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<![CDATA[PENGARUH DISPOSISI MATEMATIS TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA SMP ]]>
<![CDATA[Apri Kurniawan]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 3, No 2 (2020): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v3i2.p%p
<![CDATA[This study aims to determine the extent to which mathematical disposition affect the problem solving abilities. The method used is quantitative descriptive with correlation technique. The population in this study were all 8th grade Junior High School students in Cilacap district with a sample of 31 students who were selected purposively at one Junior High School. Data obtained by testing the problem solving tes instrumen as many as 5 questions then analyzed the achievement on each indicator of ability and non tes in the form of a mathematical disposition questionnaire of 25 statements. The research data were processed using SPSS 16.0 software by conducting pearson correlation tes and the results were analyzed descriptively. The results of the study concluded that there was a moderate positive correlation between mathematical disposition of problem solving abilities with a correlation of 0,556 and a coefficient of determination of 0,309 at a significance of 0,05. This shows that the higher the mathematical disposition, the higher the problem solving ability of students with an effect of 30,9%]]>
<![CDATA[ANALISIS EPISTEMOLOGICAL OBSTACLE SISWA SMA PADA MATERI TRIGONOMETRI ]]>
<![CDATA[Maya Isna Insani]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 3, No 5 (2020): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v3i5.p%p
<![CDATA[This research is motivated by the large number of students who experience learning barriers on trigonometry material. The obstacles that often occur in students when solving questions that are not routine such as questions in the form of stories. The purpose of this study is to analyze the epistemological obstacle of high school students on trigonometry material. The method of this research is a descriptive qualitative method with the subject of the study being students of class XI in one of the high schools in West Bandung with 27 students. The instrument used was a test in the form of a description of trigonometric material and interview guidelines. Data analysis techniques used are: Data reduction, data presentation and data verification. The results and discussion of this study is that the epistemological obstacle of high school students on trigonometry material occurs because of the limitations of students when solving non-routine problems. When students are given unusual questions, which are questions in the form of stories, students experience learning obstacles and tend to be unable to solve problems by completing. Students who are given ordinary or easy problems will make students difficult in working on questions in the form of stories. Students should be given problems in the form of problem solving, so students can think critically and will not have difficulties when given questions in the form of stories or problem solving.]]>
<![CDATA[PENERAPAN PENDEKATAN SAINTIFIK UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN MATEMATIS SIWA SMP PADA MATERI SPLDV ]]>
<![CDATA[Wahyu Nurzaman]]>;
<![CDATA[Nelly Fitriani]]>;
<![CDATA[Gida Kadarisma]]>;
<![CDATA[Wahyu Setiawan]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 3 (2022): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v5i3.10189
<![CDATA[ This research is a classroom action research (CAR) which aims to examine the improvement of students’ mathematical understanding concept in the VIII grade SPLDV material at Junior High School 2 Saguling. This research was conducted on class VIII-A students in the 2020-2021 school years. The subjects of this study consisted of 17 students who belonge to group A in class VIII-A. the instruments used were test, interviews, and observation sheets given to teachers and students during classroom action research. The results showed that the aspect of students’ mathematical understanding abilities had increased because the actions given used a scientific approach and the questions on each test were in accordance with the indicators of the mathematical understanding ability. Based on the wprk indicators and processed resluts, it can be concluded that the mathematical understanding ability of grade VIII-A students of junior high school 2 Saguling can be through a scientific approach.]]>
<![CDATA[ANALISIS KESULITAN SISWA SMP KELAS VII DALAM MENYELESAIKAN SOAL OPERASI ALJABAR ]]>
<![CDATA[Eli Herawati]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 2 (2021): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v4i2.p%p
<![CDATA[This article aims to analyze the difficulties of grade VII junior high school students in solving algebraic operation problems. This type of research is descriptive qualitative. The subjects in this study were students of class VII-A at a private junior high school in West Bandung Regency. The researcher used an instrument in the form of 7 items of comprehension ability, where each question represented an indicator of mathematical understanding. The data analysis technique used in this research is the test results of algebraic operations, data reduction and drawing conclusions. Based on the data analysis, it was found that some students had difficulties in solving algebraic operation problems, including students who did not understand what concept was being asked, students still did not understand calculating addition, subtraction and algebraic multiplication operations, students did not understand how to factor, students were less careful in writing operation signs or variables and students are still wrong in defining the variable 'x' they think that 'x' is a sign of the multiplication operation. So it can be concluded that the ability to solve algebraic operation problems in class VII-A is still low and still cannot reach the expected KKM value.]]>
<![CDATA[ANALISIS KESALAHAN SISWA SMP DALAM MENYELESAIKAN SOAL MATERI ARITMATIKA SOSIAL PADA PEMBELAJARAN DARING ]]>
<![CDATA[Lusi Amalia]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 1 (2022): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v5i1.p%p
<![CDATA[During the Covid-19 pandemic, learning is carried out online, this does not become an obstacle for learning mathematics, especially on the subject of social arithmetic which is closely related to daily activities. The purpose of this study is to analyze and explain students' mistakes when working on social arithmetic problems online. The research method uses descriptive qualitative. Data collection techniques by distributing 5 items of description. The subjects in the study were seventh grade students of Dharma Kartini Middle School, Cimahi. The research stages include data reduction, data delivery and data inference. The results of this study show an error in indicator one determining the relationship between selling and buying prices and indicator two determining the relationship between profit and loss in the low category, indicators of the relationship between net, gross and tare and indicators solving problems related to social arithmetic in the medium category and indicators solving problems with respect to discounts in the high category. The underlying factors are the lack of accuracy of students in pronouncing the questions, lack of understanding of concepts and students still not understanding arithmetic operations.]]>
<![CDATA[UPAYA MENINGKATKAN HASIL BELAJAR SISWA SMK PADA MATERI LOGIKA MATEMATIKA DENGAN MENGGUNAKAN PENDEKATAN KONTEKSTUAL ]]>
<![CDATA[Asrita Septiani]]>;
<![CDATA[Martin Bernard]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 5, No 3 (2022): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v5i3.10302
<![CDATA[This study is a action research. This study aims to see the improvement of student learning outcomes in mathematical logic material trough a contextual approach to class XI at SMK TI Garuda Nusantara Cimahi. This research was conducted in the academic year 2021-2022 with 15 students in this study. Data collection techniques were carried out by means of observation, documentation and using test questions. The instrument that will be given to students is 5 test questions carried out in 2 cycles. The first cycle will carry out a pretest which means doing an initial test and a posttest which means a final test for students by being given an understanding of mathematical logic material using a contextual approach. Based on the results of the research that has been carried out, the following results were obtained: 1) learning outcomes in the initial test get a score of 7 students with an average (46.67%), 2) learning outcomes in the final test get an increase of 13 students with an average (86 ,66%), seen from this study most of the student learning outcomes have met the criteria for the KKM score. From the results of this study, it can be concluded that through acontextual approach can have a positive influence on learning outcomes carried out on in mathematical logic.]]>
<![CDATA[ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA SMA PADA MATERI FUNGSI ]]>
<![CDATA[Iffi Martin]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 3, No 6 (2020): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v3i6.p%p
<![CDATA[This study aims to describe students’ problem solving abilities in the function material. This research is a qualitative descriptive study. The subjects of this study were 15 students of class X students of Muhammadiyah 1 Cimahi High School. The method used to collect data is by using written worksheets with mathematical problem solving abilities at the function table. The results showed that the ability to solve mathematical problem solving in class X high school Muhammaiyah was already high, as seen from the presentation stating that students were able to identify known elements, implement strategies and develop mathematical models. Overall students mathematical problem solving abilities, especially in material function are in high qualifications.]]>
<![CDATA[ANALISIS EPISTEMOLOGICAL OBSTACLE PADA MATERI PERBANDINGAN SISWA SMP KELAS VIII ]]>
<![CDATA[Rismayantini Rismayantini]]>;
<![CDATA[Gida Kadarisma]]>;
<![CDATA[Euis Eti Rohaeti]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 1 (2021): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v1i1.p%p
<![CDATA[This study aims to analyze the epistemological obstacle experienced by junior high school students when understanding concepts and solving problems regarding comparison material. The focus of this research is on the epistemological obstacle. The method in this research is descriptive qualitative and tested on students of class VIII - C at SMP Pasundan 3 Cimahi, totaling 34 students, the research instrument is a test instrument, namely 7 items regarding comparison material. Data processing in this study uses Microsoft Excel. The result of this research is the occurrence of an epistemological obstacle in junior high school students, namely when understanding the concept and solving a problems where there are limitations to the students in certain contexts regarding comparison material.]]>
<![CDATA[ANALISIS KESALAHAN SISWA KELAS IX SMP DALAM MENYELESAIKAN SOAL PADA MATERI LINGKARAN ]]>
<![CDATA[Wina Nur Alifah Suherman]]>;
<![CDATA[Nelly Fitriani]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 1 (2021): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v4i1.p%p
<![CDATA[This research aims to analyze in order to find out the mistakes of Asyifa 44 Junior High School students in solving problems on circle material. Has a qualitative descriptive method. The data taken in the study were the results of the answers of 20 junior high school students in class IX of SMP. The instrument used includes a test instrument in the form of circular material questions as many as 6 items. Processing in this study using triangulation. Some of the mistakes made by students when solving circle material problems include: (1) mistakes in distinguishing several elements of the circle, (2) completing half of the answers, (3) not using long units, (4) unable to prove the relationship between the perimeter angle with the center angle, (5) have not been able to find a number pattern, (6) are wrong in comparing images, (7) cannot conclude a solution. Problems with the largest percentage were number 1 at 90%, and questions with the lowest percentage were number 3 at 20%.]]>
<![CDATA[ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMA PADA MATERI BARISAN DAN DERET ]]>
<![CDATA[Neng Saadah Mardiyah]]>;
<![CDATA[Gida Kadarisma]]>
<![CDATA[ JPMI (Jurnal Pembelajaran Matematika Inovatif) Vol 4, No 6 (2021): JPMI ]]>
Publisher : <![CDATA[IKIP Siliwangi ]]>
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DOI: 10.22460/jpmi.v4i6.p%p
<![CDATA[The purpose of this study is to understand the communication skills of high school students in answering the problem of sequences and series. The subjects of this study were students of class XII from high school in West Bandung Regency. The method that the researcher used was descriptive qualitative method. To obtain the data of this study using the interview method and 5 essay questions on mathematical communication skills. Based on the results of this study, it can be said that students' communication skills are still not good or low, especially for the ability to state a situation and daily problems in the form of mathematical patterns and solve them. State a situation or everyday problem in the form of a mathematical model and solve it, State a diagram in the form of a story problem and solve it. The thing that underlies the students do not understand or have correct and good communication skills because students think that writing something they are looking for and knowing is unnecessary. Students still do not understand the concept of sequences and series. Students are still careless in answering questions because they want to finish quickly.]]>
