuel Rex M Making, Samuel Rex M. Making, Samuel Rex Muliyadi Making, Samuel Rex. Mulyadi Malo, Anjelina Deviana Malo, Sarmolus Mariana Ra Bota Mbayu, Dominggus Wuru Milla, Apshinta Mone, Ariyanti Nabuasa, Meriana Napu, Timotius W. Napu, Timotius Woda Napu, Timotius Wonda Nopliana Bili Paramita Rusadi Legu Awa Paramita Rusadi Legu Awa Patty, Elyakim N.S. Raja, Angelina Laja Saga, Eklesia Bodu Samuel Making Samuel R. M. Making Samuel R.M. Making Samuel Rex M. Making Samuel Rex M. Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Setiawi, Agustina Purnami Sophi Kondi Tanggu, Daud Thoma, Theresia Novita Yeli Wada, Marselina Wara, Destriyati Saputri Lende Watu, Angelita Yessi Duka Walu Wilhelmus Yape Kii Wilhelmus, kii Yape Wohangara, Ayub Umbu Tonga Yawu, Yoas Gali Yohanis Umbu Kaleka, Yohanis Umbu Yublina Jeni Dapa Yuliana Sesi Bitu Yulita Lika Yunice Elkarisme Zaghu, Lazarus Andrianus Pati Zogara, Leonard