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All Journal Indonesian Journal of Mathematics and Natural Sciences Jurnal Penelitian Pendidikan Kreano, Jurnal Matematika Kreatif-Inovatif Pedagogi : Jurnal Penelitian Pendidikan Journal of Mathematics and Mathematics Education Scientific Journal of Informatics Educational Management Journal of Mathematics and Mathematics Education (JMME) Jurnal Cendekia : Jurnal Pendidikan Matematika Jurnal Pendidikan Matematika (Jupitek) Unnes Journal of Mathematics Education Research Gema Wiralodra JPMI (Jurnal Pembelajaran Matematika Inovatif) Unnes Journal of Mathematics Education Unnes Journal of Mathematics Prosiding Seminar Nasional Pascasarjana Proceeding of International Conference on Science, Education, and Technology Polyhedron International Journal in Mathematics Education
Iqbal Kharisudin
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Computer Science & IT Decision Sciences, Operations Research & Management Education Languange, Linguistic, Communication & Media Mathematics Other

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Sifat Baik Solusi Kuadrat Terkecil Regresi Fuzzy Dengan Variabel Dependen Fuzzy Tak Simetris Kharisudin, Iqbal
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 1, No 2 (2010): Kreano, Jurnal Matematika Kreatif-Inovatif
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.v1i2.1492

Abstract

Penelitian tentang hubungan di antara fenomena-fenomena real merupakan dasardari tujuan sains dan memainkan peranan penting dalam pengambilan keputusan di dalamkehidupan sehari-hari. Analisis regresi statistik merupakan salah satu alat yang powerfuluntuk menjelaskan hubungan tersebut. Dalam makalah ini dibahas model analisis regresifuzzy dengan variabel dependen fuzzy tak simetris dan variabel independen tegas. Modeltersebut merupakan generalisasi model regresi fuzzy simetris, yaitu model regresi denganvariabel dependen fuzzy simetris. Solusi model tersebut juga merupakan generalisasi darimodel regresi linear biasa. Ide dasar analisis regresi fuzzy tak simetris adalah memodelkanpusat dari variabel dependen fuzzy tipe dengan mengadopsi model regresi klasik,selanjutnya secara simultan memodelkan tepi kiri dan tepi kanan variabel dependen fuzzymelalui model regresi linear sederhana. Pada makalah ini secara spesifik dikaji sifat-sifat baiksolusi kuadrat terkecil model regresi fuzzy dengan variabel dependen fuzzy tak simetris.Kata kunci: data fuzzy , model pusat, model tepi, solusi kuadrat terkecil.
SOLUSI KUADRAT TERKECIL MODEL REGRESI FUZZY DENGAN VARIABEL DEPENDEN FUZZY SIMETRIS Kharisudin, Iqbal
Journal of Mathematics and Mathematics Education Vol 1, No 1 (2011): Journal of Mathematics and Mathematics Education
Publisher : Journal of Mathematics and Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.189 KB)

Abstract

ABSTRACT: It is known that the regression model used to analyze the crisp data. In the condition that there is  uncertainty  (imprecision,  vagueness)  on  values  of  observed  variables,  then  the  fuzzy  regression model is required. In this paper discussed a fuzzy regression model with symmetrical fuzzy dependent variable and crisp independent variables using the least squares approach. The method used to find the  linear  model  is  to  minimize  the  distance  function  between  observed  fuzzy  variables  with  the estimation dependent variable or the corresponding theoretical value. It is shown that the solution of this  model  is  a  generalization  of  the  classical  regression  model. Further  discussion  is  about  the properties of solution of the model.Keyword: center model, spread model, fuzzy distance, iterative solution.
IMPROVING THE AUTODIDACT LEARNING OF STUDENT ON KALKULUS THROUGH COOPERATIVE LEARNING “STUDENT TEAMS ACHIEVEMENT DIVISION” BY PORTFOLIO PROGRAMMED Susilo, Bambang Eko; Kharisudin, Iqbal
Jurnal Penelitian Pendidikan Vol 27, No 1 (2010)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v27i1.196

Abstract

Penelitian ini dilakukan dengan latar belakang masih rendah otodidak belajar siswa dalam ceramah. Penelitian ini dilakukan pada perkuliahan Kalkulus II diambil oleh mahasiswa Jurusan Matematika FMIPA UNNES. Penelitian ini dilakukan dalam dua siklus, setiap siklus berisi tentang perencanaan, tindakan, observasi, dan evaluasi-refleksi. Sebelum itu, ada pembagian ke dalam klasifikasi diskusi terdiri dari empat atau lima orang setiap kelompok. Hasil penelitian telah dilakukan dua siklus penelitian. Siklus I mencapai hanya 12 siswa atau 27,91% dari seluruh siswa yang belajar secara otodidak mendapatkan skor> 60 berarti masih di bawah indikator keberhasilan penelitian ini, yaitu 60%. Jadi perlu dilanjutkan ke siklus berikutnya. Dari portofolio yang telah dikumpulkan, dapat dilihat bahwa kreativitas siswa dalam membuat kuesioner yang masih rendah. Umumnya mereka tidak mendapatkan referensi kecuali dari kelas mereka. Siklus II mencapai 27 siswa atau 62,79% dari seluruh siswa yang mendapatkan skor otodidak belajar> 60 sehingga indikator keberhasilan telah tercapai. Tapi ada masih ada gelisah tentang perbedaan skor cara belajar secara otodidak siklus I dan II, yaitu hanya 4,53, sehingga untuk siklus berikutnya peningkatan skor harus memiliki perhatian. Dari studi di atas dapat disimpulkan bahwa pembelajaran kooperatif " student teams achievement division " (STAD) oleh portofolio diprogram sebagai pengembangan perencanaan Aku Kalkulus dapat meningkatkan otodidak belajar siswa. Penelitian ini perlu ditindaklanjuti karena masalah belajar tidak bisa selesai oleh satu model pembelajaran. Penelitian perlu mengembangkan setiap model pembelajaran dan menerapkannya di kelas untuk siswa tidak bosan. Itu diperlukan penelitian selanjutnya yang melihat dampak dari model pembelajaran dari sisi lain, misalnya dalam kreativitas dalam membuat kuesioner di dalam kelas dalam dan luar ruangan belajar.Kata Kunci: student teams achievement division, autodidact learning, portfolio programmed
Sifat Baik Solusi Kuadrat Terkecil Regresi Fuzzy Dengan Variabel Dependen Fuzzy Tak Simetris Kharisudin, Iqbal
Kreano, Jurnal Matematika Kreatif-Inovatif Vol 1, No 2 (2010): Kreano, Jurnal Matematika Kreatif-Inovatif
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.v1i2.1492

Abstract

Penelitian tentang hubungan di antara fenomena-fenomena real merupakan dasardari tujuan sains dan memainkan peranan penting dalam pengambilan keputusan di dalamkehidupan sehari-hari. Analisis regresi statistik merupakan salah satu alat yang powerfuluntuk menjelaskan hubungan tersebut. Dalam makalah ini dibahas model analisis regresifuzzy dengan variabel dependen fuzzy tak simetris dan variabel independen tegas. Modeltersebut merupakan generalisasi model regresi fuzzy simetris, yaitu model regresi denganvariabel dependen fuzzy simetris. Solusi model tersebut juga merupakan generalisasi darimodel regresi linear biasa. Ide dasar analisis regresi fuzzy tak simetris adalah memodelkanpusat dari variabel dependen fuzzy tipe dengan mengadopsi model regresi klasik,selanjutnya secara simultan memodelkan tepi kiri dan tepi kanan variabel dependen fuzzymelalui model regresi linear sederhana. Pada makalah ini secara spesifik dikaji sifat-sifat baiksolusi kuadrat terkecil model regresi fuzzy dengan variabel dependen fuzzy tak simetris.Kata kunci: data fuzzy , model pusat, model tepi, solusi kuadrat terkecil.
IMPROVING THE AUTODIDACT LEARNING OF STUDENT ON KALKULUS THROUGH COOPERATIVE LEARNING “STUDENT TEAMS ACHIEVEMENT DIVISION” BY PORTFOLIO PROGRAMMED Susilo, Bambang Eko; Kharisudin, Iqbal
Jurnal Penelitian Pendidikan Vol 27, No 1 (2010)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpp.v27i1.196

Abstract

Penelitian ini dilakukan dengan latar belakang masih rendah otodidak belajar siswa dalam ceramah. Penelitian ini dilakukan pada perkuliahan Kalkulus II diambil oleh mahasiswa Jurusan Matematika FMIPA UNNES. Penelitian ini dilakukan dalam dua siklus, setiap siklus berisi tentang perencanaan, tindakan, observasi, dan evaluasi-refleksi. Sebelum itu, ada pembagian ke dalam klasifikasi diskusi terdiri dari empat atau lima orang setiap kelompok. Hasil penelitian telah dilakukan dua siklus penelitian. Siklus I mencapai hanya 12 siswa atau 27,91% dari seluruh siswa yang belajar secara otodidak mendapatkan skor> 60 berarti masih di bawah indikator keberhasilan penelitian ini, yaitu 60%. Jadi perlu dilanjutkan ke siklus berikutnya. Dari portofolio yang telah dikumpulkan, dapat dilihat bahwa kreativitas siswa dalam membuat kuesioner yang masih rendah. Umumnya mereka tidak mendapatkan referensi kecuali dari kelas mereka. Siklus II mencapai 27 siswa atau 62,79% dari seluruh siswa yang mendapatkan skor otodidak belajar> 60 sehingga indikator keberhasilan telah tercapai. Tapi ada masih ada gelisah tentang perbedaan skor cara belajar secara otodidak siklus I dan II, yaitu hanya 4,53, sehingga untuk siklus berikutnya peningkatan skor harus memiliki perhatian. Dari studi di atas dapat disimpulkan bahwa pembelajaran kooperatif " student teams achievement division " (STAD) oleh portofolio diprogram sebagai pengembangan perencanaan Aku Kalkulus dapat meningkatkan otodidak belajar siswa. Penelitian ini perlu ditindaklanjuti karena masalah belajar tidak bisa selesai oleh satu model pembelajaran. Penelitian perlu mengembangkan setiap model pembelajaran dan menerapkannya di kelas untuk siswa tidak bosan. Itu diperlukan penelitian selanjutnya yang melihat dampak dari model pembelajaran dari sisi lain, misalnya dalam kreativitas dalam membuat kuesioner di dalam kelas dalam dan luar ruangan belajar.Kata Kunci: student teams achievement division, autodidact learning, portfolio programmed
Mathematics Communication Based on Students’ Self – Efficacy in Problem Based Learning Assisted By Mobile Learning Ashim, Muhammad; Asikin, Mohammad; Kharisudin, Iqbal
Unnes Journal of Mathematics Education Research Vol 9 No 2 (2020): December 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.03 KB)

Abstract

This research aims to describe mathematics communication skill based on self-efficacy of students in problem based learning assisted by mobile learning. This research was a concurrent embedded. The population was X grade students of MAN 1 Kota Pekalongan. The technique of sampling was purposive sampling. It was selected X MIA 2 as experimental group. The subjects were grouped based on self-efficacy with high, moderate, and low categories to be interviewed about their mathematics communication skill. The instruments were test and interview. The findings showed that PBL assisted by mobile leanring was qualified. The result of mathematics communication description based on self-efficacy was varied, it was shown from 8 students with high self-efficacy, there were 5 students categorized high, 2 categorized moderate, and 1 categorized low. From 20 students with moderate self-efficacy, there were 5 students categorized high, 11 categorized moderate, and 4 categorized low. From 8 students with low self-efficacy, there was only 1 students categorized high, 2 categorized moderate, and 5 categorized low.
Mathematical Problem Solving Skill Viewed from Epistemic Curiosity on Fostering Communities of Learners Hasanah, Nur; Sri Noor Asih, Tri; Kharisudin, Iqbal
Unnes Journal of Mathematics Education Research Vol 10 No A (2021): January, 2021 (Special Edition)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (708.915 KB)

Abstract

This research aims to describe mathematics problem solving skill viewed from epistemic curiosity of students on Fostering Communities of Learners of VIII graders about probability material. The design of this research was mixed concurrent – triangulation method. This mixed method took the research subjects purposively. They consisted of 6 students, each of 3 students with high and moderate epistemic curiosity. The findings showed that mathematics problem solving skill viewed from epistemic curiosity were varied. It was shown by 8 students with high epistemic curiosity whom obtained 4 high mathematics problem solving skilled students and 4 moderate skilled students. From 22 students with moderate epistemic curiosity, it obtained 10 high mathematics problem solving skilled students and 12 moderate skilled students. The students with high and moderate epistemic curiosity tended to be incapable in determining appropriate problem solving strategy.
SOLUSI KUADRAT TERKECIL MODEL REGRESI FUZZY DENGAN VARIABEL DEPENDEN FUZZY SIMETRIS Kharisudin, Iqbal
Journal of Mathematics and Mathematics Education Vol 1, No 1 (2011): Journal of Mathematics and Mathematics Education
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v1i1.9918

Abstract

ABSTRACT: It is known that the regression model used to analyze the crisp data. In the condition that there is  uncertainty  (imprecision,  vagueness)  on  values  of  observed  variables,  then  the  fuzzy  regression model is required. In this paper discussed a fuzzy regression model with symmetrical fuzzy dependent variable and crisp independent variables using the least squares approach. The method used to find the  linear  model  is  to  minimize  the  distance  function  between  observed  fuzzy  variables  with  the estimation dependent variable or the corresponding theoretical value. It is shown that the solution of this  model  is  a  generalization  of  the  classical  regression  model. Further  discussion  is  about  the properties of solution of the model.Keyword: center model, spread model, fuzzy distance, iterative solution.
Geometric Problem Solving Skill Analysis of Primary School Learners Taught by Module Assisted Independent PBL Model Faujiyah, Siti; Sukestiyarno, YL; Kharisudin, Iqbal
Educational Management Article In Pres 2021
Publisher : Educational Management

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The underlying background of this research was the importance of teaching problem solving skill as 21st-century skills. Providing a qualified learning facility to train learners solving problems is a challenge for teachers. This research applied the Problem Based Learning model as innovative learning in the form of independent learning. The learners did this independent learning with the given geometric problem solving module. The teachers guided the learning process via online. It was also monitored by the learners' parents as well as the peer tutors. After the lesson, an evaluation and a work discussion were promoted together with the school teachers. This research examined the learning quality taught by module-assisted independent PBL model. It consisted of analyzing the learning instrument validity level, the learning implementation, and the model effectiveness as indicated by the completeness and the correlation tests. This research applied a mixed method with sequential exploratory design. The finding showed the learning instrument was valid. Thus, it could be applied practically at school. The effectiveness level showed that PBL model based on independent learning and assisted by module was effective. The completeness test results, assisted by SPSS, showed Sig score higher than 5%, 0.731. Thus, it had reached the completeness. The correlation test assisted by SPSS obtained a sig score of 0.3%. It was lesser than 5%. Thus, there was a correlation between learning autonomy toward problem solving skills. Therefore, this module-assisted independent PBL model was qualified based on the plan, the implementation, and the evaluation. Thus, it could be a qualified learning alternative at primary school.
Mathematics Communication Based on Students’ Self – Efficacy in Problem Based Learning Assisted By Mobile Learning Ashim, Muhammad; Asikin, Mohammad; Kharisudin, Iqbal
Unnes Journal of Mathematics Education Research Vol 9 No 2 (2020): December 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to describe mathematics communication skill based on self-efficacy of students in problem based learning assisted by mobile learning. This research was a concurrent embedded. The population was X grade students of MAN 1 Kota Pekalongan. The technique of sampling was purposive sampling. It was selected X MIA 2 as experimental group. The subjects were grouped based on self-efficacy with high, moderate, and low categories to be interviewed about their mathematics communication skill. The instruments were test and interview. The findings showed that PBL assisted by mobile leanring was qualified. The result of mathematics communication description based on self-efficacy was varied, it was shown from 8 students with high self-efficacy, there were 5 students categorized high, 2 categorized moderate, and 1 categorized low. From 20 students with moderate self-efficacy, there were 5 students categorized high, 11 categorized moderate, and 4 categorized low. From 8 students with low self-efficacy, there was only 1 students categorized high, 2 categorized moderate, and 5 categorized low.
Co-Authors Adi Nur Cahyono Akbar, Mohammad Jefrie Ilham Al Zikir Alifatul Muyasaroh Amin Suyitno Arief Agoestanto Ashim, Muhammad Asih, Tri Sri Noor Ayu Andira Risnawati Bambang Eko Susilo Bambang Eko Susilo Dwijanto Dwijanto Emi Pujiastuti Faujiyah, Siti Gunawan Gunawan Habibie, Zulqoidi R. Hardi Suyitno Ikrimah, Annisa Isnarto Isnarto Jannatun Khustia Lubis Kartono - Kartono Kartono Lina Lutfiyana Luluk Ulfa Chasania Marthinus Yohanes Ruamba Masri'an, Hera Moh Khubaib Tamami Mohammad Asikin Muhammad Ghozian Kafi Ahsan Muna, Trimurtini, Nur Aizatun Muttaqin, Muhammad Nurul Nur Hasanah Nurhasanah, Rizki Ahid Nurkaromah Dwidayati, Nurkaromah Nuryadi Nuryadi Petronela Ivoni Susantya Rahanto, Faris Febri Rahman, Alif Aulia Rizki Ahid Nurhasanah Rochmad Rochmad S B Waluya SB Waluya SB Waluya Scolastika Mariani Sebastianus Fedi St. Budi Waluya Sufah Iliya Manazila Sugiman Sugiman Sukestiyarno Sukestiyarno Supriyono Supriyono Sutrisno, Hendrik Tsania Rahma Azzahra Vera Dewi Susanti Wahyu Arif Setyo Pambudi Walid Walid Wardono Kartono Wardono Wardono Y. L. Sukestiyarno Yeni Nurochmah YL Sukerstriyarno YL Sukestiyarno YL Sukestriyarno Zaenuri M Zaenuri Mastur Zaenuri Zaenuri