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All Journal Sainstek AKADEMIKA Jurnal Edukasi Matematika dan Sains Jambura Journal of Mathematics Education Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Research in the Mathematical and Natural Sciences Digital Transformation Technology (Digitech) Innovative: Journal Of Social Science Research
Abdul Djabar Mohidin
Program Studi Pendidikan Matematika, Fakultas MIPA, Universitas Negeri Gorontalo
Humanities Computer Science & IT Education Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Other

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TINJAUAN ALIRAN FLUIDA DENGAN MENGGUNAKAN METODE HOMOTOPI Mohidin, Abd. Djabar
Sainstek Vol 5, No 3, 2010
Publisher : Jurnal Sainstek

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (36.038 KB)

Abstract

Dalam makalah ini, akan dibahas tinjauan matematis mengenai gelombang permukaan pada kedalaman yang cukup besar, ayarat batas pada domain fluida yang ditunjukkan berupa fungsi taklinear, sehingga penyelesaian masalah nilai batas yang muncul menjadi sulit dilakukan baik secara analitik, maupun secara numeric dengan metode penyelesaian masalah nilai batas yang disebut metode homotopi. Air laut dianggap sebagai suatu fluida ideal, yaitu fluida yang takmampat (incompressible) dan takkental (inviscid). Domain fluida dimisalkan hanya berdimensi dua, meskipun kenyataannya berdimensi tiga. Hal ini dapat dilakukan karena sifat homogen fluida, yaitu garis arusnya pararel dengan garis arus yang lain pada suatu bidang yang tetap, bahkan partikel-partikel pada bidang tersebut memiliki kecepatan dan arah yang sama (Streeter, 1984). Garis arus adalah garis yang digambarkan pada fluida yang memiliki kemiringan pada tiap titik sama dengan kecepatan partikel fluida di titik tersebut. Masalah gelombang baik permukaan maupun internal merupakan suatu masalah taklinear, yang sulit diselesaikan secara analitik sehingga menarik perhatian peneliti sejak pertengahan abad ke-19. Stokes menggunakan metode perturbasi untuk mendapatkan solusi hampiran sampai orde ke-5 dalam penghitungan amplitudo gelombang Fluida adalah zat yang dapat mengalir, artinya zat yang bergerak terhadap sekitarnya. Persamaan dasar akan diturunkan berdasarkan hukum kekekalan massa dan momentum.
PENGARUH MODEL PENEMUAN TERBIMBING TERHADAP HASIL BELAJAR PADA MATERI PRISMA DAN LIMAS DI SMP NEGERI I TALAGA JAYA Sri Lestari Mahmud; Abdul Djabar Mohidin; Nursiya Bito; Siti Zakiyah
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi EULER: Volume 9 Issue 2 December 2021
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/euler.v9i2.11941

Abstract

This research aims to look at the influence of guided discovery learning models on students' learning outcomes. The type of research used is experimental research. Sampling in this research was conducted by simple random sampling technique. Data collection was carried out using instruments in the form of observation sheets and tests of learning outcomes. The data obtained is then analyzed descriptively and inferentially. The results of the data analysis showed that the students’ learning outcomes taught by the guided discovery model are higher than students’ learning outcomes taught by conventional models, and the guided discovery model was effective in teaching material surface area and volume of upright and pyramid prisms.
Analisis Kemampuan Pemecahan Masalah Matematika Melalui Tugas Proyek pada Materi Bilangan Bulat di SMP Negeri 1 Limboto Isnarianti Sumba; Abdul Djabar Mohidin; Siti Zakiyah
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi EULER: Volume 10 Issue 1 June 2022
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/euler.v10i1.12952

Abstract

This research is a quantitative descriptive study that aims to describe students' mathematical problem-solving abilities through project assignments on integer material. This research was conducted at SMP Negeri 1 Limboto in the even semester of the 2021/2022 academic year. The subjects in this study were class VII students, totalling 26 students. Data collection was obtained from test results in the form of project assignments and interviews were conducted to add to the information obtained. The results showed that the average achievement for students' abilities in completing project assignments was still moderate, namely 70%. This is indicated by the achievement of indicators understanding the problem by 90%, indicators planning a solution by 72%, indicators solving problems by 62% and indicators re-examining the results obtained by 52%.
PENERAPAN METODE EKSPRIMEN DALAM MENINGKATKAN MOTIVASI BELAJAR DAN HASIL BELAJAR PADA SISWA KELAS V SEKOLAH DASAR Murtin Golonggomo; Abd. Haris Panai; Abd. Djabar Mohidin
Akademika Vol 9, No 1 (2020): April 2020
Publisher : LPPM Universitas Muhammadiyah Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31314/akademika.v9i1.1034

Abstract

Penelitian ini bertujuan untuk (1) mengetahui peningkatan motivasi belajar kelas V SDN 2 Suwawa Timur Kabupaten Bone Bolango, (2) peningkatan hasil belajar siswa pada konsep tumbuhan hijau melalui metode eksperimen pada pelajaran IPA. Variabel bebas (X) dalam penelitian ini adalah metode eksperimen dan variabel terikat (Y) adalah motivasi belajar dan hasil belajar IPA. Jenis penelitian yang dilakukan adalah penelitian tindakan kelas. Sampel dalam penelitian ini adalah siswa kelas V Sekolah Dasar, sebanyak 21 siswa. Pengambilan data dalam penelitian ini dilakukan dengan menggunakan angket motivasi belajar, tes hasil belajar, lembar pengamatan aktivitas guru dalam mengelola pembelajaran, dan pengamatan aktivitas siswa dalam pembelajaran. Hasil penelitian ini menunjukan bahwa pada siklus I aktivitas siswa sebesar 66,71% pada siklus II meningkat menjadi 83,09%, aktivitas guru pada siklus I sebesar 75,76% pada siklus II meningkat menjadi 85,14%, hasil belajar siswa pada siklus I sebesar 74,15% pada siklus II meningkat menjadi 81,85%, demikian pula dengan motivasi belajar siswa pada siklus I sebesar 73,14% pada siklus II meningkat menjadi 77,10%.
Deskripsi Penggunaan Multimedia Interaktif pada Pembelajaran Matematika Bangun Ruang Sisi Lengkung Tabung Arianto A. Diu; Abdul Djabar Mohidin; Nursiya Bito; Sumarno Ismail; Resmawan Resmawan
Jambura Journal of Mathematics Education Vol 1, No 2: September 2020
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jmathedu.v1i2.7613

Abstract

Penelitian ini bertujuan untuk mendeskripsikan penggunaan multimedia interaktif pada pembelajaran matematika bangun ruang sisi lengkung. Bangun ruang sisi lengkung yang dibahas, difokuskan pada topik tabung dengan siswa SMP Negeri 2 Gorontalo sebagai subjek penelitian. Data penelitian diperoleh melalui observasi proses pembelajaran dan melalui angket respon peserta didik. Hasil penelitian menunjukkan bahwa penggunaan multimedia interaktif pada pembelajaran matematika bangun ruang sisi lengkung tabung mencapai kategori “sangat baik”, dengan indikator: kemampuan guru dalam menggunakan multimedia interaktif dalam pembelajaran sebesar 84%, aktifitas peserta didik dalam pembelajaran menggunakan multimedia interaktif sebesar 84%, dan respon positif peserta didik terhadap multimedia interaktif sebesar 85%.
Deskripsi Kesulitan Belajar Matematika Siswa pada Pokok Bahasan Bilangan Berpangkat di SMP Negeri 1 Biluhu Verawati Tarsan Kadir; Nurwan Nurwan; Siti Zakiyah; Abdul Djabar Mohidin
Jambura Journal of Mathematics Education Vol 3, No 1: Maret 2022
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jmathedu.v3i1.13279

Abstract

This article discusses student’s mathematics learning difficulties with the aim of describing student’s mathematics learning difficulties on the subject of power numbers. The method used in this research is descriptive which is carried out in class IX odd semester for the academic year 2021/2022. The subjects of this study were 20 students of class IX1of SMP Negeri 1 Biluhu. There were also three interview subjects who represented the high category, medium category, and low category. The instrument of this research is a difficult test in the form of an essay on the material of rank numbers. To see learning difficulties, 3 indicators are used, namely: (1) difficulties in learning principles, (2) difficulties in learning concepts, and (3) difficulties in learning operations. The results of this study indicate that the learning difficulties of class IX students of SMP country 1 Biluhu are in the moderate category.  
Deskripsi Kemampuan Penemuan Konsep Siswa pada Materi Turunan Fungsi Aljabar Dali, Sri Maulana; Ismail, Sumarno; Oroh, Franky Alfrits; Mohidin, Abdul Djabar
Research in the Mathematical and Natural Sciences Vol. 1 No. 2 (2022): May-October 2022
Publisher : Scimadly Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.66 KB) | DOI: 10.55657/rmns.v1i2.67

Abstract

This study aims to describe students' discovery abilities in the learning process and when facing problems in the material derived from algebraic functions. The research was carried out in one of the Senior high schools in Gorontalo. This research is a type of qualitative descriptive research. The subjects of this study were students of class XI who opened 318 people. The techniques used in data collection are initial tests, interviews, documentation, and observation. Data analysis techniques in this study are data reduction, data presentation and conclusions. The results showed that students' discovery abilities on the derivative material of algebraic functions varied. Some have high abilities, medium abilities, and low abilities, but in general, they are dominated by students who have moderate abilities.
Pengaruh Model Pembelajaran Problem-Solving Terhadap Kemampuan Berpikir Kreatif Siswa Pada Materi Pola Bilangan Suna, Ramla; Mohidin, Abdul Djabar; Katili, Nancy; Abdullah, Abdul Wahab; Majid, Majid
Research in the Mathematical and Natural Sciences Vol. 1 No. 2 (2022): May-October 2022
Publisher : Scimadly Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.782 KB) | DOI: 10.55657/rmns.v1i2.68

Abstract

This study aims to determine the effect of using the Problem-Solving learning model on students' Creative Thinking Ability with Number Patterns. This study involved 40 students as the research sample consisted of two classes, every 20 students in class A and 20 students in class B. The research method used was Experimental research with Pretest-Posttest Control Group Design. The data collection technique was obtained through the pre-test and post-test results, and the data analysis technique used the covariance analysis test. The analysis results show that the creative thinking ability of students who are taught using the Problem-Solving model is better than the creative thinking skills of students trained using the direct learning model.
Analisis Pemahaman Matematika Dalam Pembelajaran Menggunakan Multimedia Interaktif Pada Materi Segiempat Paputungan, Insyirah; Mohidin, Abdul Djabar; Majid, Majid
Research in the Mathematical and Natural Sciences Vol. 2 No. 1 (2023): November 2022-April 2023
Publisher : Scimadly Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55657/rmns.v2i1.71

Abstract

This study is a descriptive study aimed to describe the student’s mathematical understanding analysis in learning using interactive multimedia in the content of quadrangles to the 4th graders of SDN No. 98 Kota Utara. The research subjects comprised 4th graders students at SDN No. 98 Kota Utara, which amounts to 23 students. The techniques for collecting data in this research take the form of an 8-problem to expose. To measure how a student’s mathematical understanding is used 4 indicators include: (1) classifying objects according to certain qualities (according to the concept), (2) giving examples and non-examples of concepts, (3) restating a concept, (4) applying a problem-solving concept or algorithm. The study showed that the mathematics understanding of students in 4th grade in SDN No. 98 Kota Utara after learning through multimedia interactive was in enough category with a high percentage of 55.07%. As for the results of each indicator, obtained percentages, among others, are 60.87% for the first indicator and classified in the high category, 55.07% for the second indicator and classified in enough category, 63.77% for the third indicator and classified in the high category, and 43.84% for the fourth indicator and classified in enough category.
Analisis Kemampuan Pemecahan Masalah Materi Relasi dan Fungsi pada Siswa SMP Negeri 3 Satap Tabongo Numberi, Merri M; Mohidin, Abdul Djabar; Oroh, Franky Alfrits; Majid, Majid
JEMS: Jurnal Edukasi Matematika dan Sains Vol 11, No 2 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jems.v11i2.16468

Abstract

Penelitian ini merupakan penelitian deskriptif yang bertujuan untuk melihat kemampuan pemecahan masalah pada siswa kelas VIII SMP Negeri 3 Satap Tabongo yang dimana analisis terhadap soal yang diberikan. Sampel yang terdapat dalam penelitian ini berjumlah 20 siswa. Teknik yang digunakan dengan memberikan soal tes uraian  relasi dan fungsi pada sisiwa sehingga dari jawaban siswa tersebut akan dianalisis berdasarkan indicator kemampuan pemecahan masalah. Untuk mengukur bagaimana kemampuan pemecahan masalah siswa digunakan 4 indicator, antara lain: (1) kemampuan mengidentifikasi masalah, (2) kemampuan merencanakan penyelesaian masalah, (3) kemampuan penyelesaian masalah, (4) kemampuan memeriksa kembali jawaban. Hasil penelitian ini menunjukan bahwa kemampuan pemecahan masalah masih  tergolong pada kategori cukup dengan persentase 48,34%. Selanjutnya untuk hasil setiap indicator juga tergolong pada kategori cukup karena mencapai persentase masing-masing 54,33%, 48,17%, 40,47%, 41,67%.
Co-Authors Abdul Haris PanaI Abdul Wahab Abdullah Arianto A. Diu Dali, Sri Maulana Evi Hulukati Franky Alfrits Oroh Isnarianti Sumba Linggi, Adrianty Tana Pappang Mahmud, Sri Lestari Majid, Majid Manik, Kristiani Murtin Golonggomo Nancy Katili Numberi, Merri M Nursiya Bito Nurwan Nurwan Paputungan, Insyirah Resmawan Resmawan Ribunu, Apriyanto Siti Zakiyah Sumarno Ismail Suna, Ramla Verawati Tarsan Kadir