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All Journal Cakrawala Pendidikan Jurnal Pendidikan Matematika Jurnal Daya Matematis Jurnal Elemen Jurnal Terapan Abdimas Jurnal Gantang Al-Jabar : Jurnal Pendidikan Matematika HISTOGRAM: Jurnal Pendidikan Matematika Pendas : Jurnah Ilmiah Pendidikan Dasar JTAM (Jurnal Teori dan Aplikasi Matematika) Indiktika : Jurnal Inovasi Pendidikan Matematika Jurnal Review Pendidikan dan Pengajaran (JRPP) Lentera Sriwijaya : Jurnal Ilmiah Pendidikan Matematika Journal of Education and Learning Mathematics Research (JELMaR) PROGRES PENDIDIKAN Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Mosharafa: Jurnal Pendidikan Matematika Kognitif: Jurnal Riset HOTS Pendidikan Matematika Jurnal Abdi Masyarakat Indonesia Jurnal Kajian Pembelajaran dan Keilmuan DIKMAT: Jurnal Pendidikan Matematika Inovasi Matematika (Inomatika) Mathematics Education Journal Journal on Mathematics Education SJME (Supremum Journal of Mathematics Education) Media Pendidikan Matematika

Cecil Hiltrimartin

Unknown Affiliation

Author-ID : 282124

Humanities Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mathematics Physics Public Health Social Sciences Other

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Pembelajaran Operasi Perkalian melalui Permainan Tepuk Bergambar pada Siswa Tunagrahita Ringan di YPAC Palembang Azka, Dea Alvionita; Hiltrimartin, Cecil; Indaryanti
Mosharafa: Jurnal Pendidikan Matematika Vol. 5 No. 1 (2016): Januari
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v5i1.342

Penelitian ini adalah penelitian deskriptif kualitatif yang bertujuan untuk mendeskripsikan pembelajaran operasi bilangan melalui permainan tepuk bergambar pada siswa tunagrahita ringan di YPAC Palembang. Subjek penelitian adalah siswa kelas VIII YPAC Palembang yang berjumlah 4 orang. Teknik pengumpulan data yang digunakan adalah rekaman video dan observasi. Rekaman video dilakukan untuk mengamati kegiatan siswa selama proses pembelajaran dan membandingkannya dengan lembar observasi. Selama proses pembelajaran operasi bilangan melalui permainan tepuk bergambar, guru membantu siswa tunagrahita ringan menterjemahkan peristiwa penjumlahan berulang sebagai operasi perkalian. Sehingga, pada akhir pembelajaran, siswa bisa mengerjakan soal-soal yang diberikan. This qualitative descriptive research aims at describing the operation of number learning through picture clapping conducted to students with light mental retardation at Institute for physically and mentally handicapped children in Palembang. This study involves four students at the eighth grade as the subjects. Video recording and observation are undertaken to collect the data. The students' learning process will be recorded in video and later compared to the results of the observation. During the learning process using the selected strategy, teachers' role is as the facilitator to help the pupils translating the repeated adding question to be the multiplying operation. Thus, in the end of the class, students are able to do the exercises given.

Developing problem-based learning worksheet of relations and functions topic to support students’ conceptual understanding Pratiwi, Weni Dwi; Zulkardi, Zulkardi; Putri, Ratu Ilma Indra; Hiltrimartin, Cecil
Jurnal Gantang Vol 9 No 2 (2024): Jurnal Gantang
Publisher : Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/jg.v9i2.6958

This research is qualitative research with design research methods and a development research type aiming to produce valid and practical worksheets on relational and functional materials based on problem-based learning (PBL) to support students' conceptual understanding. The learning process is carried out in the classroom with learning activities, accompanied by a student's worksheet, which consists of 2 questions. The subjects of this study were students of class VIII 10 of SMP Negeri 8 Palembang, with 6 students as the focus of the research. There are 2 stages in this research, namely: (1) preliminary stage and (2) prototyping stage (formative evaluation), which is divided into 5 stages, namely (1) self-evaluation, (2) expert review, (3) one to one, (4) small group and (5) field test. This research was conducted based on the learning system in schools with data collection techniques, namely walkthroughs, tests, interviews, and questionnaires, to be collected and analyzed qualitatively to see the validity and practicality of the worksheet. The results of this study will show that the worksheet that has been made is valid, as seen from the results of the expert review and practical validation sheets obtained from the questionnaire results, with an average of 84.03%, which is included in the valid and practical categories. The developed worksheet also supports understanding PBL-based concepts (Problem-Based Learning) in solving problems given in relation and function material, which can be seen from the overall student test results.

Kesalahan Siswa Sekolah Menengah Pertama dalam Menyelesaikan Soal Matematika Tipe Pisa Safegi, Jihan Della; Hapizah, Hapizah; Hiltrimartin, Cecil; Made Sukaryawan; Kodri Madang; Ketang Wiyono; Yenny Anwar
Jurnal Inovasi Matematika Vol 3 No 2 (2021): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

This study aimed to determine student errors and the factors that caused students to make mistakes in solving PISA-type math problems. Error analysis was carried out based on Newman's analysis through tests and interviews. This research was conducted in one of the junior high schools in the Province of the Bangka Belitung Islands, involving 26 students. Subjects were selected based on a purposive sampling technique with three considerations: academic ability, teacher recommendations, and student willingness. This study used the descriptive qualitative method. The PISA math test questions tested consisted of change and relationship, space and shape, quantity and uncertainty, and data content. The results showed that reading errors were 40.21%, comprehension errors were 41.86%, transformation errors were 87.29%, process skill error is 90.26%, and the answer writing error is 88.46%. While uncertain and data is the content with the most significant error percentage, which is 82.31%. In general, errors were caused by students who cannot relate PISA questions to the material they usually study, and students were not accustomed to working on PISA questions.

Lintasan Belajar SPLDV Melalui Pendekatan Model Eliciting Activities (MEAs) Theresia Ingga Sari; Nyimas Aisyah; Cecil Hiltrimartin
Jurnal Inovasi Matematika Vol 4 No 1 (2022): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Penelitian ini merupakan design research yang bertujuan untuk mengembangkan lintasan belajar materi Sistem Persamaan Linear Dua Variabel (SPLDV) dengan menggunakan pendekatan Model Eliciting Activities (MEAs) dikelas VIII. Penelitian pada pilot experiment ini dilakukan di SMP Xaverius 7 Palembang yang melibatkan 6 orang siswa kelas VIII. Ada tiga tahapan dalam penelitian, yaitu preliminary design, design experiments, dan retrospective analysis. Data dikumpulkan menggunakan wawancara, tes, dokumentasi dan catatan lapangan yang kemudian dianalisis secara deskriptif dengan membandingkan Hypothetical Learning Trajectory (HLT). Hasil penelitian ini menunjukkan bahwa lintasan belajar pada materi sistem persamaan linear dua variabel dengan pendekatan MEAs yang dikembangkan sudah sesuai dengan HLT yang telah dirancang.

The Structure Of Algebraic Argumentation Of High School Students With The Toulmin Model Putri, Debi Suci; Hartono, Yusuf; Hiltrimartin, Cecil
Journal of Education and Learning Mathematics Research (JELMaR) Vol 4 No 2 (2023): November 2023
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v4i2.123

Mathematical argumentation is an important skill that must be owned in the 21st century. The purpose of the research is to analyze the structure of high school students' algebraic argumentation using the Toulmin model which consists of claim, data, warrant, and backing. This study involved 35 students in the odd semester of the 2022/2023 academic year at Muhammadiyah 1 Palembang High School. The students were asked to provide algebraic argumentation in mathematical proofs related to the quadratic function theorem. The algebraic argumentation was then analyzed using the Toulmin model. The results showed that 20% of students' mathematical argumentation skills were at level 5; 57.14% of students' mathematical argumentation skills were at level 4; 20% of students' mathematical argumentation skills were at level 3; 2.86% of students' mathematical argumentation skills were at level 2; and no students were at level 1.

Proof -Based Learning Design Using APOS Theory on Triangle Inequality Theorem Material Septiati, Ety; Hiltrimartin, Cecil; Hartono, Yusuf
Journal of Education and Learning Mathematics Research (JELMaR) Vol 4 No 2 (2023): November 2023
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Wisnuwardhana University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/jelmar.v4i2.124

This research aims to produce a series of activities that can support evidence-based learning on the material of the Triangle Inequality Theorem. The research method used was design research type validation study and involved 22 4th semester students of the Mathematics Education study program at PGRI University Palembang. The research was conducted through 3 stages, namely preliminary design, design experiment and restropective analysis. Data collection was carried out using observation techniques, documentation and activity sheets. The research data were analyzed qualitatively, namely comparing the results of observations during the learning process with the HLT that had been designed. The results showed that the designed activities can support evidence-based learning for Triangle Inequality Theorem material.

PENERAPAN PENDEKATAN TEACHING AT THE RIGHT LEVEL (TARL) PADA PEMBELAJARAN IPAS UNTUK MENINGKATKAN HASIL BELAJAR SISWA KELAS V DI SDN 109 PALEMBANG Utami, Putri Indah; Hiltrimartin, Cecil; Widioktafarani, Hanny
Jurnal Review Pendidikan dan Pengajaran Vol. 7 No. 4 (2024): Vol. 7 No. 4 Tahun 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v7i4.34068

Tujuan dari penelitian ini adalah untuk memastikan apakah penerapan strategi TaRL dapat meningkatkan hasil belajar sains siswa kelas VB di SDN 109 Palembang. Metodologi penelitian yang digunakan adalah penelitian Tindakan Kelas (PTK). Sampel dalam penelitian ini terdiri dari 27 siswa dari kelas VB. Peneliti menggunakan tes sumatif sebagai sarana pengumpulan data tentang hasil belajar kognitif siswa. Hasil yang diperoleh peneliti pada kegiatan pra-siklus, presentase ketuntasan hasil belajar pada peserta didik kelas VB menunjukan hasil yaitu 37,04%. Kemudian setelah tindakan pada siklus I, presentase ketuntasan hasil belajar pada peserta didik kelas VB sudah mengalami banyak peningkatan yaitu 62,96%. Setelah tindakan perbaikan yang dilakukan di siklus II, nilai hasil belajar peserta didik pada tes meningkat secara signifikan yaitu ada 21 peserta didik memiliki nilai yang memenuhi syarat ketuntasan dengan presentase ketuntasan 77,77%. Dengan demikian, peneliti dapat menyimpulkan bahwa penggunaan pendekatan TaRL ini berhasil meningkatkan hasil belajar peserta didik kelas VB pada pembelajaran IPAS, serta dapat membantu peserta didik kelas VB untuk mencapai capaian pembelajaran sesuai dengan kemampuannya.

Infographic Development through Instagram to Reduce Mathematics Anxiety and Increase Student Learning Outcomes Sari, Arika; Octaria, Dina; Utari, Rahma Siska; Somakim, Somakim; Hiltrimartin, Cecil; Hartono, Yusuf; Darmawijoyo, Darmawijoyo
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 7, No 2 (2023): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v7i2.12512

Research is a descriptive research that aims to describe the product development process in the form of infographic learning media in algebra material through Instagram that is appropriate for students to use for independent learning activities. This research focuses on creating infographic media in algebra material through Instagram to reduce mathematics anxiety and improve learning outcomes. The method used in this research is development research using the Sadiman’s model. The stages in this development model are preliminary stage, prototyping stage, and final stage, which from three stages contain of nine steps, namely identification of needs, formulation of objectives, formulation of materials, formulation of success measurement tools, writing of media scripts, production, tests/trials, revisions and the final product. There were 34 students of seventh graders of junior high school participating in this study. Data was collected through interviews, observations, tests, and questionnaires. Data were analyzed quantitatively and qualitatively. The results of the validation test by experts show that 93% of infographics through Instagram as strengthening students' understanding are included in the valid category and are suitable for use in the learning process. In addition, as many as 88% of students experienced an increase in learning outcomes after learning to use infographics through Instagram which indicated that the level of student anxiety in learning mathematics had decreased.

Kesulitan Siswa dalam Menyelesaikan Permasalahan Geometri Level Higher Order Thinking Skills Meryansumayeka; Zulkardi, Zulkardi; Ilma Indra Putri, Ratu; Hiltrimartin, Cecil
SJME (Supremum Journal of Mathematics Education) Vol 5 No 2 (2021): July 2021
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v5i2.5162

Geometri berperan penting dalam menunjang pemahaman siswa pada topik matematika lainnya. Dalam proses pembelajaran di kelas, kurikulum Indonesia saat ini menekankan pentingnya kemampuan berpikir tingkat tinggi siswa. Bagi siswa yang tidak terbiasa mengerjakan soal tipe Higher Order Thinking Skills (HOTS), mereka akan mengalami beberapa kesulitan. Penelitian ini adalah jenis penelitian deskriptif kualitatif yang bertujuan untuk menggambarkan kesulitan siswa dalam menyelesaikan permasalahan geometri yang dikategorikan ke dalam level HOTS. Subjek penelitian adalah 20 siswa di sekolah menengah di Sumatra Selatan. Pengumpulan data dilakukan melalui observasi, wawancara, dan lembar kerja siswa. Data yang dikumpulkan dianalisis secara kualitatif. Hasil penelitian menunjukkan bahwa siswa kesulitan dalam melihat tampilan susunan benda yang dilihat dari sudut pandang sisi tertentu; siswa kesulitan dalam memprediksi benda yang tidak terlihat secara langsung sehingga mempengaruhi perhitungannya; siswa kesulitan dalam merancang balok dengan ukuran panjang, lebar, dan tinggi yang memenuhi ukuran volume tertentu; dan siswa kesulitan dalam mengevaluasi jawaban yang telah diperoleh berdasarkan kesesuaian dengan ukuran volume balok yang diberikan. Dibutuhkan upaya agar mampu membantu siswa mengatasi kesuliatan - kesulitan dalam menyelesaikan soal geometri tipe HOTS.

EXPONENTIAL LEARNING TRAJECTORIES WITH THE CONTEXT OF WORM GROWTH TO SUPPORT STUDENTS’ PROBLEM-SOLVING ABILITIES Arianti, Yesi; Hiltrimartin, Cecil; -, Meryansumayeka
Dikmat: Pendidikan Matematika Vol 6, No 02 (2025): Oktober 2025
Publisher : STKI Harapan Bima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56842/dikmat.v6i02.764

TThis study aims to create a problem-solving based learning path for exponential material using the context of worm growth and to determine the effectiveness of this problem-solving based learning path for exponential material utilizing the context of worm growth. Exponential material is often considered difficult by students, so we must be able to create an interesting learning path to assist students in problem-solving, one of which is the PMRI approach. The worms' growth and reproduction process illustrates the exponential concept with an exponential regeneration and growth cycle. This study consists of four activities: (1) Understanding the problem, (2) Developing a plan, (3) Implementing the plan, and (4) Re-examining. The method used in this study is the design research method of the validation study type, which consists of three stages: preparation and design, design experiment, and retrospective analysis. Data collection techniques in this study used observation techniques, interviews, student work results, and pretests/posttests. The results of this study are learning paths designed to provide in-depth conceptual understanding for students and become solutions in problem-solving, especially in exponential material.

Co-Authors Adeulliah, Novie Agustarina, Mitta Araiku, Jeri Aziza, Difa Azka, Dea Alvionita Azka, Dea Alvionita Basa, Zahra Alhumairah Darmawijoyo, Darmawijoyo Desvitasari, Tria Dina Octaria Dina Octaria Diva, Karen Dwi Budi Santoso Ely Susanti Ely Susanti, Ely Erpina, Reppy Ety Septiati Farida Aryani Fauzie, Fauzie Firaisti, Sicilia Freti Lesiana Giani Giani Hadi Nasbey Hapizah Ida Sriyanti Indaryanti Indaryanti Ismet Ismet, Ismet Ketang Wiyono Kodri Madang Komariyatiningsih, Novi Kurniadi, Elika Made Sukaryawan Maharani, Annisa Dwi Maharani, Levana Manulang, Lilis Sri Jayanti Meilinda Meilinda Meriza, Dyna Meryansumayeka Meryansumayeka Muhamad Ikhsan Sahal Guntur Mulyono, Budi N. Fahriza Fuadiah Najmi Wahyuni Norma Setiawati, Norma Novi Komariyatiningsih Nurul Ain Safura Nurwijayanti Nyimas Aisyah Nyimas Aisyah Okta, Miko Oktaria, Pelinsia Oktaviani, Sherly Pratiwi, Weni Dwi Putri, Amelia Defrianti Putri, Debi Suci Rahma Amsar Napenty Rahma Siska Utari Ramandani, M. Rizky Ratu Ilma Indra Putri Riduan, Lindawaty Safegi, Jihan Della Sari, Arika Sari, Nopi Nopa Sary Silvhiany Scristia Scristia, Scristia Somakim, Somakim Sri Sumarni Sukmaningtyas, Novika Susanty, Ely Theresia Ingga Sari Utami, Putri Indah Widioktafarani, Hanny Wulandari, Trisna Yenny Anwar Yesi Arianti, Yesi Yusuf Hartono Zuli Nuraeni Zulkardi Zulkardi Zulkardi Zulkardi Zulkardi

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