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All Journal Jurnal Infinity AKSIOMA: Jurnal Program Studi Pendidikan Matematika Al Ishlah Jurnal Pendidikan MaPan : Jurnal Matematika dan Pembelajaran ABDIMAS SILIWANGI JURNAL PENDIDIKAN TAMBUSAI Teorema: Teori dan Riset Matematika SJME (Supremum Journal of Mathematics Education) Jurnal Cendekia : Jurnal Pendidikan Matematika Journal on Education Symmetry: Pasundan Journal of Research in Mathematics Learning and Education JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Indonesian Journal of Pharmaceutical Education Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang JNPM (Jurnal Nasional Pendidikan Matematika) Jurnal Infinity Jurnal Didaktik Matematika
Fitriani, Nelly
IKIP SILIWANGI BANDUNG
Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Education Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Social Sciences Other

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Live Worksheet Realistic Mathematics Education Berbantuan Geogebra: Meningkatkan Abstraksi Matematis Siswa SMP pada Materi Segiempat Nelly Fitriani; Isna Sani Hidayah; Puji Nurfauziah
JNPM (Jurnal Nasional Pendidikan Matematika) Vol 5, No 1 (2021)
Publisher : Universitas Swadaya Gunung Djati

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1373.028 KB) | DOI: 10.33603/jnpm.v5i1.4526

Abstract

Abstrak. Pembelajaran secara daring merupakan salah satu cara mengajar yang efektif saat kondisi pandemi seperti saat ini, namun tentunya pembelajaran harus dikemas dengan baik, salah satunya seperti pada penelitian ini. Penelitian ini bertujuan untuk mengembangkan bahan ajar menggunakan live worksheet berbasis realistic mathematics education (RME) berbantuan geogebra yang validitasnya baik dan juga praktis, kemudian menelaah pencapaian kemampuan abstraksi dengan menggunakan bahan ajar tersebut. Metode penelitian yang digunakan adalah pengembangan, dengan subjek yaitu siswa SMP. Instrumen yang digunakan yaitu lembar validasi, lembar observasi dan soal tes abstraksi. Teknik pengolahan data yang digunakan adalah dengan mengolah data menggunakan rumus validasi dan praktikalisasi dan menggunakan uji t satu pihak. Hasil penelitian yang diperoleh yaitu 1) bahan ajar sangat valid, dengan rata-rata penilaian validator sebesar 85% (bahan ajar sudah dapat digunakan), terlebih dalam pembelajaran daring seperti saat ini; 2) bahan ajar sangat praktis untuk digunakan, dengan rata-rata penilaian yang diberikan oleh siswa sebesar 82%; 3) pencapaian kemampuan abstraksi siswa kelas yang menggunakan pembelajaran dengan bahan ajar  live worksheet berbasis RME berbantuan geogebra lebih baik dari pada yang menggunakan pembelajaran saintifik. Rekomendasi yang dapat diberikan adalah penggunaan live worksheet berbasis RME berbantuan geogebra menunjukkan hasil yang signifikan terhadap pembelajaran dan kemampuan abstraksi siswa.Kata Kunci: realistic mathematics education, geogebra, live worksheet, abstraksi matematis, segiempat
Penerapan model discovery learning berbantuan e-LKPD untuk meningkatkan kemampuan komunikasi matematis siswa kelas X MA pada materi SPLTV Rezki Adelima Lubis; Nelly Fitriani; Ratna Sariningsih
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 4 (2023): Juli
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i4.17783

Abstract

This study aims to obtain a description of the application of the e-LKPD assisted discovery learning model in an effort to improve students' mathematical communication abilities and to find out differences in students' mathematical communication abilities before and after being given treatment with the e-LKPD assisted discovery learning model for class X MA Miftahul 'Ulum on SPLTV material. The sample in this study was students of class X IPA MA Miftahul 'Ulum with a total of 10 students. The method used in this research is experimental research with the instrument used is a test of mathematical communication ability. Data analysis was carried out using the Pre-Experimental Design method in the form of One Group Pretest-Posttest Design. The results showed that there was an influence of the e-LKPD-assisted discovery learning model on students' mathematical communication abilities, seen in the results of data analysis with Ltest <Ltable 5%, which means that there were differences in students' mathematical communication abilities before and after treatment of e-assisted discovery learning models. LKPD on SPLTV material.
Pengembangan bahan ajar saintifik berbantuan scratch pada materi segiempat dan segitiga Elna Nurhasanah; Martin Bernard; Nelly Fitriani
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 4 (2023): Juli
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i4.18406

Abstract

The purpose of this study was to analyze the feasibility and practicality of scientific teaching materials assisted by scratch. This development research was conducted using the 4D method which was limited to the third step including the define, design, and development stages. At the feasibility and practicality test data analysis stage, data were collected through observation, questionnaires, and documentation. The feasibility of teaching materials is analyzed based on the results of expert validation and the practicality of teaching materials based on the results of student answers.  The results of this study indicate that the teaching materials tested are feasible and practical as learning materials for students. This is based on the results of validation by experts on the practicality of teaching materials filled in by students. The results of expert validation resulted in an average score of 91.83% with a very valid category, which can be said to be suitable for use in the field. The results of the practicality questionnaire analysis show that teaching materials are considered practical by students with a percentage of 85% on a small scale and 87% on a wide scale with a very practical category. This can show that the scientific teaching materials for quadrilateral and triangle materials assisted by scratch are very good for use during the math learning process.
The Development of Prism and Pyramid Teaching Material Assisted by Construct 2 Software Euis Suwangsih; Nelly Fitriani; Utari Sumarmo
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 3 (2023): VOLUME 6 NUMBER 3, SEPTEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i3.18293

Abstract

The aim of the research is to develop teaching materials assisted by media construct 2 software that are practical and appropriate for use in the learning process. The research method used is Research and Development (R&D) using the ADDIE model. The research was conducted at SMPN 3 Rancabali  with 12 class VIII students at Rancabali 3 Middle School for limited trials and 9 students at SMPN 2 Rancabali and 9 students at SMPN 1 Rancabali Public for a wider trial and 27 VIII C class students as an experimental class and 27 class VIII A students as the control class for product trials. The validators consist of ICT experts, subject matter experts and teachers. The data collection technique was in the form of a response questionnaire from students and teachers. The research results of the products developed were in accordance with the ADDIE research method with product feasibility categories based on ICT expert validation of 81.25%, material experts 85% and teachers 88% are all included in the very decent category. Products that have been validated are then tested on students through limited trials, wider trials and product trials and students are given practicality questionnaires with a final average result of 83.56% included in the very practical category. Based on the validation results of ICT experts, material experts and student and teacher responses, it was concluded that the teaching materials assisted by the media construct 2 software are valid and appropriate for use in learning. For further research, the researcher hopes to be able to develop teaching materials better according to the suggestions from the respondents.
Efektivitas Emulsi Ekstrak Rimpang Temulawak Sebagai Amara pada Mencit dengan Teknologi Potrtable Surya Permana; Wildan Wildan; Santi Santi; Nelly Fitriani
Indonesian Journal of Pharmaceutical Education Vol 3, No 3 (2023): September-Desember 2023
Publisher : Jurusan Farmasi Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37311/ijpe.v3i3.22409

Abstract

Temulawak rhizome (Curcuma xanthorrhiza Roxb.) is a plant that can increase appetite. The purpose of this study was to determine the concentration of the most effective emulsion working as amara in white male mice (Mus musculus). This study uses a sample extract Temulawak rhizomes (Curcuma xanthorrhiza Roxb.) at concentrations of 10%, 20%, and 30% were emulsified by testing the parameter requirements for evaluating emulsion preparations and their effectiveness as amara against white male mice (Mus musculus) by oral administration and positive control using Curvit syrup and aquadest as negative controls. The results of the physical evaluation of emulsion preparations included organoleptic tests, homogeneity tests, pH tests, viscosity tests and emulsion type tests. Tests for weight gain resulted in the difference between initial body weight and body weight after treatment for 21 days with an average of 1.6 grams at a concentration of 10%, a concentration of  20% of 2.2 grams, and a concentration of 30% of 4.2 grams. Based on statistical tests using one-way ANOVA and post-hoc tests, it can be concluded that the emulsion preparations extract temulawak rhizome (Curcuma xanthorrhiza Roxb.) has amara effectiveness at concentrations of 10%, 20%, and 30%, and at a concentration of 30% the greatest increase in body weight.
ANALISIS KESULITAN PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL PADA PEMBELAJARAN DARING Winda Nuraeniah; Nelly Fitriani; Risma Amelia
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 5 No. 1 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i1.p%p

Abstract

This study aims to determine the student difficulties in the SPLDV material. This research is a quantitative descriptive study that examines students difficulties yn the SPLDV material based on indicators (1) Modeling the SPLDV (2) Analyzing the completion of the SPLDV (3) Finding the solution to the SPLDV using Elimination and Subtitution methods (4) Summarizing the grap and (5) Linking the SPLDV in everyday life. The research was carried out in one of the private junior high school in Padalarang. The subjects of this research ere 15 students who have studied the SPLDV material. The data collection is by giving questions to student. The data analysis technique went though three stages, namely data reduction, data presentation, and conclusion. The results of the study show that there are still students who have difficulty in concluding the indicators of the graph, this can be seen from the average value of 27% which belong to the very poor category. It is also found that the factors that make the indicators on the SPLDV material esperience difficulties are the lack of accuracy when working on problems, difficulty in classifying known objects, and not mastering the concepts and principles of SPLDV.
ANALISIS KESULITAN SISWA DALAM MENYELESAIKAN SOAL-SOAL PADA MATERI BANGUN RUANG SISI DATAR (BRSD) Dikdik Adi Putra; Risma Amelia; Nelly Fitriani
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 5 No. 1 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i1.p%p

Abstract

This study aims to analyze the students' difficulties in solving problems on the flat side of the space. The method used in this study is a qualitative descriptive method with the population used is 26 junior high school students in one of the schools in Cianjur Regency. The data collection technique carried out in this qualitative descriptive study was carried out by giving a description test question of 5 questions. The data analysis technique used is data reduction, data presentation and concluding research results. The conclusion of the data is taken from the percentage of the question indicators and then concludes the average results of the overall indicators. The result of this research is that students are still wrong in solving flat-sided space problems, precisely on questions number 4 and 5, with the indicator for question no 4 is determining the volume of cubes and blocks and question number 5 with indicators determining the surface area of the pyramid. The difficulty of students in solving questions number 4 and 5 is that students do not understand the problems contained in the questions so that students are wrong about taking steps in solving problems. In addition, students' errors in solving flat-sided geometrical problems are (1) negligence in analyzing the problem; (2) Lack of students' accuracy in answering questions; (3) It is difficult to determine how to answer the question.
RELATIONSHIP BETWEEN MISCONCEPTION AND MATHEMATICAL ABSTRACTION OF GEOMETRY AT JUNIOR HIGH SCHOOL Gida Kadarisma; Nelly Fitriani; Risma Amelia
Jurnal Infinity Vol 9 No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p213-222

Abstract

This study aims to examine the misconceptions that often occur in junior high school students on the concept of geometry based on abstraction level. The research method is qualitative with a case study design. Subjects in this study are 27 students of the 3rd grade of junior high school students, who had to learn all the concepts that will be appeared on the test. Material that will be given on the test of this research is the concept of Triangle, Quadrilateral, Flat Side Geometry and Curved Side Geometry. This research takes a place at one of the junior high schools in Cimahi. The instrument in this study is a diagnostic test (to find out the types of students’ misconception), mathematical abstraction tests (to determine the level of abstraction) and interview rubrics. Misconceptions produced by students are closely related to students’ mathematical abstractions, the higher the level of abstraction ability, the more students away from misconceptions. The topic taken in this study is the topic of basic geometry, the results can be a source of information about the types of misconception that often occur in students, and how the solution so that these misconception do not re-occur.
Mathematical Abstraction of Year 9 Students Using Realistic Mathematics Education Based on the Van Hiele Levels of Geometry Heris Hendriana; Nelly Fitriani
Didaktik Matematika Vol 6, No 1 (2019): Jurnal Didaktik Matematika
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jdm.v6i1.13285

Abstract

Previous research regarding abstraction has not discussed abstraction qualitatively based on van Hiele levels. Thus, it is necessary to study abstraction analysis based on van Hiele levels through Realistic Mathematics Education (RME) approach. The purpose of this research was to analyze mathematical abstraction based on van Hiele levels of geometry (VHLG) through RME and traditional learning approach reviewed from the levels of prior knowledge. This research employed a descriptive qualitative method involving Year 9 junior high school students as the subjects. The instruments were a mathematical abstraction test, van Hiele geometry test, and interview guidelines. The results of the high- and medium-ability students in the classroom using RME approach showed that VHLG was at the Deduction level and the abstraction ability was dominated by Empirical and Reflective Abstraction, whereas the low-ability students are at the level of Abstraction, they had imperfect Empirical and Reflective Abstraction. As for the high-ability students in the traditional learning classroom, the VHLG was at the level of Abstraction; their Reflective Abstraction was at the Representation level. While concerning the low- and medium-ability students, the VHLG was at the Analysis level; they mastered the Reflective Abstraction at the level of Recognition. This study indicates that the RME approach can trigger the development of mathematical abstraction, and accelerate the van Hiele levels of geometry progress.
Co-Authors Alwan Fauzy Amelia, Risma Apri Kurniawan Arpin Chronika Asep Yusuf Asri Septihani Bunga Permaganti Citra Aditia Rahayu Dara Kartika Dewi Diana Diana Dikdik Adi Putra Dinda Safrima Sekar Kinanthi Efrina Rahmadhani Eka Senjayawati Elis Hana Solihat Elis Nurhayati Elna Nurhasanah Ernawati Ernawati Eti Rohaeti, Euis Euis Eti Rohaeti Euis Suwangsih Fitri Nurhalisa Fitri Utami Geraldi Valeska Heryadi Putra Gida Kadarisma Helmi Ilham Nabila Heris Hendriana Hikmal Setiawan Hikmal Setiawan Indah Puspita Sari Intan Nuraeni Isna Sani Hidayah Jozua Sabandar Kalvia Shania Ramadhania Keni Eviliasani Laelasari Laelasari Leni Nurhayati Leni Sulasmini Linda Linda Lusiana Tika Syafitri M Zulfikar M. Afrilianto Martin Bernard Melisari Melisari Muhammad Raka Jaya Murni Chintia Nadia Putri Setiana Naskia Achmad Nenden Fatimah Nia Rahmawati Nirwanty Angela Al Ghani Novi Yuniarti Novia Putri Denati Pertiwi, Citra Megiana Puji Nurfauziah Puji Nurfauziah Ratna Sariningsih Ratni Purwasih Rezki Adelima Lubis Rippi Maya Rizki Mulyawati Ruslan Mubarok Samsul Maarif Santi Santi Selvia Agina Seni Marwanti Siti Sarah Khodijah Surya Permana Tupa Minokti Utari Sumarmo Wahyu Nurzaman Wahyu Setiawan Wahyu Setiawan Widya Ayu Agustini Wildan Wildan Wina Nur Alifah Suherman Winda Nuraeniah Yeti Jumiati Yuni Sapitri