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Hepsi Nindiasari

Pendidikan Matematika FKIP Universitas Sultan Ageng Tirtayasa

Author-ID : 330442

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Efektivitas Model Pembelajaran Poblem Based Learning dan Realtime Feedback terhadap Pemahaman Siswa pada Topik Trigonomteri Segitiga Siku-Siku Zahrotun, Siti; Nindiasari, Hepsi
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 1 (2025): FARABI
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i1.954

This study aims to examine the effectiveness of the Problem-Based Learning (PBL) model integrated with teacher feedback in improving students’ understanding of the topic of trigonometry in right triangles. Due to students’ difficulties in comprehending the abstract nature of right triangle trigonometry and memorizing formulas, an innovative learning model is required to facilitate their understanding. This model also provides opportunities for students to practice problem-solving skills in real-life contexts, fostering critical thinking abilities.The results indicate that the PBL model, combined with teacher feedback during the learning process, produced better outcomes, as evidenced by cognitive test measurements. The experimental method used in this study was a one-group pre-test post-test design conducted quantitatively. Data were collected from a population of Grade X students at a high school in Serang City. The study employed test instruments consisting of multiple-choice and essay questions for data collection, which were analyzed using the non parametric paired sample t-test method.The analysis showed a significant improvement in the average scores, with post-test scores being higher than pre-test scores. It can be concluded that the implementation of the Problem-Based Learning model, integrated with teacher feedback, effectively enhances students’ understanding of the topic.

DEVELOPMENT OF NUMERACY LITERACY INSTRUMENTS TO IMPROVE HIGH-LEVEL THINKING SKILLS IN JUNIOR HIGH SCHOOL STUDENTS Hidayatullah, Arif; Nindiasari, Hepsi; Sukirwan, Sukirwan
Tesseract: International Journal of Geometry and Applied Mathematics Vol. 2 No. 1 (2024): Tesseract: International Journal of Geometry and Applied Mathematics
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/tess.v2i1.26

The background to this research is that there are very few numeracy literacy questions, students are still not trained enough to work on numeracy literacy questions, and teachers are not optimal in understanding the development of numeracy literacy questions even though in an effort to improve HOTS abilities students need to get used to dealing with numeracy literacy questions. This study aims to develop a math HOTS measuring instrument for first semester VII graders of junior high school (SMP) students. The research method is research and development with ADDIE stages namely analysis, design, development, implementation, and evaluation. The instruments used in the research were numeracy literacy test questions in the form of descriptions, observation sheets, response questionnaires, and interview sheets. The research flow begins with the initial analysis, the development of a grid of numeracy literacy questions, expert validation, revision, practitioner testing, small-scale trials, revisions, and large-scale trials. The results of the study were 18 items of numeracy literacy with Competency Standards for Numbers, Sets, Algebra, and Systems of Two-Variable Linear Equations. The numeracy literacy instrument indicators developed include analytical, evaluation, and creative abilities. The questions developed have valid quality as seen from the validity test of all the items above 0.5, reliability 0.86, difficult and moderate difficulty levels, and good and sufficient discriminating power. The mean HOTS score of students was 71. The conclusion of this study was to produce a valid and reliable HOTS measuring numeracy literacy instrument for junior high school students.

DEVELOPMENT OF NUMERACY LITERACY INSTRUMENTS IN ALGEBRA MATERIAL CLASS X VOCATIONAL SCHOOL Bastian, Heri; Nindiasari, Hepsi; Sukirwan, Sukirwan
Tesseract: International Journal of Geometry and Applied Mathematics Vol. 2 No. 2 (2024): Tesseract: International Journal of Geometry and Applied Mathematics
Publisher : Nindikayla Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57254/tess.v2i2.32

This research aims to produce a Mathematics numeracy literacy instrument on algebra liner material in vocational schools that is tested for validity and reliability, as well as through systematic analysis of instruments with differentiating power tests and difficulty indexes. This type of research is a development study with the Wilson model and the Oriondo and Antonio model. The data collection method uses interviews, expert validation sheets, questionnaires and numeracy literacy tests. The data were analyzed descriptively and quantitatively. The results of the research obtained are: 1) expert assessment states that this numeracy literacy instrument is an instrument that is suitable for use; 2) the readability test shows that this numeracy literacy instrument is categorized as "good", 3) the validity test shows that this instrument is valid; 4) this numeracy literacy instrument is a reliable instrument with a reliability value of ri>rtable; 5) it has a good interpretive power with the conclusion that it can be used without revision; 6) Medium average difficulty index of question items. So that the resulting instrument is an instrument that is suitable for measuring students' numeracy literacy. This research aims to produce a Mathematics numeracy literacy instrument on algebra liner material in vocational schools that is tested for validity and reliability, as well as through systematic analysis of instruments with differentiating power tests and difficulty indexes. This type of research is a development study with the Wilson model and the Oriondo and Antonio model. The data collection method uses interviews, expert validation sheets, questionnaires and numeracy literacy tests. The data were analyzed descriptively and quantitatively. The results of the research obtained are: 1) expert assessment states that this numeracy literacy instrument is an instrument that is suitable for use; 2) the readability test shows that this numeracy literacy instrument is categorized as "good", 3) the validity test shows that this instrument is valid; 4) this numeracy literacy instrument is a reliable instrument with a reliability value of ri>rtable; 5) it has a good interpretive power with the conclusion that it can be used without revision; 6) Medium average difficulty index of question items. So that the resulting instrument is an instrument that is suitable for measuring students' numeracy literacy.

SLR: PENERAPAN MEDIA INTERAKTIF CANVA DALAM MENINGKATKAN KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS DAN MINAT BELAJAR SISWA Amelia Muslimah; Nindiasari, Hepsi; Pujiastuti, Heni; Mustofa, Ade Nandang
Pedagogy: Jurnal Pendidikan Matematika Vol. 10 No. 2 (2025): Pedagogy : Jurnal Pendidikan Matematika
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/pedagogy.v10i2.6239

Kemajuan teknologi menuntut pendidik untuk mengembangkan media pembelajaran yang inovatif dan sesuai dengan karakteristik peserta didik masa kini. Salah satu media yang potensial adalah Canva, sebuah aplikasi desain grafis berbasis digital yang dapat dimanfaatkan dalam pembelajaran matematika. Penelitian ini bertujuan untuk mengkaji secara sistematis penerapan media interaktif Canva dalam meningkatkan kemampuan pemahaman konsep matematis dan minat belajar siswa. Metode yang digunakan adalah Systematic Literature Review (SLR) dengan menganalisis 12 artikel terpilih yang memenuhi kriteria inklusi dan eksklusi. Hasil kajian menunjukkan bahwa seluruh studi yang dianalisis menyatakan bahwa penggunaan Canva secara signifikan mampu meningkatkan pemahaman konsep matematis dan minat belajar siswa, khususnya pada jenjang Sekolah Menengah Pertama (SMP). Mayoritas penelitian menggunakan pendekatan kualitatif, dan tidak ditemukan studi yang menggunakan metode campuran. Temuan ini mengindikasikan bahwa media interaktif Canva dapat menjadi alternatif efektif dalam pembelajaran matematika karena mampu memfasilitasi keterlibatan siswa, menyajikan materi secara visual, serta mendorong motivasi belajar yang lebih tinggi.

Systematic Literature Review: Penerapan Virtual dan Augmented Reality dalam Pembelajaran Matematika Dito, Samuel Benny; Nindiasari, Hepsi; Syamsuri, Syamsuri; Hendrayana, Aan
Griya Journal of Mathematics Education and Application Vol. 5 No. 2 (2025): Juni 2025
Publisher : Pendidikan Matematika FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/griya.v5i2.660

The education sector needs to adapt to the changing times, one of which is through learning technology. There are many types of learning technology, two of which are Augmented Reality (AR) and Virtual Reality (VR). The purpose of this study is to describe the application of virtual and augmented reality in mathematics learning as viewed from the level of education and its influence. A Systematic Literature Review was used in this research method to examine the application of AR and VR in mathematics learning. The results show that AR and VR are used at almost all levels of education, including elementary school, junior high school (SMP), senior high school (SMA), and university. However, they are more commonly used at the junior high school and senior high school levels. The effects of AR and VR include improving learning outcomes, interest, experience, and motivation, critical thinking skills, mathematical spatial skills, visual thinking skills, problem-solving skills, creative thinking skills, and geometric skills.

Development of Numeric Literacy Instruments in Socio-Cultural Context in Banten for Junior High School Students Hulwani, Almas Zati; Nindiasari, Hepsi; Novaliyosi
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 1 (2025): 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.v10i1.7304

The results of the Program for International Student Assessment (PISA) show that the literacy of students in Indonesia is low. This shows that Indonesia is still far behind other countries. One of the reasons Indonesian students have low grades is the ineffective learning system in Indonesia. This investigation aims to produce a numeration liaison instrument of the social and cultural context in Banten for high school students. The methods used are research and development or Research and Development. (R&D). Using the Wilson, Oriondo and Antonio models. The results obtained were: 1) a numerational literacy instrument developed that is valid and reliable, 2) has an average difficulty level for each type of question, and 3) a numerational literature instrument developed falls into the category of both in different power tests. So, the tool developed by the researchers deserves to be used as an assessment to measure numerational literacy in the Banten cultural context.

Basic Literacy In Numeracy: Analysis of Misconceptions In Third Grade Elementary School Place Value Material Pambudi, Gigih; Nindiasari, Hepsi
Pelangi (e-Journal) Vol 16, No 1 (2025)
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/pj.2025.v16i1.8926

Mathematics, a core subject in schools, is crucial for developing logical and systematic thinking skills. One fundamental concept is place value, which helps students understand the position and value of digits in numbers. Proper understanding of place value is essential for learning more complex mathematical concepts like addition, subtraction, decimal operations, and fractions. However, many students often experience misconceptions about this concept, such as misinterpreting the value of digits. These misconceptions can lead to errors in more complex number operations and reduce students' confidence in their mathematical abilities. This study uses a qualitative method with a descriptive approach to systematically describe specific objects. Data collection techniques include interviews, observations, and documentation. Based on observations and interviews, it was found that students who experienced careless errors were 13%, concept errors were 9%, and a combination of both types of errors was 9%. Additionally, 6% of students experienced an inability to think mathematically or other learning disorders. Effective educational interventions, such as implementing constructivist learning, can reduce the likelihood of misconceptions. In conclusion, place value is the foundation of learning mathematics, and misconceptions in this area can have significant negative impacts on students. Teachers need to conduct deeper analyses and prepare better strategies to address these misconceptions.

Instructional level moderation at improving numerical literacy skills through creative problem-solving learning models Apriatni, Sri; Nindiasari, Hepsi; Sukirwan, Sukirwan; Khaeroni, Khaeroni
Al-Jabar: Jurnal Pendidikan Matematika Vol 14 No 2 (2023): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v14i2.17199

Background: In today's ever-changing landscape, students need strong numerical literacy skills to navigate life's complexities. Recognizing that students come with various learning capabilities, often referred to as "instructional levels," educators must think outside the box when it comes to teaching methods.Aim: This study aims to 1) gauge whether creative problem solving (CPS) or scientific learning is more effective in enhancing the numerical literacy skills of MA students; 2) assess the difference in the numerical literacy progress among MA students categorized at independent, instructional, and frustration levels; and 3) explore the interplay between teaching methods and instructional levels on students’ numerical literacy development.Method: Conducted as an experimental study, this research employs a 3x2 factorial design. Participants include students from Class X IPA at MAN 2 Serang. To collect data, we used tests focused on numerical literacy as well as assessments to categorize instructional levels. A two-way ANOVA serves as the statistical approach to test our hypotheses.Result: 1) MA students exposed to the CPS method showed greater improvements in their numerical literacy skills than those who engaged in scientific learning; 2) A noticeable variance exists in the growth of numerical literacy skills among MA students at independent, instructional, and frustration levels; 3) An interaction effect was identified between the chosen teaching method and the instructional level in shaping the numerical literacy skills of MA students.Conclusion: The study concludes that creative problem-solving is more potent than scientific learning in elevating the numerical literacy of MA students. Furthermore, instructional levels play a crucial role in this improvement. A synergistic effect between the teaching approach and instructional level was also found to influence the numerical literacy outcomes.

Application of matrix teaching materials using a problem based learning approach in increasing students' ability to understand mathematical concepts Rohman, Wahyu; Nindiasari, Hepsi
Desimal: Jurnal Matematika Vol. 7 No. 1 (2024): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v7i1.21964

Efforts to improve the quality of education continue to be carried out comprehensively, including aspects of knowledge, skills, attitudes, and values. Mathematics learning is understanding mathematical concepts when solving a problem. Therefore, whether or not mathematics learning has been achieved can be demonstrated if students can understand and master a given concept. This research aims to determine the increase in students' ability to understand concepts using teaching materials with a problem-based learning approach. This research used one class with 36 students. Data collection uses observation and tests. The pretest and posttest results show that the posttest results are better, namely having 10.417 points more than the pretest results. The results of the t-test analysis show a significance of 0.000. After being tested, it can be concluded that teaching materials using a problem-based learning approach are effective in improving students' ability to understand mathematical concepts.

Systematic Literature Review: Efektivitas Penerapan Problem Based Learning (PBL) terhadap Kemampuan Berpikir Reflektif Matematis Haffith, Lydia Amandha; Nindiasari, Hepsi; Khaerunnisa, Etika
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 9 No 2 (2025): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 9 Nomor 2 Tahun 2025
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v9i2.3541

Penelitian ini bertujuan untuk mengevaluasi seberapa efektif penerapan model Pembelajaran Berbasis Masalah (PBL) dalam mengembangkan kemampuan berpikir reflektif dalam matematika. Metode yang digunakan adalah Systematic Literature Review (SLR), yang fokus pada pengumpulan dan analisis berbagai hasil studi terkait topik tersebut. Berdasarkan hasil telaah literatur yang terkumpul, ditemukan bahwa penggunaan PBL secara signifikan mampu meningkatkan kemampuan berpikir reflektif matematis. Berbagai penelitian sebelumnya menunjukkan adanya tren peningkatan yang konsisten dalam kemampuan berpikir reflektif matematis setelah implementasi PBL.

Co-Authors ., Syamsuri A.A. Ketut Agung Cahyawan W Aan Hendrayana Aan Subhan Pamungkas Abdul Fatah Abdul Fatah Ade Nandang Mustafa Adelia Sektiwulan Adelia, Dita Agus Ruhimat Agustin, Faradila Ai Nurdianti Aidah Murdikah Airita Solehah Amal, Inayatul Amelia Muslimah Andini, Pungky Ayu Ani Oktafiani Anisa Nurfalah Muthy Anissa Listiana Maharani Anne Porter, Anne Anwar Mutaqin Apriatni, Sri Arif Hidayatullah Arif Hidayatullah, Arif Aslamiyah, Maulida Astuti, Liana Widya Bastian, Heri Beti Widiastuti Cecep Anwar Hadi Firdos Santosa Cecep Anwar HF Santosa Dahlia, Dini Dahlia, Dini Dewi Yuni Marfiah Dian Wahyuni Difa Tri Faizah Dito, Samuel Benny Ela Priastuti Mirlanda Ela Priastuti Mirlanda Eliana Eliana Elisa Amelia Esih Sukaesih Etika Khaerunnisa Evalina Rizky Fachri Awami Fadilah, Choirunisa Fitri Faiz, Muhammad Fakhrudin Fakhrudin Farmah, Elisha Faroman Syarief, Faroman Fauzia Hajar Hasanah Febriani, Budi Gani Sulistio Hadi Hasan Haffith, Lydia Amandha Hayati, Rohimatul Heni Pujiastuti Heri Bastian Hulwani, Almas Zati Ida Rosita Ihsanudin Ika Nuraini Ilma Nurfadilah Ilmiyati Rahayu, Ilmiyati Imam Gozali Ina Ramadina Inayatul Amal Ipat Apipah Ipat, Ipat Isna Rafianti Isnaintri, Endah Istiqomah, Firly Izzatunnisa, Rega Jaenudin Jaenudin Jozua Sabandar Juwita Ariztin Kartika Aprilia Khaeroni, Khaeroni Khaerunnisa Allutful Ilahi Khoirin Nisya Kurniawati, Eka Fitri M. Rosyadi Madadina, Madadina Maman Fathurrohman Maman Fathurrohman, Maman Maretha Septiani Dwi Astutik Martanto . Maulid, Ahmad Ihsanudin Mita Mita Muhamad Yasin Muhammad Farhan Pranata Muhammad Farhan Pranata Mustofa, Ade Nandang Mutaqqin, Anwar Nabil Fajari R Nabil Makarim Nazwa Guseynova Kamila Nena Restiana Ningrum, Anindya Kirana Putri Novaliyosi Novaliyosi Novaliyosi Nurfitria, Anita Nuriah Nuriah Nurlafifah Rosida Nurul Anriani Oom Romsih Pambudi, Gigih Pertiwi, Putri Dwi Pranata, Muhammad Farhan Pratidina, Dian Aliza Pratiwi, Ulpha Mega Putra, Deni Dwi Rachman, Faishal Rachmat Rachmat Reka Ikraami Kurniawan Ria Sudiana, Ria Rida Adhari Yanti Riza Novidona Afifah Rohmah Maysani Rohman, Wahyu Rohmatulloh Rohmatulloh Rohmatulloh Rohmatulloh Ruhimat, Agus Saleh, Hairul Saniah, Siti Lilis Saputra, Reksa Sari, Tiara Nurfitria Sektiwulan, Adelia Septiani, Awaliyah Septiani, Awaliyah Siti Lilis Saniah Siti Maryam Sari Sri Apriatni Sugiman Sugiman Sugiman Sugiman Suhendra Suhendra Sukirwan Sukirwan Sukirwan Sukirwan Sukirwan Sukirwan Sumarna, Maya Sintya Suryana, Karjono Sutihat Sutihat Sutihat, Sutihat Sutisna, Eki Syafina, Vilzha Syamsuri Syamsuri Syamsuri Syifaurrohmah Kusuma Edy Tonnie Hari Nugraha Tria Suhada Azzahra Umroh Umroh Utari Sumarmo Utomo, Muhammad Faruq Wahyu Warsito Warsito Wirawan, Nugraha Wujarso, Riyanto Yani Setiani Yaya S. Kusumah Yelly Enfiyostuti Yuyu Yuhana Yuyu Yuhana, Yuyu Zahid Nur Afita Amaliyah Zahra Fadhilah Aryoko Zahrotun, Siti

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