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ANALISIS KESALAHAN SISWA BERDASARKAN KATEGORI NEWMAN DALAM MENYELESAIKAN SOAL MATERI FUNGSI Iis Asriah Nurfalah; Chandra Novtiar; Euis Eti Rohaeti
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 1 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i1.p%p

This is a qualitative descriptive research with 20 students from class X PFPT-A SMKN 1 Cimahi as subjects. The objective is to find out the types of students’ errors when completing problem material functions referring to Newman error categories and their causes. The data analysis obtained from written tests and interviews. The data validity test was carried out by data reduction, data presentation, and data retrieval. The results showed that there were 4 types of errors made by students, namely errors of understanding by 16%, transformation errors by 15%, errors of process skills by 32%, and errors in writing answers by 1%. Moreover, the students’ error caused by several matters, such as the students not get used to the form of stories, unable to interpret the problem as a whole, the lack of practice in solving non-routine problems, and in a hurry when working on the questions.

PENGEMBANGAN MEDIA KALKULUS MENGGUNAKAN JAVASCRIPT GEOGEBRA UNTUK MENINGKATKAN KEMAMPUAN PENALARAN TERHADAP CALON GURU PADA PANDEMI COVID 19 Martin Bernard; Chandra Novtiar
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.p159-168

Calculus is one of the basic subjects that must be mastered by every student of the mathematics education study program, if students cannot understand other mathematics-related courses, students will experience difficulties and will hinder their professionals from becoming good teachers. Because, a teacher must be able to convey information that is important for mathematics to be applied to daily life to students, this encourages students to be motivated to develop mathematics in the future related to technology. In current developments, teachers are trying to make mathematics learning strategies by using teaching aids to improve students 'reasoning abilities, so that students can provide based on students' experiences when doing it, but the biggest obstacle by teachers is the cost that is too large and the time is too long. And as a consideration, making ICT-based media is more effective in overcoming these two factors by developing Javascript geometry.

MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF MATEMATIS SISWA KELAS VIII MTS NEGERI SUKASARI CIMAHI PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL MENGGUNAKAN PENDEKATAN OPEN-ENDED Aini Fatwa Rahma; Chandra Novtiar; Asep Ikin Sugandi
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 1, No 2 (2018): JPMI
Publisher : IKIP Siliwangi

Pembelajaran matematika di setiap tingkat pendidikan lebih berorientasi pada peningkatan kecerdasan siswa dibanding perkembangan kreativitas siswa. Bagi siswa terkadang hasil belajar lebih penting dibandingkan proses saat mereka belajar. Sehingga, siswa lebih mementingkan nilai daripada ilmu yang mereka dapatkan. Dalam pembelajaran matematika di MTs Negeri Sukasari Cimahi, mengenai materi SPLDV, siswa kelas VIII G merasa kesulitan dalam: 1) memahami informasi pada soal cerita SPLDV, dan 2) mengingat dan mengaplikasikan metode-metode penyelesain pada soal SPLDV. Pendekatan open-ended digunakan sebagai salah satu strategi pembelajaran agar terjadi peningkatan pada kemampuan berpikir kreatif matematis siswa. Penelitian ini dilakukan dengan 2 siklus dengan setiap siklus terdiri dari 2 pertemuan. Sebelum dimulai tindakan dilakukan tes awal kepada siswa, kemudian dilanjutkan dengan kegiatan siklus I dan siklus II yang menggunakan pendekatan open-ended. Hasil penelitian ini menunjukkan adanya peningkatan kemampuan berpikir kreatif matematis siswa terlihat dari ketuntasan hasil belajar siswa yaitu pada hasil tes awal tidak ada siswa yang nilainya melebihi KKM, pada siklus I terjadi peningkatan sebesar 30,6%, pada siklus II terjadi peningkatan sebesar 47,2%. Hal ini menunjukkan bahwa kemampuan berpikir kreatif matematis siswa kelas VIII MTs Negeri Sukasari Cimahi dapat ditingkatkan melalui pendekatan open-ended.

ANALISIS KEMAMPUAN PENYELESAIAN MASALAH DAN KOMUNIKASI MATEMATIS SOAL INSTRUMEN RELASI DAN FUNGSI PADA SISWA KELAS IX DI KABUPATEN BANDUNG Bakti Pertiwi; Chandra Novtiar
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.p9-22

This research is a qualitative descriptive study that aims to analyze the ability of problem solving and mathematical communication through the results of the answers to the descriptions done by students. The instrument used is 6 items about the description of relation and function material. The subjects of this study were 15 grade IX students from various junior high schools in Bandung district. The form of data collection is a study of the results of the answers to student descriptions which are described in accordance with the selected indicators of problem solving abilities and mathematical communication. Based on the results of the analysis of problem solving abilities with indicators identifying elements that are known, asked, and the adequacy of the elements needed by 78%, formulating mathematical problems 68.3%, applying strategies to solve problems 84.7%, interpreting the results of problem solving 61% . While the results of the analysis of mathematical communication indicators explain mathematical ideas, situations, and mathematical relations orally or in writing with real objects diagrams, pictures, graphs and algebra by 78%, stating daily events in mathematical language 60%. Based on the results of the analysis of mathematical problem solving and communication skills, Grade nine junior high school students in Bandung district were classified as moderate.

ANALISIS KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA KELAS VII PADA MATERI BENTUK ALJABAR DI MASA PANDEMI COVID-19 Kesi Septripiyani; Chandra Novtiar
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 6 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i6.p%p

This research was motivated by the low ability to understand mathematical concepts of algebra students during the Covid-19 pandemic. The purpose of this study was to describe the ability to understand the concepts of seventh grade students at MTs An naiim Bandung in learning mathematics in algebraic forms. The method used is descriptive qualitative research, data collection techniques used in this study are through tests, interviews and documentation. The analytical technique used in this study is a qualitative descriptive analysis technique. Based on the results of the analysis and discussion of research, namely the category based on the ability to understand mathematical concepts very high gets a percentage of 4.17%, the high category gets a presentation of 8.33%, the middle category gets a percentage of 25%, the low category gets a percentage of 30.83%, the very low category gets a percentage. the percentage is 33.3%. So it can be concluded from the results of the students' ability to understand mathematical concepts that students' abilities are still very low in algebraic form material.

ANALISIS KESALAHAN SISWA KELAS IX DALAM MENYELESAIKAN SOAL MATERI TEOREMA PYTHAGORAS Idzni Nur Hafizah; Chandra Novtiar
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 6 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i6.p%p

Article is one of the research results written to analyzeor assess an activity that has a problem. This research is closely related to a problem that occurs in schools with certain materials. The purpose of this study was to analyze the results of the students' mathematical understandingof pythagoras theorem material. Pythagoras material is a subject matter that must be mastered or understood by students with the purpose to add student insightinto the next material. Therefore, this research is very useful in assessing and knowing the extent to which students understand the material. This research was conducted to grade IX students of SMPN 2 Cibeber, the total number of students is 19 people consisting of 8 male students, and 11 female students. The research provided results, that the ability of students are low in terms of understanding the problems given.

MENINGKATKAN KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VIII MTS NEGERI SUKASARI CIMAHI PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL MENGGUNAKAN PENDEKATAN RECIPROCAL TEACHING Yasmin Andhiya; Asep Ikin Sugandi; Chandra Novtiar
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 1, No 2 (2018): JPMI
Publisher : IKIP Siliwangi

Matematika merupakan sebagian ilmu pengetahuan terapan maupun penalaran yang sering sekali digunakan dalam berbagai bidang, terutama bidang teknologi. Matematika juga suatu pelajaran penting dan harus dikuasai setiap siswa dari tingkat sekolah dasar hingga tingkat perguruan tinggi. Dalam tujuan pembelajaran matematika ada satu aspek yang harus ditingkatkan yaitu kemampuan komunikasi matematis. Kemampuan inilah yang harus dikuasai tiap siswa. Namun kenyataannya, tingkat kemampuan siswa masih tergolong rendah. Sistem persamaan linear dua variabel (SPLDV) merupakan salah satu materi yang cukup sulit dipahami siswa kelas VIII di MTs Negeri Sukasari Cimahi. Perlu diadakannya sebuah solusi dalam pembelajaran yaitu menggunakan pendekatan reciprocal teaching. Metode yang digunakan adalah penelitian tindakan kelas dengan dua siklus dengan masing-masing siklus terdapat dua pertemuan. Pada setiap akhir siklus, siswa diberikan tes tertulis berbentuk soal uraian. Hasil dari penelitian ini, menunjukkan bahwa adanya peningkatan kemampuan komunikasi matematis dengan menerapkan pendekatan reciprocal teaching. Terlihat dari hasil nilai rata-rata pada setiap siklusnya, hasil pra siklus dengan nilai 37, pada siklus I menjadi 69 (44,44%), dan pada siklus II menjadi 76 (63,89%).

ANALISIS KESALAHAN SISWA SMK DALAM MENYELESAIKAN SOAL DIMENSI TIGA BERDASARKAN KATEGORI KESALAHAN MENURUT WATSON Ai Rosita; Chandra Novtiar
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 1 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i1.p%p

This study aims to analyze the mistakes of vocational students in the Three Dimension material. This research was conducted in class XII students in one of the vocational schools in Cimahi as many as 26 students who were taken 6 random samples based on the results of the location of the mistakes made by students in different criteria according to Watson's error. The research approach used is qualitative descriptive method. The instrument used is a matter of validated mathematical bloom taxonomy. Tests conducted by students are examined for the type of error based on the Watson category and an analysis of the answer errors. The results showed that based on the percentage of the types of errors students who had solved mathematical problems based on the categories of errors according to Watson were incorrect data errors included in the small error of 13%, Procedure errors were not included in the very low error of 3%. Erroneous conclusions lost are included in the high error that is equal to 54%. Error in casting answers is 13%. While errors other than (above other / AO) or incorrect data writing and did not respond by 17%, included in the low error.

ANALISIS KESALAHAN PEMECAHAN MASALAH MATEMATIS SISWA DALAM MENYELESAIAKAN SOAL OPERASI HITUNG CAMPURAN BILANGAN CACAH DAN PECAHAN Vindi Fujia Syavira; Chandra Novtiar
JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 6 (2021): JPMI
Publisher : IKIP Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/jpmi.v4i6.p%p

This research aims to analyze students' errors in terms of mathematical problem-solving skills when solving the operation of calculating a mixture of numbers and fractions. The subjects who have been studied are students of the 8th grade of PGRI 4 Cimahi Junior High School in the academic year 2019-2020. This research is conducted with descriptive methods that aim to obtain an overview of student errors in solving problems solving the problem of calculating the number of numbers and pacahan, then the data collection technique used is to use the documentation of the instrument of the problem as many as 6 questions of description that have been done by students. Once the data is obtained, the researcher analyzes it with qualitative descriptive analysis. The results obtained from this study, stated that students' errors in working on problem solving problems are relatively high and get an overall average percentage of 70.45%. This shows that students can work on the problem with the right answer, but many skip the steps of problem solving.

Pengembangan Media Visual Basic Application untuk Meningkatkan Kemampuan Penalaran Siswa SMP dengan Pendekatan Open-Ended Euis Eti Rohaeti; Martin Bernard; Chandra Novtiar
SJME (Supremum Journal of Mathematics Education) Vol 3 No 2 (2019): July 2019
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Penelitian ini memiliki tujuan mengetahui pengaruh media pembelajaran Visual Basic Application (VBA) for Microsoft Powerpoint dan Excel pada materi peluang terhadap kemampuan penalaran matematis siswa SMP. Sampel pada penelitian ini adalah 23 siswa kelas VIII salah satu SMP di Kota Cimahi Tahun Pelajaran 2018/2019. Pengambilan data diperoleh dengan metode tes untuk menentukan kemampuan penalaran matematis siswa yang kemudian dianalisis ketercapaian dan kesulitan siswa pada setiap indikator yang menjadi dasar pengembangan media pembelajaran. Media kemudian diujicobakan kembali dalam pembelajaran. Hasil dari penelitian ini adalah adanya pengaruh media pembelajaran Visual Basic Application (VBA) for Microsoft Powerpoint dan Excel dalam meningkatkan kemampuan penalaran siswa pada materi peluang, dan media tersebut dapat membantu guru saat menggunakan pendekatan Open-Ended sehingga pembelajaran di kelas lebih efektif, serta menciptakan pembelajaran peluang menjadi interaktif dan menyenangkan.

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