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Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang

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Published by Universitas IVET

ISSN : 2549823 EISSN : 2549507 DOI : https://doi.org/10.31331/

Core Subject : Education,

Mathematics Other

Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang is designed to lecturers, researchers, mathematics teachers, and university students who want to publish their research reports about mathematics education. This journal publishes original articles of action research, experimental research, research and development, qualitative research, didactic development research, and design research. We may process any other kind of research. We accepted any manuscript derived from research of mathematics education. We recommend articles from the following topics: Mathematics instructional; Mathematics learning evaluation; Mathematics curriculum development; Experiment or development of mathematics learning strategy; Experiment or development of mathematics teaching aid/media; Realistic Mathematics Education; Ethnomathematics.

Arjuna Subject : Matematika - Matematika (Lain-Lain)

Articles 268 Documents

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Analisis Kemampuan Literasi Statistis Siswa Madrasah Tsanawiyah dalam Materi Statistika Iyam Maryati; Nanang Priatna
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 2 No 2 (2018): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

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Rendahnya Kemampuan literasi statistis pada siswa menengah pertama merupakan fokus masalah dari penelitian ini. Tujuan dari penelitian ini untuk menganalisis kemampuan literasi statistis siswa Madrasah Tsanawiyah Negeri 1 Kabupaten Garut Tahun Ajaran 2016/2017 kelas VIII dalam materi statistika khususnya yang berkaitan dengan bahasan penyebaran data dan pemusatan data berdasarkan indikator-indikator kemampuan literasi statistis ditinjau dari membaca data statistika, memahami konsep statistika, mengkomunikasikan proses pengolahan data statistika, dan mempresentasikan hasil pengolahan data statistika. Metode penelitian yang digunakan adalah metode deskriptif kualitatif dengan bentuk studi kasus. Subyek dalam penelitian ini berjumlah 35 orang siswa. Hasil analisis data menunjukkan kemampuan siswa dalam membaca data statistika yang diberikan dalam bentuk tabel, diagram dan grafik sebesar 35%, kemampuan siswa dalam memahami konsep sebesar 32%, kemampuan siswa dalam mengkomunikasikan proses pengolahan data sebesar 30%, serta kemmapuan siswa dalam mempresentasikan hasil pengolahan data sebesar 28%. Adapun kesimpulan dari analisis tersebut dapat dikategorikan rendah karena masih berada di bawah kriteria ketuntasan minimum. Kata kunci: literasi statistis ABSTRACT The low statistical literacy ability of junior high school students is the focus of the problem from this study. The purpose of this study is to analyze the ability of students statistical literacy on Madrasah Tsanawiyah Negeri 1 Garut 2016/2017 grade VIII in statistics topics especially related to the discussion of data dispersion and central tendency based on indicators of statistical literacy ability in terms of reading statistical data, understand the concept of statistics, communicating the process of statistical data processing, and presenting the results of data processing statistics. The research method used is a qualitative descriptive method with a case study. Subjects in this study amounted to 35 students. The data analysis showed that students ability in reading statistical data given in the form of tables, diagrams, and graphs is on 35%, students' ability in understanding the concept is on 32%, students' ability in communicating data processing process is on 30%, and students' ability in presenting then processing result data is on 28%. The conclusions of the analysis can be categorized as low because it is still below the criteria of mastery learning Keywords: statistical literacy

The Ability of Proof Using Mathematics Induction Through Cooperative Learning Type Team Assisted Individualization Wulan Izzatul Himmah
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 6 No 2 (2022): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

The ability to prove is one of the skills that need to be mastered by pre-service mathematics teachers. One method of proof in mathematics is using mathematical induction. However, from previous research, it is known that they still make common mistakes when proving using mathematical induction. This study aims to determine the difference in increasing the ability to prove using mathematical induction between pre-service teacher Mathematics Education program in IAIN Salatiga who study with cooperative learning type Team Assisted Individualization (TAI) and who receive conventional learning and to determine the size effect of the application of cooperative learning type TAI towards pre-service teachers’ ability to prove using mathematical induction. This research is a quasi-experimental study with a nonequivalent control group design. The population in this study were 107 pre-service mathematics teachers of the Mathematics Education Program of IAIN Salatiga who were taking the Set Logic course. Sampling used the purposive sampling technique and selected class A as the experimental class and class C as the control class. The instrument in this study used essay test questions. Data were analyzed using an independent sample t-test to determine the difference in the average N-Gain of the two sample groups. The results showed the difference in increasing the ability to prove using mathematical induction between a pre-service teacher who received learning through cooperative learning type TAI and a pre-service teacher who received conventional learning. In addition, the size effect of the application of cooperative learning type TAI toward the ability to prove using mathematical induction is categorized as medium. Keywords: Team Assisted Individualization, Mathematical Proof, Mathematical Induction.

Penerapan “Rute Emas” Sebagai Salah Satu Desain Math Trail Untuk Meningkatkan Kemampuan Pemecahan Masalah Matematika Tri Mulyono Edi; Akhmad Nayazik
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 3 No 2 (2019): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Penelitian ini dilatarbelakangi banyak siswa yang kurang memiliki kemampuan dan kemauan belajar, sehingga belajar merupakan sesuatu yang sulit dan membosankan terutama pelajaran matematika, serta menganggap matematika adalah pelajaran yang kurang berguna dalam kehidupan sehari-hari. Salah satu penyebab adalah rasa kebosanan, kesulitan dan ketakutan siswa terhadap pelajaran matematika serta anggapan ketidakgunaan pelajaran matematika dalam kehidupan sehari-hari khususnya materi geometri dan pengukuran. Pada akhirnya melemahkan daya kreatifitas dan kemandirian siswa dalam belajar. Tujuan penelitian ini adalah meningkatkan kemampuan pemecahan masalah matematika materi keliling dan luas bangun segiempat pada siswa kelas VII A di SMP Negeri 33 Semarang dengan penerapan “Rute Emas” sebagai salah satu desain Math Trail suatu pembelajaran di luar kelas. Pada peta “Math Trail” atau setiap titik petunjuk penjelajahan siswa dapat merumuskan, mendiskusikan, dan memecahkan masalah matematika yang menarik. Kegiatan Math Trail dapat dilakukan sendirian atau berkelompok untuk saling bekerja sama untuk memecahkan permasalahan. Penelitian ini merupakan penelitian tindakan kelas meliputi 4 langkah: planning, actuating, observation, dan reflecting. Hasil penelitian menunjukkan bahwa Hasil tes rata-rata kelas pada siklus pertama dan kedua mengalami peningkatan dari 73,66 menjadi 75,05 serta prosentase banyaknya siswa yang mendapat nilai minimal 67 adalah 23 siswa (74,19)% menjadi 27 siswa (87,10%). Hasil tersebut menunjukkan terjadi peningkatan kemampuan pemecahan masalah materi menggunakan rumus keliling dan luas segiempat dalam menyelesaikan masalah melalui penerapan “Rute EMAS” sebagai salah satu desain Math Trail suatu pembelajaran matematika. Kata kunci: kemampuan pemecahan masalah, desain Math Trail. ABSTRACT This research is motivated by many students who lack the ability and willingness to learn, so learning is something difficult and boring, especially mathematics, and considers mathematics to be a lesson that is less useful in everyday life. One of the causes is a sense of boredom, difficulties and fears of students towards mathematics and the presumption of the uselessness of mathematics in everyday life, especially geometry and measurement material. In the end it weakens the creativity and independence of students in learning. The purpose of this study was to improve the mathematical problem solving abilities of the surrounding and wide-area quadrilateral in students of class VII A in 33 State Junior High School Semarang by applying "Golden Route" as one of the Math Trail designs for learning outside the classroom. On the "Math Trail" map or each exploration point of instruction students can form, discuss, and solve interesting mathematical problems. Math Trail activities can be done alone or in groups to work together to solve problems. This research is a classroom action research covering 4 steps: planning, actuating, observation, and reflecting. The results showed that the results of the class average tests in the first and second cycles had increased from 73.66 to 75.05 and the percentage of students who received a minimum score of 67 was 23 students (74.19)% to 27 students (87.10 %). These results indicate an increase in the ability of material problem solving using the circumference formula and square area in solving problems through the application of "EMAS Routes" as one of the Math Trail designs in a mathematics learning. Keywords: problem solving, math trail design.

Analysis Of Students' Mistakes In Completing Exponent Materials Based On Castolan Theory Mariani Mariani; Nahor Murani Hutapea; Maimunah Maimunah
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 7 No 1 (2023): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

This research is motivated by the importance of analyzing student errors in solving exponential problems, because there are still many students who make mistakes in solving exponential material problems. The purpose of this study was to find out the errors made by students in solving exponential problems using the Kastolan theory. The types of errors in the Kastolan theory are conceptual errors, procedural errors and technical errors. The type of research used is descriptive qualitative research. The subjects in this study were 31 students of class X8 SMAN 1 Kampar Timur. This study uses data collection techniques in the form of description tests and interviews. The description questions used in this study amounted to 5 questions related to the properties, equations and inequalities of the modified exponents. Data analysis is used in this study to reduce, present, and draw conclusions. Based on the results of the study, the percentage of students who made mistakes in working on exponential material problems were as follows: 1) Students made conceptual errors, with a percentage of 20.31%, 2) Students made procedural errors with a percentage of 35.55%, 3) Students made mistakes technique with a percentage of 44.12%. The mistakes that many students make on exponent material are procedural errors and technical errors.

Respon Mahasiswa Calon Guru Matematika saat Situasi Contingency di Dalam Pembelajaran Matematika Meiliasari Meiliasari
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 4 No 2 (2020): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Kompleksitas situasi belajar mengajar di kelas sering kali menyulitkan bagi guru pemula terlebih lagi mahasiswa calon guru. Mata kuliah Praktik Keterampilan Mengajar (PKM) merupakan kesempatan pertama bagi mahasiswa calon guru untuk mengajar di kelas. Minimnya pengalaman mengajar di kelas, terkadang menyulitkan mereka dalam mengambil keputusan sesaat yang dibutuhkan di dalam kelas. Situasi di kelas yang tidak direncanakan dan tidak diduga sebelumnya dikenal dengan istilah contingency. Artikel ini fokus memaparkan hasil penyelidikan tentang bagaimana respon mahasiswa calon guru matematika dalam menghadapi contingency di kelas. Penelitian ini menggunakan metodologi case study dengan melibatkan 4 orang mahasiswa calon guru yang sedang mengambil mata kuliah PKM. Data diperoleh dengan rekaman video saat mahasiswa mengajar di kelas dan wawancara individu. Hasil penelitian menunjukkan dua pemicu contingency yaitu jawaban siswa yang tidak terduga dan ketidaksesuaian penggunaan waktu. Selain itu mahasiswa menggunakan pendekatan tradisional saat menghadapi contingency di kelas. Hal ini mengindikasikan pedagogical content knowledge(PCK) mahasiswa berpegaruh terhadap pendekatan pembelajaran yang digunakan. Kata kunci: matematika, mahasiswa calon guru, contingency, pedagogical content knowledge. ABSTRACT The complexcity of classroom teaching is found to be one of the difficulties for pre-service teachers. Most pre-service teachers encounter authentic classroom teaching when they do teaching practice in a school. With little or no teaching experience, it is difficult for pre-service teachers to act in the moment during the teaching. Unplanned situations in a classroom is called contingency. This paper focuses on investigating how pre-service teachers act in the moment when responding to contingency. Case study methodology is used in this research. Four pre-service teachers were involved, data are collected through video observation, interview and fieldnotes. The findings showed that the contingency is triggered by unplanned student’s answers and the misused of time. Moreover, this study also found that pre-service teachers used traditional teaching when responding to contingency, indicating that their PCK contributes to their action. Keywords: mathematics, pre-service teachers, contingency, pedagogical content knowledge.

Improve Creative Thinking Ability of Vector Material Through Problem Posing Type Pre Solution Posing at SMAN 3 Semarang Tri Martini Nuhariyani
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 5 No 1 (2021): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

In learning process, students often appear reluctant to read mathematics books. So that the students do not understand the meaning and concept of the material they have heard and recorded. This research offers a pre-solution posing type of problem posing model. Students make questions according to the situation given by the teacher and then it solve by themselves or finish them as discussion materials. The research objective is to examine, to describe the increase in creative thinking skills which have the effect of increasing learning achievement through the pre-solution posing type of problem posing model. The research was conducted at X-MIPA 2 SMAN 3 Semarang on vector material. Research variables are creative thinking skills and learning achievement. Data on creative thinking abilities were taken using observation sheets, data on learning achievement were taken by tests. The obtained data were scored, processed and presented descriptively. The results showed, the number of students completed, respectively, on the creative thinking variable was 57% and 86%, while the learning achievement was 60% and 91%. The increase that occurs shows the application of improved learning actions on vector material with the pre-solution posing type of problem posing learning model. Keywords: Creative Thinking, Pre Solution Posing, Learning Achievement, Problem Posing

Matematika Nusantara: Pengajaran Matematika Berbasis Budaya Indonesia Hery Sutarto
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 2 No 1 (2018): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Berbagai model pengajaran masuk ke Indonesia dengan berbagai karakteristik yang belum tentu cocok dengan kondisi Indonesia. Ketidakcocokan tersebut dapat ditinjau dari berbagai faktor, mulai dari latar belakang siswa, budaya, kondisi geografis, guru, kurikulum dan sebagainya ketika dibandingkan dengan negara asalnya, yakni Belanda dengan Realistic Mathematics Education (RME) dan Amerika untuk Contextual Teaching and Laerning (CTL). Indonesia dengan segala keberagamannya termasuk kekayaan budayanya merupkan potensi yang tak ternilai untuk dieksplorasi menjadi sumber pengajaran matematika dengan penciri yang khas. Artikel ini memberikan gambaran awal dalam menciptakan suatu model pembelajaran matematika berbasis budaya yang ada di nusantara dengan nama Matematika Nusantara. Uji coba model ini telah dilaksanakan pada pelatihan untuk guru-guru matematika di kabupaten Serang-Banten. Respon yang positif dan optimis dari peserta menjadikan model Matematika Nusantara mantap dapat diimplementasikan di Indonesia dengan fleksibilitas yang tinggi sesuai dengan karakteristik budaya di masing-masing daerah. Kata kunci: matematika nusantara; matematika berbasis budaya ABSTRACT Various learning models came to Indonesia with various characteristics that may not necessarily match with the conditions of Indonesia. That incompatibility can be observed from many factors, such as student background, culture, geographical conditions, teachers, curriculum, and so on, when they are compared to their origin country, Netherlands for the Realistic Mathematics Education (RME) and America for the Contextual Teaching and Learning (CTL). Indonesia with all its cultural diversity is the most valuable potential to be explored as an unique mathematical learning material. This article provides the first description in creating an Indonesian cultural-based mathematics learning model named Matematika Nusantara. This model has been tested and implemented in mathematics teacher training in Kabupaten Serang, Banten. The positive and optimistic response from the participants shows that Matematika Nusantara model can be steady implemented in Indonesia with high flexibility for any curtural characteristics in each region. Keywords: matematika nusantara, curtural-based mathematics

Giving an Individual Tutoring for 8th Grade Student in the Errors of Solving the Problem of Essay Test for Comparative Material in SMPN 232 Jakarta Yusufira Aldona; Pinta Deniyanti Sampoerno; Lukman El Hakim; Dwi Antari Wijayanti
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 6 No 1 (2022): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

This study aims to describe students’ errors in solving the problem of essay test for comparative material based on the type of errors, describe the causes of students making errors, and conduct individual tutoring to minimize and overcome students’ errors. This is action research that conducted in three cycles with Research Subject (RS) for four students of class VIII F SMPN 232 Jakarta. Each RS represents one type of error based on the results of error analysis on initial test that given during pre-cycle, successive factual error, conceptual error, operation error, and principle of error. The instruments used in this study were initial test, end-cycle tests, documentation tools, interview guidelines, tutor guidelines, observation sheets, and field notes. The data was analyzed qualitatively. The results showed that in cycle I, RS1 still made a factual error, RS2 also made a conceptual error, while RS3 and RS4 had not made any errors. In cycle II and III, RS1, RS2, RS3, and RS4 had not made any errors. The cause of the factual error is lack of thoroughness. The cause of the conceptual error is not understanding the concept of the comparison type. The cause of the operation error is lack of thoroughness and haste. The cause of the principle of error is lack of thoroughness. It can be concluded that individual tutoring can minimize and overcome students’ errors in solving the problem of essay test for comparative material. Keywords: students’ error, essay test, individual tutoring, comparative material.

Pengembangan Perangkat Pembelajaran Melalui Model Problem Based Learning Berorientasi Kemampuan Pemecahan Masalah Matematis pada Materi Fungsi Kelas X SMA Ferry Ferdianto; Frisca Shella Fadiyah; Mohamad Dadan Sunawan
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 3 No 2 (2019): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Penelitian ini bertujuan untuk mengembangkan perangkat pembelajaran berupa RPP dan LKS berbasis Problem Based Learning pada materi fungsi untuk siswa SMA yang berorientasi pada kemampuan pemecahan masalah. Kualitas produk yang dikembangkan dinilai berdasarkan aspek kevalidan, keefektifan, dan respons siswa terhadap LKS. Prosedur pengembangan perangkat pembelajaran mengacu pada model pengembangan 4-D, yaitu Define (Pendefinisian), Design (Perancangan), Develop (Pengembangan), dan Disseminate (Penyebaran). Penulis memiliki keterbatasan waktu dan tenaga, sehingga penulisan dilakukan hingga tahap develop. Subjek penelitian ini adalah siswa kelas X MIPA 1 sebanyak 36 siswa di SMA Negeri 1 Karangwareng. Instrumen yang digunakan untuk mengukur kualitas perangkat pembelajaran yang dikembangkan adalah lembar penilaian RPP dan LKS untuk mengukur kevalidan, tes kemampuan pemecahan masalah untuk mengukur keefektifan, dan angket respon siswa terhadap LKS. Kualitas kevalidan perangkat pembelajaran memenuhi kriteria valid berdasarkan skor rata-rata RPP dari lima validator yaitu 91% dengan kriteria sangat baik dan skor rata-rata LKS dari lima validator yaitu 92% dengan kriteria sangat baik. Kualitas keefektifan perangkat pembelajaran memenuhi kriteria efektif berdasarkan hasil pretest dan post-test dengan peningkatan persentase ketuntasan dari 2,8% menjadi 72%. Respons siswa sebesar 76% menunjukkan respons yang positif terhadap perangkat pembelajaran berupa LKS. Kata kunci: model Problem Based Learning, kemampuan pemecahan masalah matematis. ABSTRACT This study aims to develop learning tools in the form of RPP and LKS based on Problem Based Learning in the function material for high school students which is oriented to problem solving abilities. The quality of the product being developed is assessed based on the validity, effectiveness, and response of students to the LKS. The learning tool development procedure refers to the 4-D development model, namely Define, Design, Develop, and Disseminate (Distribution). Because of the limitations of the author, the writing is done up to the develop stage. The subjects of this study were 36 students of class X MIPA 1 as many as 36 students in SMAN 1 Karangwareng. The instruments used to measure the quality of learning tools developed are lesson plan assessment sheets and student worksheets to measure validity, test problem solving abilities to measure effectiveness, and questionnaires to students' responses to worksheets. Validity quality of learning devices meets valid criteria based on average RPP scores from five validators, namely 91% with very good criteria and an average score of LKS from five validators, namely 92% with very good criteria. The quality of the effectiveness of learning devices meets the effective criteria based on the results of pretest and post-test with an increase in completeness percentage from 2.8% to 72%. Student responses of 76% showed a positive response to learning equipment in the form of LKS. Keywords: Problem Based Learning, mathematical problem solving ability.

Analisis Kesalahan Siswa dalam Menyelesaikan Soal Persamaan dan Pertidaksamaan Nilai Mutlak Berdasarkan Langkah Penyelesaian Polya Mila Nuryah; Ferry Ferdianto; Supriyadi Supriyadi
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 4 No 1 (2020): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Urogram Studi Pendidikan Matematika, Universitas IVET

Penelitian ini adalah penelitian deskriptif kualitatif yang bertujuan untuk menganalisis jenis-jenis kesalahan dan persentase kesalahan yang dilakukan siswa kelas X MIPA 2 SMA Negeri 1 Gegesik dalam menyelesaikan soal persamaan dan pertidaksamaan nilai mutlak berdasarkan langkah penyelesaian Polya. Metode yang digunakan adalah metode penelitian yang digunakan adalah metode deskriptif kualitatif dengan menggunakan instrumen pengumpulan data berupa soal tes essay dan lembar wawancara.. instrumen yang digunakan terlebih dahulu diuji validitasnya. Subjek penelitian ini adalah 36 siswa kelas X MIPA 2 SMA Negeri 1 Gegesik. Penyelesaian soal persamaan dan pertidaksamaan nilai mutlak berdasarkan langkah penyelesaian Polya terdiri dari empat tahap, yaitu memahami soal, menyusun rencana, melaksanakan rencana, dan memeriksa kembali solusi yang diperoleh. Fokus penelitian ini adalah meneliti jenis kesalahan siswa, jenis kesalahan yang dimaksud dalam penelitian ini adalah jenis kesalahan berdasarkan langkah penyelesaian Polya, yaitu kesalahan memahami soal, kesalahan menyusun rencana, kesalahan melaksanakan rencana, dan kesalahan memeriksa kembali solusi yang diperoleh. Hasil penelitian yang dilakukan menunjukkan bahwa terdapat empat jenis kesalahan yang dilakukan siswa kelas X MIPA 2 SMA Negeri 1 Gegesik dalam menyelesaikan soal persamaan dan pertidaksamaan nilai mutlak berdasarkan langkah penyelesaian Polya, yaitu kesalahan memahami soal sebesar 38%; kesalahan menyusun rencana sebesar 14%; kesalahan melaksanakan rencana sebesar 24%; dan kesalahan memeriksa kembali solusi yang diperoleh sebesar 24%. Kata kunci: analisis kesalahan, persamaan dan pertidaksamaan nilai mutlak, Polya ABSTRACT This research is a qualitative descriptive study that aims to analyze the types of errors and the percentage of errors made by students of grade X MIPA 2 in SMA Negeri 1 Gegesik in solving problems of equality and inequality of absolute values ??based on Polya's completion steps. The method used is the essay test method and the interview method. The subjects of this study were 36 students of class X MIPA 2 of SMA Negeri 1 Gegesik. The solution of equality questions and absolute value disputes based on Polya's completion steps consists of four stages, namely understanding the questions, preparing plans, implementing plans, and re-examining the solutions obtained. The type of error referred to in this study is the type of error based on Polya's completion steps, which is an error in understanding the problem, an error in preparing the plan, an error in implementing the plan, and an error in re-checking the solution obtained. The results of the study showed that there were four types of errors made by students of Class X MIPA 2 of SMA Negeri 1 Gegesik in solving problems of equations and inequality of absolute values ??based on Polya's completion steps, namely errors understanding problems by 38%; mistakes in making a plan by 14%; mistakes in implementing the plan by 24%; and errors re-checking the solution obtained by 24%. Keywords: error of analysis, equality and absolute value inequality, Polya.

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