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Siahaan, Meiva Marthaulina Lestari

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Author-ID : 1381269

Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Comprehending Relations and Functions: Introducing and Demonstrating Papan Resi Teaching Aid Siahaan, Meiva Marthaulina Lestari; Hijriani, Lailin; Maifa, Talisadika; Laja, Yosepha Patricia Wua; Deda, Yohanis Ndapa
Smart Society Vol 2, No 2 (2022): December 2022
Publisher : FOUNDAE (Foundation of Advanced Education)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/smartsociety.v2i2.103

The teachers need help to convey the differences between relations and functions and to make concrete examples. The purpose of the community service team is to help students find and comprehend the theory and concept about relations and functions material for grade 8 by introducing and demonstrating the Papan Resi visual aid.The service held in SMPK Aloysius Niki-Niki, Timor Tengah Utara District, Nusa Tenggara Timur. The service method is based on action research: planning, action, observation, and reflection. The data are collected based on the audiences' observation sheets and response sheets. Data analysis used data triangulation. The results of this community service are that introducing and demonstrating Papan Resi could be beneficial for increasing students' comprehension of SMPK Aloysius Niki-Niki. The constructivist situation influences it, and the service needs to be held for other teaching aids

Hypothetical Learning Trajectory: To Determine The Solution of Linear Equation System in Elementary Row Operation Siahaan, Meiva Marthaulina Lestari; Fitriani, Fitriani; Manek, Prudensius
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 1 (2023): Mathline
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i1.379

The background of this research is the learning obstacles that arise on the topic of determining the solution of a system of linear equations (SLE) in applying elementary row operations (ERO). From these findings, it is necessary to formulate a hypothetical learning trajectory (HLT) that can guide the flow of thinking in designing didactic situations in the learning process. HLT expect to anticipate learning obstacles (LO) that arise. This research is a preliminary design of a series of didactical design research. The steps taken in compiling the HLT are 1) reviewing the lesson plan, the methods used to convey the material to determine SST solutions, and the textbooks used; 2) reviewing students' thinking processes conceptually and procedurally regarding theoretically determining SLE solutions; 3) reviewing design plans didactic. HLT is formulated into five types of student responses. It integrates into didactic situations by explaining the relevance of the elimination method in high school with three operations on ERO and then by explaining matrix material before SPL material. From this didactic situation, it can be formulated in teaching material that can accommodate emerging LO.

Content Knowledge: Analisis Miskonsepsi Literasi Numerasi Siswa SMP Katolik St. Aloysius Niki – Niki Solo, Maria Fransiska Venidora; Hijriani, Lailin; Siahaan, Meiva Marthaulina Lestari
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 9 No. 3 (2024): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v9i3.6691

Miskonsepsi merupakan kesalahan pemahaman konsep dalam menyelesaikan masalah matematika yang tidak sesuai dengan pakar di bidangnya. Tujuan penelitian ini untuk menganalisis miskonsepsi literasi numerasi pada siswa SMP Katolik St. Aloysius Niki – Niki berdasarkan pada content knowledge. Jenis penelitian ini adalah penelitian kualitatif. Penelitian ini dilakukan di SMP Katolik St. Aloysius Niki – Niki dengan subjek penelitian sebanyak 3 siswa yang mengalami enam jenis miskonsepsi. Metode pengumpulan data yang digunakan adalah tes dan wawancara. Berdasarkan hasil analisis, diperoleh kesimpulan bahwa siswa mengalami miskonsepsi terjemahan, mikonsepsi konsep, miskonsepsi strategi, miskonsepsi sistematis, miskonsepsi tanda dan miskonsepsi berhitung. Diantara miskonsepsi dalam menyelesaikan permasalahan pada setiap soal siswa belum terbiasa menghadapi soal – soal model PISA akibatnya masih rendahnya kemampuan siswa dalam menghadapi konteks masalah sehingga hasilnya berdampak pada pembuatan strategi, menyusun langkah – langkah pengerjaan sampai pada perhitungan masih belum tepat.

ANALISIS KEMAMPUAN LITERASI NUMERASI SISWA SMA BERDASARKAN GENDER Amsikan, stanislaus -; Toni, Albertus -; Siahaan, Meiva Marthaulina Lestari
Sepren Vol 6 No 01 (2024): Edisi November 2024
Publisher : Prodi Pendidikan Matematika FKIP Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sepren.v6i01.1540

Abstract This study was conducted with the aim to determine the numeracy literacy skills of students based on gender and map the numeracy literacy skills of each indicator based on gender. This research uses Mixed Methods. The instrument used to collect data was the numeracy literacy test. The results showed that students' numeracy literacy indicators in applying various numbers and symbols related to mathematical principles in finding solutions to each problem (N1) amounted to 83% with a very good category, students' ability to present information, such as using tables, charts, diagrams, and others (N2) amounted to 65.50% with a good category and students' ability to interpret the results of analysis to predict and take action amounted to 61.33% with a good category. As for students' numeracy literacy skills based on gender and numeracy literacy skills for each indicator based on gender, the results show that there is no difference in numeracy literacy skills between female students and male students. Keywords : Numeracy literacy, Gender Abstrak Penelitian ini dilakukan dengan tujuan untuk mengetahui kemampuan literasi numerasi siswa berdasarkan gender dan memetakan kemampuan literasi numerasi setiap indikator berdasarkan gender. Penelitian ini menggunakan Mixed Methods. Instrument yang digunakan untuk mengumpulkan data adalah tes kemampuan literasi numerasi. Hasil penelitian menunjukkan bahwa indikator literasi numerasi siswa dalam menerapkan berbagai bilangan serta lambang yang berkaitan dengan asas – asas matematika dalam menemukan solusi dari setiap permasalahan (N1) sebesar 83% dengan kategori sangat baik, kemampuan siswa dalam menyajikan informasi, seperti menggunakan tabel, bagan, diagram, dan lainnya (N2) sebesar 65,50% dengan kategori baik dan kemampuan siswa dalam menginterpretasikan hasil analisis guna meramalkan dan mengambil tindakan sebesar 61,33% dengan kategori baik. Sedangkan untuk kemampuan literasi numerasi siswa berdasarkan gender dan kemampuan literasi numerasi untuk setiap indikator berdasarkan gender diperoleh hasil bahwa tidak terdapat perbedaan kemampuan literasi numerasi antara siswa perempuan dan siswa laki – laki. Kata kunci: Literasi numerasi, Gender

Analysis of Student’s Numeracy Literacy Skill Based on Reflective-Impulsive Cognitive Style Klau, Maria Fransineti Hoar; Siahaan, Meiva Marthaulina Lestari; Hijriani, Lailin
Hexagon: Jurnal Ilmu dan Pendidikan Matematika Vol. 2 No. 2 (2024): October
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/hexagon.v2i2.7846.

The research belongs to a qualitative descriptive study that aims to describe the numeracy literacy skills students grade 8 of State Junior High School of Kota Baru I (SMPN Kota Baru) in terms of their cognitive styles. The subjects of this study were eight students representing students with reflective cognitive styles yet impulsive cognitive styles. Data collection techniques were, matching familiar figure test (MFFT) to classify students based on their cognitive styles, numeracy literacy tests, and interviews. Data analysis techniques used were data reduction, data presentation, and drawing conclusions. The results of this study showed that the level of numeracy literacy skills of reflective students (SR) was respectively SR 1 is 88%, SR 2 is 67%, SR 3 is 79% and SR 4 is 91%. The level of numeracy literacy skills of impulsive students (SI) was respectively SI 1 is 58%, SI 2 is 67%, SI 3 is 50% and SI 4 is 63%. Reflective subjects have a category of high and very high numeracy literacy ability levels while impulsive subjects have a category of medium and high numeracy literacy ability levels. Reflective students need a long time to understand the problem by describing it into a mathematical model so that reflective students excel in the reasoning aspect. Impulsive students tend to be quick in answering questions but pay less attention to the right answers so that impulsive students stand out in the communication aspect.

Deskripsi Kemampuan Pembuktian Langsung Mahasiswa pada Matakuliah Analisis Variabel Riil Fitriani Fitriani; Meiva Marthaulina Lestari Siahaan
RANGE: Jurnal Pendidikan Matematika Vol. 4 No. 1 (2022): RANGE Juli 2022
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.Vol4.Iss1.2715

Penelitian kualitatif ini dilakukan untuk mengetahui gambaran dari kemampuan mahasiswa dalam membuktikan suatu pernyataan matematika pada mahasiswa yang memprogramkan matakuliah analisis variabel riil. Kemampuan pembuktian langsung menjadi kemampuan yang harus dimiliki mahasiswa untuk lulus pada matakuliah analisis variabel riil. Mahasiswa diberikan instrumen berupa soal pembuktian matematis dengan beberapa alternatif jawaban pembuktian. Jawaban mahasiswa direduksi dengan mengelompokkan jawaban pembuktian langsung yang sejenis. Selanjutnya dipilih mahasiswa untuk diwawancarai berdasarkan perwakilan masing-masing kelompok jawaban tersebut. Hasil penelitian menunjukkan bahwa masih terdapat mahasiswa yang tidak mengetahui langkah awal atau pernyataan awal yang digunakan untuk menyusun argumen pembuktian langsung. Namun, ada pula mahasiswa yang sudah dapat menyusun argumen pembuktian dengan baik dan disertai penjelasan untuk setiap argumen yang dituliskan. Hasil penelitian ini juga berguna sebagai bahan refleksi bagi penulis khususnya dalam proses pembelajaran pada matakuliah analisis variable riil.

Implementing of the Aptitude Treatment Interaction (ATI) Learning Model for Linear Equation Systems and Matrix Materials for Prospective Mathematics Education Teacher Students Lailin Hijriani; Meiva Marthaulina Lestari Siahaan; Gusti Firda Khairunnisa; Emily Johnson
RANGE: Jurnal Pendidikan Matematika Vol. 5 No. 2 (2024): Range Januari 2024
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.Vol5.Iss2.5046

ABSTRACT This study aims to see the learning outcomes of prospective mathematics education teacher students after applying the Aptitude Treatment Interaction (ATI) learning model for linear equation systems and matrix. This study uses a quantitative descriptive approach with data collection techniques are test and documentation. Subjects were grouped into three categories, namely subjects with high mathematical abulity, medium, and low mathematical ability. The results showed that the application of the Aptitude Treatment Interaction (ATI) learning model gave a good response to learning outcomes with an average of 78.10 in the good category. This can be seen from the student learning outcomes as a whole, both students with high mathematical ability, medium, and low mathematical ability. So, it can be concluded after applying the Aptitude Treatment Interaction (ATI) learning model that the overall intake of students when viewed from their mathematical abilities does not cause a wide gap between them.

The Differences in Effectiveness of Learning Using Contextual Teaching and Learning (CTL) and The Missouri Mathematics Project (MMP) in Terms of Mathematics Learning Outcomes Yosepha P. W. Laja; Eduardus Beo Seso Delvion; Meiva Marthaulina Lestari Siahaan; Ermelinda Nainahas; Minanur Rohman
RANGE: Jurnal Pendidikan Matematika Vol. 6 No. 1 (2024): Range Juli 2024
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.v6i1.6844

This study aims to compare the effectiveness of learning using Contextual Teaching and Learning (CTL) and the Missouri Mathematics Project (MMP) in terms of students' mathematics learning outcomes. The research method employed was an experiment with a pretest-posttest non-equivalent comparison-group design. The research population consisted of seventh-grade students, with the sample being students from class VII A using the CTL learning model and class VII B using the MMP learning model. The independent variable in this study is the learning model, while the dependent variable is the mathematics learning outcomes. The instruments used were a learning outcome test and an observation sheet for the implementation of learning. The results of the study indicate that both learning models, CTL and MMP, are effective in improving students' mathematics learning outcomes. The Wilcoxon test analysis showed that the significance values for both models were less than 0.05, indicating their effectiveness. However, the Mann-Whitney test revealed no significant difference in effectiveness between the two learning models. These findings suggest that both CTL and MMP can be used as effective alternative teaching methods to enhance students' mathematics learning outcomes. This study contributes to the selection of appropriate teaching methods to improve understanding and learning outcomes in mathematics. It is recommended for future researchers to investigate other aspects such as cognitive, psychomotor, or affective domains, and for teachers to consider using CTL and MMP in their teaching activities.

An Analysis of Grade VIII Students' Difficulties in Solving Circle Story Problems: A Study Based on Polya's Problem-Solving Theory Manekat, Septianingsi; Son, Aloisius Loka; Siahaan, Meiva Marthaulina Lestari
Brillo Journal Vol 4 No 2 (2025): Technology Integration and Digital Transformation in Mathematics Education
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/bj.v4i2.70

This study aims to explore the difficulties experienced by students of grade VIII of junior high school in solving circle story problems based on Polya's Theory. The research approach used is a qualitative approach. This type of research is qualitative descriptive research. This research was conducted in one of the junior high schools in North Central Timor Regency. The subjects of this study were grade VIII consisting of 20 students. The instruments used were 4 circle material test questions and interviews to determine the factors that cause students to have difficulty working on the questions. Data analysis techniques through the stages of test data analysis, data reduction, data display and conclusion drawing. The results of this study indicate that the difficulties faced by students are 1) difficulty understanding the problem, namely students have difficulty in positioning the function of the symbol on the known and asked parts of the question, 2) difficulty making a solution plan, namely students have difficulty connecting the known and asked elements so that students do not fully understand the strategy that will be used to plan the solution, 3) difficulty completing the solution plan, namely students have difficulty writing a complete formula to be used in solving the problem so that they do not find the results requested by the question, 4) difficulty re-checking, namely students do not know how to make conclusions from the results of their work.

Chatbot Artificial Intelligence (AI) to Supporting Differentiated Mathematics Learning Laja, Yosepha Patricia Wua; Delvion, Eduardus Beo Seso; Siahaan, Meiva Marthaulina Lestari
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.pp118-130

Artificial Intelligence chatbots have become famous nowadays because of their ease of use, which is even felt by educators and students. However, the AI chatbot algorithm sometimes does not match what is expected because it is not precise and does not match the prompt. For example, when we type the prompt "basic concepts of mathematical modeling for middle school class VII" there is very little explanation of the basic concepts. The search results provided by AI chatbots are too complex for students who want to learn simple basics. Based on this, this research was carried out with the aim of developing an AI chatbot to support differentiation learning. This type of research is ADDIE model development research which is carried out in five stages, namely analysis, design, development, implementation and evaluation. The results of the research at the analysis stage are that students need learning media that is appropriate to their level of understanding of mathematical modeling material as basic material before studying other material. The results of this analysis are the basis for designing an AI chatbot and bot scenarios to be developed and given to experts, namely educational technologists and mathematics education lecturers. After that, small class trials and large class trials at the implementation stage to get practicality and effectiveness test results in using the AI chatbot. The final stage is evaluation as a process of reflection on the results of AI chatbot development. The research results show that the AI chatbot media developed is valid, practical and effective. Valid criteria with a percentage of 89.7%, practical criteria of 85% and effective criteria of 77.67% in small group trials. Keywords: chatbot AI, differentiated, mathematics learning.

Co-Authors Ahsan, Zulkaidah Nur Amsikan, stanislaus - Angelika Rosa Da Lima Leli Damianus Dao Samo Deda, Yohanis Ndapa E. Elvis Napitupulu Eduardus Beo Seso Delvion Emily Johnson Ermelinda Nainahas Farida Daniel Fedelia Funan Ferdinandus Mone Fitriani Fitriani Fitriani Fitriani Fitriani Gusti Firda Khairunnisa Handayani, Rika Hermina Disnawati, Hermina Hesni Neno Hesni Neno Hijriani, Lailin Hijriani, Lailin Juliana Mehelina Herlince Nenohai Klau, Kondradus Yohanes Klau, Maria Fransineti Hoar Kondradus Yohanes Klau Kurnia Putri Sepdikasari Dirgantoro Lidwina Felisima Tae LUDGARDIS LEDHENG Maifa, Talisadika Serrisanti Manek, Prudensius Manekat, Septianingsi Melda J Saragih Melda Jaya Saragih, Melda Jaya Merlin Helentina Napitupulu Minanur Rohman Missa, Yeni Naifio, Elvira Riyani Mau Ni Putu Yuni Astriani Dewi Oce Datu Appulembang, Oce Datu Patrisius Nulle Prudensius Manek Prudensius Manek Riny Oktora Purba Rut Tae Rut Tae Selestina Nahak Simarmata, Justin Eduardo Solo, Maria Fransiska Venidora Talan, Nelciana Tamba, Kimura Patar Tampani, Margarita Toni, Albertus Toni, Albertus - Wua Laja, Yosepha Patricia Yosepha P. W. Laja Yuliana Serli Danul Yuliana Serli Danul Zulkaidah Nur Ahsan Zulkaidah Nur Ahzan Zulkaidah Nur Ahzan

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