Article Per Year (5 Year)
p-Index From 2021 - 2026
6.626
P-Index
This Author published in this journals
All Journal EDUTECH: Jurnal Ilmu Pendidikan dan Ilmu Sosial SIGMA: Jurnal Pendidikan Matematika PRISMA Pendas : Jurnah Ilmiah Pendidikan Dasar MATAPPA: Jurnal Pengabdian Kepada Masyarakat Journal of Education and Instruction (JOEAI) JURNAL PENDIDIKAN TAMBUSAI Journal on Education JURNAL MATHEMATIC PAEDAGOGIC MES: Journal of Mathematics Education and Science Jurnal Eduscience (JES) JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) PHI: Jurnal Pendidikan Matematika Logaritma : Jurnal Ilmu-ilmu Pendidikan dan Sains Jurnal Fibonaci: Jurnal Pendidikan Matematika FARABI: Jurnal Matematika dan Pendidikan Matematika CHEDS: Journal of Chemistry, Education, and Science Pedagogy : Jurnal Pendidikan Matematika Jurnal MathEducation Nusantara Jurnal Ilmu Sosial dan Humaniora PEDAGOGI: Jurnal Ilmiah Pendidikan Wahana OMEGA: Jurnal Keilmuan Pendidikan Matematika JME Jaliye: Jurnal Abdimas, Loyalitas, dan Edukasi Journal of Innovative and Creativity
Yumira Simamora
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

Published : 48 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 48 Documents
Search

 1   2   3   4   5 
Pengaruh Model Missouri Mathematics Project Berbantuan Geogebra dalam Budaya Melayu untuk Meningkatkan Kemampuan Literasi Matematikasiswa MA Tahun Pembelajaran 2022-2023 Nasution, Diana Jalila; Simamora, Yumira; Maharani, Israq
JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) Vol 9, No 1 (2023)
Publisher : Fakultas Keguruan dan Ilmu pendidikan (FKIP) Universitas Labuhan Batu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpms.v9i1.4015

Abstract

Penelitian ini dibuat atas dasar rendahnya kemampuan literasi matematika pada siswa MA Swasta Hj Siti Julia Secanggang. Tujuan penelitian ini untuk melihat pengaruh dari model pembelajaran Missouri Mathematics Project (MMP) terhadap kemampuan literasi matematika siswa. Metode penelitian yang digunakan adalah metode penelitian eksperimen dengan desain kelompok kontrol pretes-postes. Sampel MA Swasta Hj Siti Julia Secanggang penelitian adalah, dimana untuk kelas XII-IPS dibuat sebagai kelas eksperimen dan kelas XII-IPA sebagai kelas control. Hasil penelitian dengan taraf signifikan α = 0,05. Menurut hasil analisis data menunjukkan bahwa hasil penelitian yang diperoleh untuk rata-rata kemampuan literasi matematika peserta didik kelas eksperimen diperoleh untuk pretest 12,29 dan postest 16,81 dan standar deviasi untuk pretest adalah 2,38 dan postest  1,61, sedangkan untuk kelas kontrol diperoleh rata-rata untuk pretest 13,77 dan postest 15,40, standar deviasi untuk pretes adalah 3,16 dan untuk postesnya 1,78. Dengan Sig (2tailed) < 0,05, maka terdapat pengaruh antara kelas ekperimen dan kontrol. Maka Sig (tailed) 0,02 < 0,05 maka dapat disimpulkan bahwa H0 diterima yang artinya adanya Terdapat pengaruh kemampuan literasi matematika berbasis budaya melayu antara siswa yang diajarkan dengan menggunakan model Missouri Mathematics Project.
Pengaruh Model Problem Based Learning (PBL) Berbantuan Aplikasi Desmos terhadap Kemampuan Literasi Matematis Siswa MAS Alwashliyah 12 Perbuangan Mariani, Sri; Simamora, Yumira; Rizqi, Nur Rahmi
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI: Jurnal Matematika dan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i1.1048

Abstract

This research aimed at (1) finding out whether there is an effect of Problem Based Learning (PBL) assisted by the desmos application on the mathematical literacy skills of MAS Al Washliyah 12 Perbaungan students (2) finding out the effectiveness of using the desmos application in quadratic function materials on the mathematical literacy skills of MAS Al Washliyah 12 students. This is a mix method with factorial experiment design. The population is all students of class X MAS Al Washliyah 12 Perbaungan academic year 2022/2023. The sample is determined by Simple Random Sampling. The data collection technique in this study is in the form of a description test in the form of pre-test and post-test and data analysis is carried out with the Independent Sample t test. The results of the test calculation t were obtained by score signifikan 0,000 < 0,05. The results of the effectiveness questionnaire with an average value of the experimental class of 3.68, the control class of 3.57 and the percentage of the experimental class of 73,63%, the control class of 71.37%. Therefore it can be concluded that: 1) There is an Effect of the Effect of the Problem Based Learning Model Assisted by the Desmos Application on the Ability of Mathematical Literacy of MAS Al Washliyah Students 12 Perbaungan; 2) The Effectiveness of the Use of the Desmos Application in the quadratic function material on the Mathematical Literacy Ability of MAS Al Washliyah 12 Perbaungan.
Pengaruh LKPD Terintegrasi Etnis Nusantara terhadap Kemampuan Numerasi Matematis melalui Model Pembelajaran SAVI Fitry Khairany Pulungan; Yenni Novita Harahap; Yumira Simamora
SOSMANIORA: Jurnal Ilmu Sosial dan Humaniora Vol. 5 No. 1 (2026): Maret 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/sosmaniora.v5i1.7200

Abstract

This study aims to examine the effect of using student worksheets (LKPD) integrated with Nusantara ethnic culture on students’ mathematical numeracy skills through the SAVI (Somatic, Auditory, Visual, and Intellectual) learning model. This research employed a quantitative approach using a true experimental design with a Post-test Only Control Group Design. The participants were eleventh-grade students of SMA Nurul Iman Tanjung Morawa in the 2025/2026 academic year, who were randomly assigned into an experimental class and a control class. The experimental class was taught using culturally integrated LKPD through the SAVI learning model, while the control class received conventional instruction. The research instrument consisted of an essay-type mathematical numeracy test that had been validated by experts. Data were analyzed using normality tests, homogeneity tests, and an independent samples t-test at a 0.05 significance level. The results indicated that the average mathematical numeracy score of students in the experimental class was higher than that of the control class. Hypothesis testing revealed a significance value lower than 0.05, indicating a statistically significant difference between the two groups. These findings demonstrate that the use of LKPD integrated with Nusantara ethnic culture through the SAVI learning model has a positive and significant effect on improving students’ mathematical numeracy skills. Therefore, culturally integrated worksheets can serve as an effective contextual learning alternative to enhance students’ mathematical numeracy abilities.
Pengaruh Model Pembelajaran RADEC untuk Meningkatkan Kemampuan Numerasi Matematis Siswa berbasis Budaya Melayu berbantuan Canva Malika Thahara; Yumira Simamora; Israq Maharani
SOSMANIORA: Jurnal Ilmu Sosial dan Humaniora Vol. 5 No. 1 (2026): Maret 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/sosmaniora.v5i1.7297

Abstract

This study aims to analyze the effect of the RADEC (Read, Answer, Discuss, Explain, and Create) learning model based on Malay culture assisted by Canva on the mathematical numeracy abilities of eighth-grade students at SMP Negeri 25 Medan in the 2025/2026 academic year. The research method used was true experimental design with a posttest-only control group design. The research population consisted of 220 eighth-grade students, with a sample of 61 students comprising class VIII-C as the experimental group and class VIII-D as the control group. The experimental class received treatment using the RADEC model based on Malay culture with Canva media, while the control class used conventional learning. The research instrument was a mathematical numeracy ability test covering three aspects: using numbers and symbols, analyzing graphic and table forms, and interpreting decision results. Descriptive analysis results showed that the average posttest score of the experimental class was higher than the control class in every numeracy aspect. Prerequisite tests indicated that the data were normally distributed and homogeneous. Hypothesis testing using t-test yielded a t-value of 2.001 with significance less than 0.05, indicating a significant difference between the two groups. This study concludes that the RADEC learning model based on Malay culture assisted by Canva has a positive and significant effect on improving students' mathematical numeracy abilities. This model proved effective in enhancing learning outcomes across all numeracy indicators and making learning more contextual, engaging, and meaningful for students.
Ethnomathematics-Based Flipbook E-Module Clarine Aurellia; Yumira Simamora; Israq Maharani; Anjeli Malika Devani Tarigan
PRISMA Vol. 15 No. 1 (2026): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v15i1.6327

Abstract

Mathematical literacy skills are an essential competency of the 21st century that demands innovation in digital teaching materials. Based on the needs analysis in the field, the use of interactive, self-contained web-based learning media still requires variations and has not explicitly integrated local cultural elements in the Data Centrality Measurement material. This study aims to produce a digital learning media prototype in the form of a flipbook e-module based on Deli Malay ethnomathematics assisted by the Heyzine platform integrated with the Discovery Learning flow, and to test the theoretical feasibility of the product. This type of research is a research and development (R&D) using the 4D model. In accordance with the limitations of the initial feasibility objectives, the development procedure is limited to the Develop stage in the theoretical validity testing phase by experts. Data collection techniques are carried out through documentation studies, structured interviews with teachers, and distribution of Likert scale assessment questionnaire instruments to experts. The assessment data are then analyzed quantitatively using the Aiken's V agreement index formula. The results of the development stage research indicate that the accumulated average content validity index of all learning device instruments is 0.92 with the criteria of Very Valid. In detail, the validity values were obtained from the Teaching Module instrument (0.88), LKPD (0.90), material aspects (0.91), flipbook media (0.94), cultural context (0.92), and the mathematical literacy ability test instrument which achieved the highest coefficient of 0.96. The conclusion of the study confirms that this ethnomathematics-based flipbook e-module product is declared valid, theoretically feasible, and recommended as a variation of independent teaching materials to support the achievement of 21st-century competency mathematics learning.
Pengaruh Model Problem Based Learning (PBL) Berbantuan Aplikasi Desmos terhadap Kemampuan Literasi Matematis Siswa MAS Alwashliyah 12 Perbuangan Sri Mariani; Yumira Simamora; Nur Rahmi Rizqi
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI: Jurnal Matematika dan Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i1.1048

Abstract

This research aimed at (1) finding out whether there is an effect of Problem Based Learning (PBL) assisted by the desmos application on the mathematical literacy skills of MAS Al Washliyah 12 Perbaungan students (2) finding out the effectiveness of using the desmos application in quadratic function materials on the mathematical literacy skills of MAS Al Washliyah 12 students. This is a mix method with factorial experiment design. The population is all students of class X MAS Al Washliyah 12 Perbaungan academic year 2022/2023. The sample is determined by Simple Random Sampling. The data collection technique in this study is in the form of a description test in the form of pre-test and post-test and data analysis is carried out with the Independent Sample t test. The results of the test calculation t were obtained by score signifikan 0,000 < 0,05. The results of the effectiveness questionnaire with an average value of the experimental class of 3.68, the control class of 3.57 and the percentage of the experimental class of 73,63%, the control class of 71.37%. Therefore it can be concluded that: 1) There is an Effect of the Effect of the Problem Based Learning Model Assisted by the Desmos Application on the Ability of Mathematical Literacy of MAS Al Washliyah Students 12 Perbaungan; 2) The Effectiveness of the Use of the Desmos Application in the quadratic function material on the Mathematical Literacy Ability of MAS Al Washliyah 12 Perbaungan.
INTEGRATION OF COMPUTATIONAL THINKING ABILITIES IN RING THEORY LEARNING: ANALYSIS OF STUDENTS' ANSWER PROCESS Nur Rahmi Rizqi; Yumira Simamora; Anjeli Malika Devani Tarigan; Kms. Muhammad Amin Fauzi; Edi Syahputra
JURNAL EDUSCIENCE Vol 13, No 3 (2026): Jurnal Eduscience (JES), (Authors from Malaysia, Saudi Arabia, and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v13i3.9248

Abstract

Purpose – This study aims to analyze students' computational thinking skills in solving problems in ring theory material and to describe their thinking processes using computational thinking indicators.Methodology – This study engages Mathematics Education students undertaking the Ring Theory course in the even semester of the 2024/2025 academic year at a private university in Medan. This study used a dominant qualitative mixed-methods approach. The research instrument was a computational thinking ability test compiled based on four indicators: decomposition, pattern recognition, abstraction, and algorithmic thinking, as well as an interview guide to explore students' answer processes.Findings – The results showed that students' computational thinking skills were generally in the sufficient category (47%), with 28% in the poor category and 25% in the good category. Students were relatively capable of decomposing problems and recognizing patterns, but still experienced difficulties with abstraction and developing algorithmic solution steps. These findings indicate that integrating computational thinking into ring theory learning can help develop students' analytical and systematic thinking skills.Contribution – Implicitly, this study provides evidence of students' computational thinking profiles in ring theory learning and highlights the importance of integrating computational thinking to enhance analytical and systematic thinking skills in higher mathematics education.
DEVELOPMENT OF CULTURALLY RESPONSIVE MATHEMATICS E-LEARNING: INTEGRATING THE SIKAMBANG TRADITION OF THE BARUS COASTAL COMMUNITY THROUGH THE WORDPRESS PLATFORM Yumira Simamora; Sahat Saragih; Izwita Dewi; Nur Rahmi Rizqi; Rasida Aulia Sari
JURNAL EDUSCIENCE Vol 13, No 3 (2026): Jurnal Eduscience (JES), (Authors from Malaysia, Saudi Arabia, and Indonesia)
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jes.v13i3.9213

Abstract

Purpose - The purpose of this study is to develop culture-responsive mathematics e-learning by integrating the Sikambang Pesisir Barus tradition into the WordPress platform, creating learning that is contextual, meaningful, and relevant to students' cultural backgrounds.Methodology - This research methodology uses a development research (R&D) design with the Plomp model. The research subjects were students/teachers from MTSN 1 and SMP Muhammadiyah 28 Barus, class VII-A, with 24 and 30 students, respectively. The research procedures include the stages of needs analysis, product design and development, expert validation, limited and field trials, and revisions until a valid, practical, and effective product is obtained. The intervention was carried out through the implementation of learning activities on a WordPress-based e-learning platform containing material on quadrilaterals and triangles. The research instruments included expert validation sheets, implementation observation sheets, student response questionnaires, and mathematical literacy ability tests. Data analysis was carried out descriptively and inferentially through tests of validity, practicality, and effectiveness, including n-gain calculations and analyses of learning completeness and student responses.Findings - The results show that a WordPress-based mathematics e-learning integrated with the Sikambang culture meets the criteria for validity, practicality, and effectiveness. The developed media was considered feasible by experts, easy to use in learning, and received positive responses from students. In addition, students' mathematical literacy improved. It can be concluded that integrating local culture into e-learning can make learning more meaningful and engaging.Contribution- These implications and contributions position WordPress as a viable alternative for driving innovative, contextually relevant learning experiences.
ANALISIS VALIDITAS, RELIABILITAS, INDEKS KESUKARAN DAN DAYA PEMBEDA INSTRUMEN TES KEMAMPUAN NUMERASI BERBASIS ETNOMATEMATIKA Yumira Mira Simamora; Minta Ito Simamora
MES: Journal of Mathematics Education and Science Vol 10, No 2 (2025): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i2.11389

Abstract

This research is part of an experimental study using Problem Based Learning model to improve junior high school students' mathematical numeracy skills based on ethnomathematics. The purpose of this study is to determine the level of Validity, Reliability, Difficulty Index, and Discriminatory Power of the ethnomathematics-based numeracy ability test instrument for junior high school students. The instrument used was in the form of essay test questions from pretest and posttest questions. The calculation of validity, reliability, difficulty index, and discriminatory power used IBM SPSS Statistics 20. The results of this study showed that the pretest and posttest questions were valid with sig (2-tailed) values 0.05. The calculation results of the pretest questions showed that the essay question instrument fell into the reliable category, because the calculation result obtained was 0.690, making it suitable for use as an instrument for data collection. The difficulty level of pretest and posttest questions fell into the easy and moderate categories. The discriminatory power criteria of the questions were moderate and good. Based on these research results, the ethnomathematics-based student numeracy ability test instrument is suitable for use.
Analisis Kontekstual Budaya Karo dalam Pengembangan Instrumen Soal Statistik Nuraini Sri Bina; Yumira Simamora
Jurnal Fibonaci: Jurnal Pendidikan Matematika Vol. 7 No. 1 (2026): Jurnal Fibonaci: Jurnal Pendidikan Matematika
Publisher : Prodi Pendidikan Matematika FMIPA Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jfi.v7i1.69917

Abstract

Penelitian ini bertujuan untuk menganalisis konteks budaya Karo sebagai dasar pengembangan instrumen soal statistik kontekstual bagi mahasiswa tingkat perguruan tinggi. Latar belakang penelitian ini berangkat dari permasalahan instrumen pembelajaran di perguruan tinggi yang masih bersifat umum. Kemudian, pentingnya menghadirkan pembelajaran matematika yang relevan dengan konteks budaya lokal, sehingga mampu meningkatkan makna belajar. Fokus penelitian ini berada pada tahap awal pengembangan, yakni eksplorasi unsur budaya Karo yang dapat diintegrasikan ke dalam soal-soal statistik pada materi mean, median, dan modus, serta validasi isi terhadap butir soal yang disusun. Metode yang digunakan adalah penelitian dan pengembangan (Research and Development) mengacu pada model Plomp, yang dalam penelitian ini dibatasi hingga tahap evaluasi formatif. Data dikumpulkan melalui studi pustaka, analisis artefak dan mentifak budaya Karo, serta penilaian ahli terhadap kesesuaian konteks, isi, dan bahasa soal. Analisis validitas dilakukan menggunakan Content Validity Index (CVI) dengan melibatkan ahli bidang statistik, pendidikan matematika, dan budaya Karo. Diperoleh validitas isi yang tinggi (CVI > 0,88) artinya hasil penelitian menunjukkan bahwa konteks budaya Karo memiliki potensi tinggi untuk dijadikan sumber pengembangan soal kontekstual. Secara umum, butir soal yang dikembangkan dinilai valid dari aspek isi dan konteks budaya, sehingga layak digunakan sebagai instrumen awal pada tahap uji coba berikutnya
Co-Authors Agustina, Ruizhaica ANDRIANI, KIKI Anjeli Malika Devani Tarigan Anjeli Malika Devani Tarigan Annisa Chaliana Aprida, Dwi Atipah Lubis Aulia, Dini Bagus Setiadi Clarine Aurellia Dini Aulia Edi Syahputra Eka Putri Yani Ermayani, Ade Fitri Mushliha Simatupang Fitry Khairany Pulungan Fuadaturrahmah, Fuadaturrahmah Harahap, Yenni Novita Icha Prame Shela Irvan Ismi Khairunnisa Tanjung Israq Maharani Izwita Dewi Izzati, Nurul Kamal Arief Khoiruddin Matondang Kms. Muhammad Amin Fauzi Lilis Lisa Monica Wau Mai Syaroh Harahap Malika Thahara Metrilitna Br Sembiring, Metrilitna Br Nasution, Aurora Pradizka Nasution, Diana Jalila Nur Halija Dalimunthe Nur Rahmi Rizqi Nuraini Sri Bina Pasaribu, Endi Zunaedy Popi Agustina Putri, Jihan Hidayah Rafidah Rafidah Rasida Aulia Sari Ririen Setyawati Ririn Anindya Putri Risna Mira Bella Risna Mira Bella Saragih Risna Mira Bella Saragih Rizky Fadillah Rokan, Najwah Sahat Saragih Saminah Saminah Saragih, Risna Mira Simamora, Minta Ito Siswadi Siswadi Siswadi Siswadi Siswadi Siswadi Siswadi Siswadi Siti Marwiah Siti Sintia Febrianti Sri Mariani Sri Mariani Susilawati Susilawati Syarah, Fatmah Ulfa Annisa Lubis Vivi Harianti Wati, Sartika Yusnika, Yusnika Zahra, Rana