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All Journal Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif P2M STKIP Siliwangi MaPan : Jurnal Matematika dan Pembelajaran Journal of Honai Math International Journal on Emerging Mathematics Education Indiktika : Jurnal Inovasi Pendidikan Matematika Teorema: Teori dan Riset Matematika SJME (Supremum Journal of Mathematics Education) M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) (JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING MATHEMA: JURNAL PENDIDIKAN MATEMATIKA Jurnal Infinity
Harry Dwi Putra, Harry Dwi
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Education Mathematics Social Sciences Other

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Kemampuan Berpikir Kreatif Matematik Siswa SMP di Cimahi Putra, Harry Dwi; Akhdiyat, Agil Maulana; Setiany, Elvira Permata; Andiarani, Miranti
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 9, No 1 (2018): Kreano, Jurnal Matematika Kreatif-Inovatif 9(1)
Publisher : Jurusan Matematika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Sema

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kreano.v9i1.12473

Abstract

Penelitian ini bertujuan untuk memahami kemampuan matematis siswa di salah satu sekolah menengah pertama di Cimahi. Pendekatan penelitian yang bersifat kualitatif dengan metode analisis deskriptif. Instrumen adalah tes deskripsi yang menggunakan indikator kreatif dan kuesioner siswa. Penelitian dilakukan pada siswa kelas VIII di salah satu SMP Cimahi, yang diikuti 33 siswa. Berdasarkan hasil penelitian, ditemukan bahwa kemampuan kreativitas matematika siswa adalah kriteria yang cukup baik. Skor rata-rata siswa pada tingkat yang cukup kreatif.Faktor-faktor yang menyebabkan kesulitan belajar bahasa Inggris tidak dapat memahami grafik dengan baik, para siswa tidak dapat menentukan titik koordinat pada grafik, para siswa tidak memahami konsep dengan tepat, pengertian operasi penghitungan aljabar siswa dan juga masih lemah. Hal ini menunjukkan bahwa siswa belum terbiasa menjawab pertanyaan yang mengandung indikator kreatif.This study aims to analyse the ability of students’ mathematical creative thinking in one of the junior highschools in Cimahi. The research approach used is qualitative with the descriptive method of analysis. Theinstrument is a description test that includes indicators of creative thinking and student questionnaires. The research was conducted on grade VIII students in one of Cimahi Junior High School, which amounted to 33 students. Based on the result of research, it is found that students’ mathematical creativity ability is to good enough criteria. The average student score is at a fairly creative level. The factors that cause learningdifficulties in solving the problem of creative thinking about straight line equation are the students cannotunderstand the graph of the problem well. The students cannot determine the coordinate point on the graph.The students do not understand the concept of the equation of the line through the gradient well. The abilityof the student’s algebraic counting operation also still weak, so the answer to be wrong. This shows thatstudents are not yet accustomed to answering questions that contain indicators of creative thinking.
ANALISIS PENERAPAN PEMBELAJARAN BERBASIS PENDIDIKAN MATEMATIKA REALISTIK INDONESIA DI SD/MI KOTA BANDUNG Putra, Harry Dwi; Nurfauziah, Puji
P2M STKIP Siliwangi Vol 2, No 1 (2015): Volume 2 No. 1 Mei 2015
Publisher : IKIP Siliwangi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (862.425 KB) | DOI: 10.22460/p2m.v2i1p7-18.157

Abstract

ABSTRAK Salah satu pendekatan pembelajaran yang dapat digunakan guru berorientasi pada penerapan matematika dalam kehidupan nyata adalah Pendekatan Matematika Realistik (PMR). Di Indonesia dikenal dengan Pendidikan Matematika Realistik Indonesia (PMRI). PMR merupakan suatu teori dalam pendidikan matematika yang dikembangkan pertama kali di negeri Belanda oleh Hans Freudhental dengan nama Realistic Mathematic Education (RME). Teori ini didasarkan pada persepsi bahwa matematika adalah aktivitas manusia dan matematika harus dihubungkan secara nyata dalam konteks kehidupan siswa. Kegiatan pembelajaran lebih menekankan pada aktivitas siswa untuk mencari, menemukan, dan membangun pengetahuan, sehingga pembelajaran terpusat pada siswa. Tujuan yang ingin dicapai dari penelitian ini adalah untuk memperoleh gambaran secara mendalam mengenai proses pembelajaran matematika berbasis PMRI di SD/MI Kota Bandung dengan latar alamiah atau tanpa perlakuan. Penelitian ini merupakan penelitian kualitatif. Bentuk penelitian yang digunakan adalah participant observation dengan jenis observasi terbuka. Peneliti berperan sebagai observer langsung dan pewawancara. Dalam penelitian ini digunakan metode observasi kelas untuk mendapatkan gambaran proses pembelajaran matematika berbasis PMRI, yang kemudian akan dijadikan dasar sebagai pemilihan subjek penelitian. Penelitian ini dilaksanakan di tiga sekolah dasar, yaitu SDPN Sabang, SDPN Setiabudi, dan MIN Cicendo, sebagai sekolah mitra pembelajaran matematika berbasis PMRI. Subjek penelitian yang akan dipilih adalah siswa kelas III, karena peneliti ingin mengetahui secara khusus bagaimana penerapan PMRI terhadap materi matematika di kelas III SD/MI. Berdasarkan skor skala diferensial semantik yang dilakukan oleh dua observer rerata skor yang diperoleh oleh SDPN Sabang, SDPN Setiabudi, dan MIN Cicendo berturut-turut adalah 2,46, 2,04, dan 2,32. Ketiga rerata skor ini berada pada kriteria baik dengan interval (3, 2, 1, 0, -1, -2, -3) dan memenuhi karakteristik dalam pendekatan PMRI. Kata Kunci: Pembelajaran Matematika, Pendidikan Matematika Realistik Indonesia.  ABSTRACT One of learning approachment which can be used in Mathematics appliances in the real life is a Realistic Mathematics Approachment (PMR). In Indonesia, it is known as The Indonesian Realistic Mathematics Education (PMRI). The theory is based on the assumption that mathematics is about human activities and must be connected to the student’s real life. The purposes of the research are to describe about the process of Mathematics learning based PMRI in SD/MI in Bandung naturally. The research is qualitative and using the participant observation which used opened observation. The researcher is as an direct observer and interviewer. The research is used class observation methods to find some description about the process of mathematics learning based PMRI. The research is held in SDPN Sabang, SDPN Setiabudi, and MIN Cicendo as a school which has a PMRI based. The subjects of the research are the third grade, because the researcher want to know deeply about the application of PMRI in the third grade of SD/MI. according to the score of semantic differential scale by the two observer, the score mean (averages) of SDPN Sabang, SDPN Setiabudi, and MIN Cicendo are 2,46, 2,04, and 2,32. The three of the score is considered in the good criteria with the interval (3, 2, 1, 0, -1, -2, -3) and meets the characteristic in PMRI approachment. Key Words: Mathematics Learning, Indonesian Realistic Mathematics Education.
Karakteristik kemampuan pemahaman konsep matematis siswa kelas VII MTs Saadah, Haniyah nur; Putra, Harry Dwi; Fitrianna, Aflich Yusnita
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 6 (2023): November
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i6.17542

Abstract

One of the goals of learning mathematics is that students can demonstrate an accurate conceptual understanding of problem solving. The research was conducted at one of the MTs in West Bandung Regency. The purpose of this study was to determine the MTs students' understanding of mathematical concepts in fractional material using a qualitative descriptive method. Data collection techniques are conducting written tests, interviews and documentation on class VII students. The written test uses questions that are in accordance with the understanding of mathematical concepts. The characteristics of students' ability to understand mathematical concepts were categorized into 3, namely students who answered correctly (SMT) as many as 5 people (33.3%) on the indicator Presenting models and non-model objects of a concept and expressing concepts in various forms of mathematical descriptions, students who answered incorrectly (SKT) as many as 7 people (46.7%) on the indicator restating objects against a concept and categorizing objects according to their nature according to the concept, and students who did not answer as many as 3 people (20%) on indicators applying a concept or algorithm in problem solving.
Pengembangan bahan ajar materi statistika menggunakan pendekatan saintifik berbantuan geogebra Nurcahyati, Yoanda; Putra, Harry Dwi; Anita, Ika Wahyu
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 5 (2023): September
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i5.18492

Abstract

This study aims to determine the feasibility of developing statistics teaching materials using a geogebra-assisted scientific approach. The development research method with 3D models includes the define, design, and develop stages. The research was conducted at SMP Negeri 3 Cimahi, which is located in the Sriwijaya complex in Cimahi City. The research subjects in the small-scale trial were 15 students in class VIII-I, and in the large-scale trial, there were 33 students in class VIII-K. The data collection method used instruments in the form of interview sheets, validation sheets, and student response questionnaires. Data processing techniques used descriptive statistics with the help of the 2019 version of Microsoft Excel software were analyzed to find out the results of the validation and practicality analysis. Based on the results of the data analysis, it shows that the teaching materials developed have the interpretation of "Very Valid" and "Very practical," so that they are feasible to use.
Pengembangan bahan ajar materi garis singgung lingkaran menggunakan model problem based learning berbantuan scratch Supriatin, Cucu; Putra, Harry Dwi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol. 6 No. 5 (2023): September
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i5.20811

Abstract

This research aims to develop teaching materials that are suitable and practical for use in learning. The teaching materials developed are Student Worksheets (LKPD) using the Problem Based Learning (PBL) model assisted by Scratch. The development research model used is the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Conducted in one of the state junior high schools in Bandung City with 44 class VIII students who were divided into control classes and experimental classes. The research instruments used were LKPD validation questionnaires by experts, and student response questionnaires. The material used in the research was circle tangent material, the research results were processed using Microsoft Excel 2010. The research obtained results that the development of teaching materials on circle tangent material using the Scratch-assisted PBL model in terms of validity and practicality was in the good category. The validation results from material experts were 96.8%, validation from media experts was 95.2%, and validation by practitioner experts was 96%.. The results of the student response questionnaire were 77.16% in the practical category.
Analysis of Elementary School Student's Mathematical Communication Ability on Statistics Roswahyuliani, Lestari; Putra, Harry Dwi; Widiartini, Amas; Hendriana, Heris
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 4 (2023): VOLUME 6 NUMBER 4, DECEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i4.18254

Abstract

Students' difficulty in communicating a problem into a mathematical model is one of the important things that must be corrected. This research was carried out based on the results of a preliminary study which showed that students' mathematical communication skills in statistics material were stull low. This study aims to determine students' difficulties in solving application problems. The research method used in this research is qualitative. This research was conducted in an elementary school in West Bandung Regency with 32 V class students as subjects. The instruments used in this study were a descprition test consisting of four questions and interviews. The indicators of mathematical communication used are : (1) Expressing everyday events in symbols or mathematical language, (2) Explain ideas, situations, and mathematical relations with real objects, pictures, graphs, and algebra, (3) Expressing images in the form of ordinary language, (4) Read with comprehension a written mathematical presentation The results of the study show that students still have difficulty communicating the given application problems, especially in making diagrams. Students feel confused in communicating from ordinary forms into diagrammatic forms. Students are confused in determining the value and frequency in the form of a diagram. students also have difficulty reading diagrams and changing the results of the diagrams into ordinary language.
The Development of Problem Based Learning Desmos-Assisted Digital Worksheet for Trigonometry Function Yulianti, Neneng; Putra, Harry Dwi
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 4 (2023): VOLUME 6 NUMBER 4, DECEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i4.18432

Abstract

Research purposes was  to develop digital Student Worksheets (LKPD) based on the Problem Based Learning (PBL) approach on trigonometry material using Desmos and to find out the feasibility analysis this worksheets. The research method uses Analysis Design Development Implementation Evaluation (ADDIE). In the analysis stage, literature studies, observations and interviews were carried out to find out  difficulties during blended learning, followed by designing and developing media by utilizing the various features  in Desmos. At the implementation stage,  validation is carried out to test the feasibility of the e-LKPD  by two experts on media and materials. The results of the expert validation on the feasibility of the e-LKPD on the media aspect obtained a value of 73,14% with the appropriate criteria, while the material aspect obtained a value of 75,00% with the appropriate criteria. The most prominent of this e-LKPD is animation which shows the interactiveness and able to spur students  to discover and generalize the concept of the graph of the sine function of the unit circle. In the final stage a limited test was conducted in a small group of six students at SMAN 1 Lembang and get a response score of 76,74% was obtained with very good criteria.
Improving Junior High School Student’s Mathematical Understanding Ability using Discovery Learning Model on Relation and Function Material Rusmawan, Rusmawan; Putra, Harry Dwi; Hendriana, Heris
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 7 No. 1 (2024): VOLUME 7 NUMBER 1, MARCH 2024
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v7i1.18499

Abstract

The ability of students' mathematical understanding is one of the aspects needed by students in learning mathematics. With the ability to understand mathematics will make it easier for students to solve problems because students will be able to relate and solve these problems with the concepts they have understood. This study aims to see the improvement of the mathematical understanding ability of junior high school students using a discovery learning model on Relation and Function material. The type of this research is Classroom Action Research with the research sample being all grade VIII students in one of the junior high schools in West Bandung. This study consists of 2 cycles where each cycle consists of planning, action and implementation, observation and reflection stages, with before and after the study given 2 test instrument in the form of a description. In each cycle there is an activity observation sheet. Meanwhile, to analyze the data, it is seen from the test results provided, then all data and data results are processed using SPSS software. The results of this study showed that there was an increase in the completeness of learning scenarios for teachers by 92.31% and for students by 81.25%. In addition, the results of filling out the tests given each cycle showed good results with the number of students who scored above the minimum completeness criteria in cycle I by 73.08% and cycle II by 81.88%, meaning an increase of 8.8%. Based on this, it is expected that educators can apply the Discovery Learning Model with good planning and implementation so that student learning outcomes on relation and function material can increase.
The Development of Problem Based Learning Google Sites-Assisted Digital Teaching Materials to Improve Students' Mathematical Critical Thinking Ability Nurdin, Irfan Taufik; Putra, Harry Dwi; Hidayat, Wahyu
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 6 No. 4 (2023): VOLUME 6 NUMBER 4, DECEMBER 2023
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v6i4.18520

Abstract

Mathematics learning has a very important role in the educational environment. That one of the competency standards for graduates of the mathematics subject for elementary to secondary education units is so that students have the skills to think and act creatively, productively, critically, independently, collaboratively and communicatively. Based on these graduate competencies, it is clear that one of the thinking skills that students must have is critical thinking. The purpose of this study was to look at students' mathematical critical thinking skills whose learning used the Problem Based Learning (PBL) model through digital teaching materials . This study uses the Research and Development (R&D) method with the ADDIE development model which consists of 5 (five) stages, namely: Analysis , Design , and Development , Implementation and Evaluation on MTs . The research subjects were 20 students of class VI I I MTS (twenty) students. Data collection techniques used were walkthroughs, questionnaires, questionnaires, interviews, and tests. Research data were analyzed quantitatively and qualitatively. The results of data analysis are known that this research produces students' critical thinking mathematics for digital teaching materials through a problem-based learning model in a flat sided geometric content that is valid and has potential effects. In this case, mathematics teaching materials that are presented digitally with a problem-based learning approach model are obtained from the results of one-to-one revisions , expert revision, small group trials and large group trials . Furthermore, the prototype of digital teaching materials is in the form of Google sites This is in addition to being effective, efficient, valid and practical, it also has a potential effect to improve students' critical thinking skills in mathematics.
The Implementation of Constructive Approach to Improve Students' Problem Solving Ability and Self Concept Ability Ruchiyat, Radifan Irsaly; Putra, Harry Dwi; Hendriana, Heris
(JIML) JOURNAL OF INNOVATIVE MATHEMATICS LEARNING Vol. 7 No. 1 (2024): VOLUME 7 NUMBER 1, MARCH 2024
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jiml.v7i1.18586

Abstract

The ability to solve mathematical problems is very important because it is one of the abilities that belong to the ability to think at a high level, therefore it must be trained. One of the factors that can support this is self-concept in doing something and especially in learning mathematics, but this is inversely proportional to the field which stated that self-concept and mathematical problem-solving abilities were still relatively low, the panelists were interested in conducting a research entitled the application of a constructivist approach to improve mathematical problem-solving abilities and self-concept of junior high school students, this study used the experimental method using experimental design and schematized by researchers therefore the researcher chose Krida Utama Middle School Jl. Gedong Lima No. V, Kertamulya, Kec. Padalarang, of course, with class divisions, namely an experimental class and a control class of 30 students. To measure mathematical problem-solving abilities and self-concept towards mathematics, the researcher makes a design or learning that is by the approach and makes measurement tools clear and accurate to see the results of constructivism learning, in the final posttest results from the experimental class obtains a Ngain value of 0.5968 in the learning category the experimental class has a pretty good category, and from the results of distributing the Self Concept questionnaire to learning mathematics using the constructivism approach it gets a percentage score of 77.71%, this indicates that learning using the constructivism approach can have a good effect on students' mathematical problem-solving abilities and concepts students towards learning mathematics.
Co-Authors Abdullah, Nur Aflich Yusnita Fitrianna Akbar, Muhamad Fijar Rotul Akhdiyat, Agil Maulana Andiarani, Miranti Anik Yuliani Arti Maryanti Asep Ikin Sugandi Assya, Lily Aulin Astuti, Veni Aprilia Dwi Danny, Firman Desi Desi, Desi Devi Nurul Yuspriyati, Devi Nurul Dini Apriani, Dini Fauziyyah, Herlina Fauzy, Alwan Haji, H Saleh Heris Hendriana Ida Nurhayati Ihwana, Mirna Ika Wahyu Anita Jaenal, Enjang Komariah, Euis Nur Lathifah, Adiska Nadiyah Mardiansyah, Dian Miftahudin, Rifqi Aulia Mulyadi, Magdalena Mustika, Chintya Zulvi Nelly Fitriani, Nelly Nurcahyati, Yoanda Nurdin, Irfan Taufik Pratiwi, Fresty Restu Pratiwi, Meitia Putri Puji Nurfauziah, Puji Putri, Astriana Ronny, Renata Teddy Roswahyuliani, Lestari Ruchiyat, Radifan Irsaly Rusmawan Rusmawan, Rusmawan Saadah, Haniyah nur Salsabila, Hilma Sendi Ramdhani Septripiyani, Kesi Setiany, Elvira Permata Siti Rosidah Sodik, Rahmat Suhartini, Tutin Supriatin, Cucu Supriatna, Tatang Tatang Herman, Tatang Utari Sumarmo Wahyu Hidayat Wardani, Adeliasari Kusuma Widiartini, Amas Yulianti, Neneng Yumiati