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ANALISIS KESALAHAN SISWA SMA DAN SMK PADA MATERI BANGUN RUANG SISI DATAR BERDASARKAN KEMAMPUAN SPASIAL SISWA Geraldi Valeska Heryadi Putra; Rippi Maya; Ratni Purwasih; Nelly Fitriani; Puji Nurfauziah
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 6 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i6.10841

Abstract

In this study, the purpose of analyzing how students' mistakes in building flat side rooms based on spatial abilities. This type of research is descriptive and qualitative. The sample used was 4 students which included 2 high school students in class XII with female gender, and 2 students of SMK class XII with male gender. The data collection technique is in the form of an instrument with a spaceability test, which consists of 4 description questions. The analysis technique used is based on watson criteria. Referring to Watson's criteria, students still make 4 mistakes caused due to several internal and external factors, these errors include incorrect data, improper procedures, skill hierarchy problems, and errors other than the seven above.
MODEL PEMBELAJARAN DISCOVERY LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA KELAS IXE SMP BHAKTI MULYA BATUJAJAR Novia Putri Denati; Nelly Fitriani; Citra Megiana Pertiwi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 5 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i5.10995

Abstract

This research is a classroom action research. The purpose of this study is to describe the application of the discovery learning model and to determine student learning outcomes after the application of the discovery learning model to mathematical problem solving abilities. The subjects of this research were 12 students of class IX E SMP Bhakti Mulya Batujajar in the academic year 2021/2022. Data collection techniques through pretest and posttest, teacher and student observation sheets, interviews and questionnaires. This research was conducted in 2 cycles with each cycle consisting of 2 meetings. Data analysis was carried out quantitatively and qualitatively. The results showed that the application of the discovery learning model went well and had an impact on increasing students' mathematical problem solving as seen from: 1) students were able to understand problems as many as 10 people (83%), 2) students were able to plan problem solving strategies as many as 9 people ( 75%), 3) students were able to do problem solving strategies as many as 10 people (83%), 4) students were able to check the correctness of the answers or the results obtained as many as 8 people (67%). Based on the description above, it is concluded that the application of the discovery learning model can improve mathematical problem solving abilities.
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMAHAMAN MATEMATIS SISWA SMP KELAS VII PADA MATERI PERTIDAKSAMAAN LINEAR SATU VARIABEL Kalvia Shania Ramadhania; Nelly Fitriani; Puji Nurfauziah; M. Afrilianto
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 5 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i5.11018

Abstract

The purpose of the study was to analyze and determine the effect of the problem based learning model on the mathematical understanding ability of junior high school students on the material of one variable linear inequalities. This research is a classroom action research, which was carried out for 2 cycles. The subjects in this study were students of class VII-I of SMP Negeri 1 Cipatat in the academic year 2021/2022 with a total of 16 students. The test instrument used in the form of a description of the problem using indicators of mathematical understanding ability as many as 4 numbers on the material of one variable linear inequalities. How to process the data in the study obtained from normalized gain data, with the results of student answers in this study a score of 0.60. This shows that the students' mathematical understanding ability is increasing, with a moderate category. The non-test instrument used in the form of a scale questionnaire of students' interest in learning mathematics as many as 14 statement items containing balanced positive and negative statements. The result of the response of students' interest in learning mathematics has a strong influence on the achievement of students' mathematical understanding, which is 76.3 with a strong category.
ANALISIS KESULITAN SISWA SMK KELAS X DALAM MENYELESAIKAN SOAL MATERI LOGARITMA Seni Marwanti; Wahyu Setiawan; Nelly Fitriani
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 6 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i6.10900

Abstract

This research aims to describe the results of the analysis of the difficulties of class X SMK students in solving logarithm material problems. The research method used in this study is a qualitative descriptive method. The subjects of the study were 14 students of class X Nurses at SMK Kesehatan Bakti As-Syukur. The research instrument consisted of 5 logarithm material test questions. The data collection technique used in this study was in the form of test results by looking at the location of students' errors in solving questions. The data processing technique used is to calculate the percentage of student mastery of the questions with Microsoft Excel 2010 to be able to analyze student difficulties. The results of the study show that only question number 3 has a percentage of mastery of the material which is still below 72% so it can be said that most students still have difficulty in solving problem number 3 which has indicators of manipulating logarithm forms based on logarithm properties. From the results of the analysis, it can be concluded that the difficulty of class X SMK students in solving logarithm problems lies in the indicators of manipulating the logarithm form based on the properties of logarithms, namely; (1) Students have difficulty in simplifying.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL MATERI PERSAMAAN GARIS LURUS BERDASARKAN PROSEDUR NEWMAN Nia Rahmawati; Nelly Fitriani; Indah Puspita Sari; Citra Megiana Pertiwi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 5 (2022): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v5i5.10217

Abstract

This study analyzes students' errors in doing exercises on the material of Straight-Line Equations (PGL) based on the Newman procedure. This research was conducted at one of the schools in Cianjur area, with the research subject of 12 students. The method used in this analysis is the qualitative descriptive method because it will describe the form of student errors. The data collection technique uses 5 test items. The questions were made according to the predetermined indicators of achievement of basic competencies. Furthermore, based on students' answers, the researcher analyzed the extent to the students' errors in solving PGL questions. The results showed that: (1) 50% had errors in reading problems, namely students were less careful; (2) 16.7% experienced errors in understanding the problem, namely not being able to understand (3) 66.7% experienced problem transformation errors, namely difficulties in making graphs from the instructions presented, and students did not correctly convert the information obtained into PGL graphs; (4) 50% experienced errors in process skills, namely students were not able to solve the problems and be careless in the calculation process; (5) 83.3% experienced writing errors/answer notation, namely incorrectly in writing negative signs, symbols, equals signs, not writing variables and conclusions.
DEVELOPMENT OF JUNIOR HIGH SCHOOL MATHEMATICS TEACHING MATERIALS ASSISTED BY GEOGEBRA SOFTWARE WITH A CONTEXTUAL APPROACH TO IMPROVE MATHEMATICAL CREATIVE THINKING: PENGEMBANGAN BAHAN AJAR MATEMATIKA SMP BERBANTUAN SOFTWARE GEOGEBRA DENGAN PENDEKATAN KONTEKSTUAL UNTUK MENINGKATKAN PEMIKIRAN KREATIF MATEMATIS Hikmal Setiawan; Nelly Fitriani; Jozua Sabandar
MaPan : Jurnal Matematika dan Pembelajaran Vol 10 No 2 (2022): DECEMBER
Publisher : Department of Mathematics Education Faculty of Tarbiyah and Teacher Training Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/mapan.2022v10n2a3

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The purpose of this study was to develop mathematics teaching materials assisted by geogebra media on the mathematical creative thinking abilities of seventh-grade students of junior high school. Implementation of teaching materials using geogebra-assisted media is a way to help students understand mathematics learning, especially in quadrilateral material. For the quality teaching materials to meet the criteria of being valid, practical, and effective. This research uses a type of research and development (R&D). In this research, a development model is used, namely the ADDIE model. The ADDIE model is a research and development model consisting of 5 (five) stages, namely analysis, design, development, implementation, and evaluation. The results obtained from this study are the validity of teaching materials that are declared very valid with teaching materials that have been developed using geogebra assistance produces valid and practical teaching materials for the learning process with the results of an average validity value of 96.93% and an average practicality value of 94.6%. Suggestions that can be given are to take advantage of the teaching materials that have been developed so that educators or students can take advantage of teaching materials carried out remotely online or offline. Then other researchers can develop this teaching material on other mathematics material so that it can be utilized by other audiences.
ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL PERSAMAAN GARIS LURUS BERDASARKAN TEORI NEWMAN DAN MINAT BELAJAR SISWA Fitri Utami; Rippi Maya; Nelly Fitriani; Gida Kadarisma
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 6, No 2 (2023): Maret
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i2.11311

Abstract

This study aims to dissect the students’ errors in solving math essay-test using Newman’s error category and analyze the students’ learning interest in the straight-line equation. The exploration carried out utilizes the constructivist approach as well as a form of descriptive exploration. The subjects of this exploration are the 8th-grade students of SMP in Kabupaten Bandung Barat in the academic year 2021/2022. The device in this exploration is in the form of 4 questions which are analyzed using Newman's proposition and non-tests in the form of a student learning the interest scale conforming to 18 questions. Grounded on the results of data analysis, it was concluded that scholars made (1) errors in reading the question; (2) errors in learning the problem; (3) errors when transubstantiation the problem; (4) errors when procedural skills; and (5) writing errors in the final answer. The affair of this study proves that students' interest in learning the material of straight-line equations is included in the strong classification.
PENERAPAN PENDEKATAN KONTEKSTUAL TERHADAP KEMAMPUAN KOMUKASI MATEMATIS SISWA PADA MATERI PERSAMAAN LINEAR SATU VARIABEL Elis Hana Solihat; Eka Senjayawati; Nelly Fitriani; Tupa Minokti
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 6, No 2 (2023): Maret
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v6i2.13910

Abstract

The purpose of this study was to examine students' mathematical communication skills which included the material of Single Variable Linear Equation (PLSV) using a contextual approach. The type of research used is Classroom Action Research (CAR) with the subject of this research are 15 students of class VII-D in one of the public junior high schools in Cimahi city in the even semester of 2021-2022 which has a Minimum Completeness Criteria (KKM) value of 7.00. The data collection technique was carried out by conducting an initial test which was carried out before the action (pre-test), then doing the first cycle test and the second cycle which was carried out after giving the action (post-test), each cycle was carried out in 2 meetings. From each of the test questions, the results obtained that aspects of students' mathematical communication skills always increased from each cycle. Based on the data obtained in the initial pre-test there were 26.7%, the first cycle was 40%, there was an increase in the second cycle, namely 86.67% of students who completed. The conclusion of this study is that the mathematical communication skills of seventh grade junior high school students using a contextual approach can be improved.
PENGEMBANGAN MODUL MERDEKA BELAJAR MATEMATIKA BERFORMAT FLIPBOOK UNTUK MENINGKATKAN PENALARAN KRITIS DAN KEMANDIRIAN SISWA SMP Nelly Fitriani; Samsul Maarif
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 12, No 1 (2023)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (692.124 KB) | DOI: 10.24127/ajpm.v12i1.6820

Abstract

Penelitian ini memiliki tujuan yaitu mengembangkan modul merdeka belajar matematika berformat flipbook  dan menelaah pencapaian penalaran kritis dan kemandirian siswa sebagai tolak ukur efektivitasnya. Penelitian ini menggunakan metode penelitian pengembangan dengan disain ADDIE. Instrumen yang digunakan dalam penelitian ini yaitu lembar validasi dan praktikalisasi, soal tes penalaran kritis juga angket kemandirian. Pengolahan data yang digunakan dalam penelitian ini yaitu dengan mengolah data validitas modul dan juga kepraktisannya, selain itu juga dilakukan analisis statistika inferensial untuj uji dua sampel independen. Hasil penelitian yang diperoleh yaitu 1) Modul merdeka belajar matematika berformat Flipbook (e-modul) ini Valid dan Praktis untuk digunakan; 2) Penalaran kritis dan kemandirian belajar siswa yang pembelajarannya menggunakan modul merdeka belajar matematika berformat Flipbook (e-modul) lebih baik daripada yang menggunakan pembelajaran biasa, sehingga dapat disimpulkan bahwa modul yang dikembangkan efektif. The purpose of this study was to develop an independent learning mathematics module in flipbook format and to examine the achievement of critical reasoning and the independence of students as a measure of its effectiveness. This study used the development research method with the ADDIE design. The instruments used in this study were validation and practicalization sheets, critical reasoning test questions as well as an independence questionnaire. The data processing used in this study is by processing the validity of the module data and also its practicality, besides that, inferential statistical analysis is also carried out to test two independent samples. The research results obtained are 1) The independent learning mathematics module in Flipbook format (e-module) is valid and practical to use; 2) Critical reasoning and independent learning of students whose learning uses the independent learning mathematics module in Flipbook format (e-module) is better than those using ordinary learning, so it can be concluded that the developed module is effective.
ANALISIS KEMAMPUAN PENALARAN MATEMATIK SISWA SMP DIKABUPATEN BANDUNG BARAT PADA MATERI BARISAN DAN DERET M Zulfikar; Naskia Achmad; Nelly Fitriani
Jurnal Pendidikan Tambusai Vol. 2 No. 3 (2018): December 2018
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.565 KB) | DOI: 10.31004/jptam.v2i3.173

Abstract

Abstrak Penalaran merupakan salah satu kemampuan matematik yang penting untuk dimiliki siswa, khususnya pada tingkat sekolah menengah. Kemampuan penalaran matematik akan membantu siswa dalam lebih memahami suatu konsep secara bermakna (meaningfull learning) tidak sekedar mengingat fakta, aturan dan langkah-langkah penyelesaian masalah. Tujuan dari dilakukan penelitian ini adalah untuk menganalisa kesulitan-kesulitan siswa SMP dalam menyelesaikan soal kemampuan penalaran matematik pada materi baris dan deret.Adapun metode penelitan yang digunakan adalah kualitatif deskriptif. Sampel penelitian ini berjumlah 30 orang, kemudian diambil secara purposive sampling sebanyak 6 orang yang menjadi sampel dengan kemampuan tinggi, sedang, dan rendah. Untuk meneliti kemampuan penalaran matematik yang dimiliki keenam siswa tersebut disediakan 4 soal sebagai instrumen tes. Selanjutnya hasil yang diperoleh menyatakan bahwa kemampuan penalaran matematik siswa SMP di kabupaten Bandung Barat masih tergolong kurang.