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All Journal Mechatronics, Electrical Power, and Vehicular Technology Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika Elkawnie Al-Jabar : Jurnal Pendidikan Matematika Jurnal Ilmiah Peuradeun Jurnal Ilmiah Didaktika : Media Ilmiah Pendidikan dan Pengajaran
Budi Azhari
Universitas Islam Negeri Ar-Raniry Banda Aceh
Religion Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Education Electrical & Electronics Engineering Engineering Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

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The Application and Relevancy of Rainfall-Runoff-Inundation (RRI) Model in Indonesia M. Faisi Ikhwali; Budi Azhari; Alfin Khari; Suardi Nur; Abd Mujahid Hamdan; Kingkao Prommacot
Elkawnie: Journal of Islamic Science and Technology Vol 9, No 1 (2023)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v9i1.14577

Abstract

Abstract: Indonesia has a very large number of watersheds and has a very diverse size. Damage to several watersheds in Indonesia has also occurred and often results in catastrophic floods and droughts that threaten people. The presence of the RRI Model with its capabilities will help contribute to watershed management in order to solve water resource problems. The RRI model is a two-dimensional (2D) model capable of simulating runoff, rainfall, and flood inundation simultaneously. The use of this model in Indonesia has reached 13 times which was compiled based on the number of publications on the application of the RRI model. All of these publications have passed peer-reviewed papers from both journals and conference papers. Applications have been made in several places including the Solo watershed, the Upper Citarum watershed, the Batanghari watershed, and the upstream Brantas watershed. Given the increasing number of problematic watersheds in Indonesia, the use of this model has the prospect and relevancy of being carried out in other watersheds. However, until now, researchers have had challenges in building hydrological models because of the constraints on the availability of climatological and hydrological data in the watershed. Therefore, in addition to improving the data measuring infrastructure in the field, remote sensing techniques are also needed in an effort to generate targeted watershed information. In fact, the effort to utilize remote sensing in generating unmeasurable data in the field has been successfully conducted in several studies.Abstrak: Indonesia memliki jumlah DAS yang sangat banyak dan memiliki ukuran yang sangat beragam. Kerusakan beberapa DAS di Indonesia juga telah terjadi dan sering berakibat bencana banjir dan kekeringan yang mengancam penduduk setempat. Kehadiran Model RRI dengan kemampuannya akan membantu berkontribusi dalam memajemen DAS ataupun dalam usaha untuk menyelesaikan permasalahan sumberdaya air. Model RRI adalah suatu model dua dimensi (2D) yang memiliki kemampuan untuk mensimulasikan limpasan curah hujan dan genangan banjir secara simultan. Penggunaan model RRI ini di Indonesia telah mencapai 13 kali, yang tercatat berdasarkan jumlah publikasi yang terkait dengan aplikasi model RRI. Semua publikasi tersebut telah melewati peer-review baik dari jurnal maupun dari konferensi. Aplikasi telah dilakukan dibeberapa tempat termasuk DAS Solo, DAS Citarum, DAS Batanghari, dan DAS Brantas. Mengingat jumlah DAS yang bermasalah di Indonesia semakin meningkat, maka penggunaan model ini memiliki prospek untuk dilakukan di DAS lain. Namun sampai saat ini, para peneliti memiliki tantangan dalam membangun permodelan hidrologi karena terkendala pada ketersediaan data klimatologi dan hidrologi di dalam DAS. Oleh karena itu, selain peningkatan infrastruktur pengukur data dilapangan dan teknik pengindraan jauh juga diperlukan dalam usaha menyediakan informasi DAS yang ditargetkan. Usaha penggunaan teknik pengindraan jauh dalam menyediakan data yang tidak terukur dilapangan telah sukses dan terbukti dilakukan di beberapa studi.
THE IMPLEMENTATION OF MULTIMEDIA-ASSISTED MATHEMATICAL HABITS OF MIND TO IMPROVE STUDENTS CRITICAL THINKING Lukman Ibrahim; Budi Azhari; Cut Rina Rossalina
JURNAL ILMIAH DIDAKTIKA: Media Ilmiah Pendidikan dan Pengajaran Vol 24, No 1 (2023): Jurnal Ilmiah Didaktika August 2023
Publisher : Center for Research and Publication Universitas Islam Negeri (UIN) of Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jid.v24i1.19339

Abstract

One of the current educational goals is to train students to communicate in the teaching and learning process and have the skills to think in enhancing learning outcomes, one of which is critical thinking skills. This study aimed to compare students' critical thinking skills taught by multimedia-assisted mathematical habits of mind (MHM) learning strategies and those taught by conventional learning strategies for students at SMPS Ummul Ayman Samalanga. It uses a quasi-experimental method. The population of this study is all grade 8 students at the Private Yunior High School (SMPS) Ummul Ayman Samalanga. Two classes of grade 8 were randomly selected as experimental and control groups. Data was collected by using pre-test and post-test procedures. The results of data analysis by using the independent samples t-test showed that the value of t-observation is 9.53 and the value of t-table is 1.68. So, because the value of t-observation is greater than the value of t-table, it can be concluded that students' mathematical critical thinking skills taught by MHM learning strategies are better than the critical thinking skills of those taught by conventional learning strategies. The conclusion can be reached because the instruction in the experiment class motivated students to be more active in reconstructing teaching materials individually and in pairs.
Development of A Dyscalculia Identification Test Instrument Budi Azhari; Rahmah Johar; Evi Ramadhani; Mailizar Mailizar
Elkawnie: Journal of Islamic Science and Technology Vol 10, No 1 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v10i1.23347

Abstract

Abstract: This research aims to develop a dyscalculia test instrument for early identification of children with dyscalculia learning disorders through a series of validity and reliability tests involving various experts from various related fields. This research uses the Tessmer model in developing test instruments through several stages, including: preliminary, self evaluation, prototyping (expert reviews, one-to-one, and small group), and field tests. The research results show that each research variable, namely X1 (type A), X2 (type B), and X3 (Dyscalculia), has met high validity. All question items in these three variables have an r-value that exceeds the r-table, ensuring that the instrument measures what it is intended to measure and reflects the construct accurately. The reliability test results show that each variable has a raw_alpha above 0.80, which reflects very high reliability. This shows that the instrument has the ability to produce consistent and reliable results under repeated use and on different samples. So that the instrument developed can be used to identify and diagnose dyscalculic children in helping dyscalculic children overcome the difficulty of learning mathematics.Abstrak: Penelitian ini bertujuan untuk mengembangkan instrumen tes diskalkulia untuk mengidentifikasi awal anak dengan gangguan belajar diskalkulia melalui serangkaian uji validitas dan reliabilitas yang melibatkan berbagai pihak ahli dari berbagai bidang terkait. Penelitian ini menggunakan model Tessmer dalam mengembangkan instrumen tes melalui beberapa tahapan, antara lain: preliminary, self evaluation, prototyping (expert reviews, one-to-one, dan small group), dan field test. Hasil penelitian menunjukkan bahwa setiap variabel penelitian, yakni X1 (tipe A), X2 (tipe B), dan X3 (Diskalkulia), telah memenuhi validitas yang tinggi. Semua item soal di ketiga variabel tersebut memiliki r-hitung yang melebihi r-tabel, memastikan bahwa instrumen mengukur apa yang dimaksudkan untuk diukur dan mencerminkan konstruk dengan akurat. Hasil uji reliabilitas menunjukkan bahwa setiap variabel memiliki raw_alpha di atas 0,80, yang mencerminkan reliabilitas yang sangat tinggi. Ini menunjukkan bahwa instrumen memiliki kemampuan untuk menghasilkan hasil yang konsisten dan dapat diandalkan dalam penggunaan berulang dan pada sampel yang berbeda. Sehingga instrumen yang dikembangkan dapat digunakan keperluaan identifiksi dan mendiagnosa anak diskalkulia dalam membantu anak diskalkulia mengatasi masalah kesulitan belajar matematika.
Students Ability to Solve Mathematical Problem Through Online Learning During Covid-19 Pandemic Azhari, Budi; Nurhalimah, Nurhalimah; Anwar, Anwar; Abidin, Zainal
Al-Khawarizmi Vol 6, No 1 (2022): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v6i1.14249

Abstract

The purpose of this study is to examine the solving skill of students on mathematical problem through online learning during COVID-19 pandemic, particularly in solving the problem related area and perimeter of trapezium. Data collection is conducted by performing problem solving skill test and interview. Furthermore, the data analyses is conducted by data reduction, data presentation and conclusion formulation. This study concludes that students have very good ability to solve the problem during the online learning through whatsapp group and g-meet. Detail of the steps used in examining the problem solving abilty as follow: 1) problem comprehension; students as research subject able to explain the problem by using their own terms, analyse the problem by stating the known and unsolved variables and illustrating the provided pictures 2) planning the problem solving; subject can determine other condition from the problem, selecting and structuring the steps to solve the problems 3) implementing the problem solving; subject solved the problem by using the selected formula accordingly 4) cross-checking; subject cross-checked the solutions by using other method and compared the results.
MODEL-ELICITING ACTIVITIES DALAM MENGANALISIS KREATIVITAS PEMECAHAN MASALAH MATEMATIKA PADA MAHASISWA PENDIDIKAN MATEMATIKA DI PTKIN ACEH Azhari, Budi; Irfan, Ade
Al-Khawarizmi Vol 2, No 1 (2018): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v2i1.4495

Abstract

This study aimed to know the components of the student creativity in problem solving that can be achieved through Model Eliciting Activities in preservice’s teacher of mathematics education of PTKIN in Aceh. This Research used qualitatif approach, since in this study want to describe the reality on the field namely data about the studets’ creativity in solving maths problem. The result showed that the componentsof flexibility obtained by contruction principle, the reality principle, and the self-just my assesment principle. Even so, there are student who got no flexibility with the third principle of the MEA, but only with the principles, the only reality MEA principle and the effective prototype principle. Mean while, the component of fluency is gained student by analysis of the construct documentation principle. The last component of creativity that is obtained through the construct shareability and reusability and the effective prototype principle. However there are students who do not obtain theses components due to the absence of new student-generated in carrying out problem-solving.
IDENTIFIKASI GANGGUAN BELAJAR DYSCALCULIA PADA SISWA MADRASAH IBTIDAIYAH Azhari, Budi
Al-Khawarizmi Vol 1, No 1 (2017): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v1i1.1732

Abstract

Dyscalculia is a kind of problems facing by many pupils beside of low-level reading skills. In fact, reading and basic arithmetic operation skills are very important in learning other subjects. The purpose of this study was to examine learning problems of dyscalculia students. The subjects of this study were five Madrasah Ibtidaiyah (MI) in Kabupaten Aceh Tamiang. The results showed that dyscalculia students face some difficulties in understanding the concepts or the process of calculation since they find some difficulties in visual processing. Moreover, dyscalculia students also face some difficulties in counting the numbers according to their sequences, memorizing and applying mathematical operations. As the consequence, dyscalculia students face some difficulties in solving even a simple mathematical problem.
Mathematics Learning Model for Children with Dyscalculia through Special Intervention Azhari, Budi; Johar, Rahmah; Ramadhani, Evi; Mailizar, Mailizar; Safrina, Khusnul
Jurnal Ilmiah Peuradeun Vol. 12 No. 3 (2024): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/peuradeun.v12i3.1528

Abstract

This research aimed to formulate a model of mathematical learning difficulties for children with dyscalculia to help children with dyscalculia overcome mathematics problems at school. This research is important to carry out considering that dyscalculia is a serious problem experienced by many students throughout the world. The SDTA model was built by analogizing the STIR model to non-communicable diseases. In this study, of 1247 students who conducted a series of tests (screening tests), there were 121 students, or 9.7% were initially identified as having dyscalculia. Furthermore, observations were carried out and confirmation was carried out with parents and teachers so that 119 students tested positive for dyscalculia. The research results showed that after intervention through treatment by the teacher, dyscalculia students experienced a very drastic decrease, especially in the material on recognizing and ordering numbers. Likewise, the results of model simulations on multiplication operation material illustrated the decline in students with dyscalculia. Specifically for division operations, the treatment process took relatively longer. Therefore, the simulation results in the SDTA model reflected students who are identified as having dyscalculia, along with planned intervention/ treatment, students could pass through the mathematics learning phase successfully.
Design of switched reluctance motor as actuator in an end-effector-based wrist rehabilitation robot Azhari, Budi; Hikmawan, Muhammad Fathul; Nugraha, Aditya Sukma; Yazid, Edwar; Pakha, Aji Nasirohman; Baskoro, Catur Hilman Adritya Haryo Bhakti; Rahmat, Rahmat; Ramadiansyah, Mohamad Luthfi
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 15, No 2 (2024)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/j.mev.2024.1109

Abstract

The non-communicable diseases have become the top cause of global mortality. One of them is stroke, which also become the first cause of disability worldwide. To help rehabilitate the upper extremities function of stroke survivors, a rehabilitation aid robot is developed, also to bridge the gap between patient and medical staff numbers. An end-effector-based rehabilitation robot is one proposed device. In this case, a switched reluctance motor (SRM) can be utilized as the actuator for its simplicity, robustness, high low-speed torque, and low cost. Thus, this paper proposes a design of SRM to be used as the actuator of an end-effector-based wrist rehabilitation robot. The proposed design is made based on the required torque. To extract the outputs, calculation and simulation using finite element magnetic FEMM 4.2 are conducted. The results show that the SRM produces enough torque, according to references. Moreover, rotor tooth width reduction is not preferred, as it increases the negative torque even though it raises the saliency ratio and cuts the mass of the motor.
Extended F-Expansion Method for Solving the modified Korteweg-de Vries (mKdV) Equation Apriliani, Vina; Maulidi, Ikhsan; Azhari, Budi
Al-Jabar: Jurnal Pendidikan Matematika Vol 11 No 1 (2020): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v11i1.5153

Abstract

One of the phenomenon in marine science that is often encountered is the phenomenon of water waves. Waves that occur below the surface of seawater are called internal waves. One of the mathematical models that can represent solitary internal waves is the modified Korteweg-de Vries (mKdV) equation. Many methods can be used to construct the solution of the mKdV wave equation, one of which is the extended F-expansion method. The purpose of this study is to determine the solution of the mKdV wave equation using the extended F-expansion method. The result of solving the mKdV wave equation is the exact solutions. The exact solutions of the mKdV wave equation are expressed in the Jacobi elliptic functions, trigonometric functions, and hyperbolic functions. From this research, it is expected to be able to add insight and knowledge about the implementation of the innovative methods for solving wave equations. 
Learning for Children with Special Needs of Dyscalculia Azhari, Budi; Yacoeb, Muhammad; Irfan, Ade
Jurnal Ilmiah Peuradeun Vol. 8 No. 3 (2020): Jurnal Ilmiah Peuradeun
Publisher : SCAD Independent

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26811/peuradeun.v8i3.550

Abstract

This study aimed to develop mathematics learning tools to help children with special needs of dyscalculia in elementary school. The procedural development of the device was through a 4-D model consisting of four phases; defining, designing, developing, and disseminating. However, based on the research objectives, this development was limited only to the development stage (develop), which is to the learning device testing activities. So the development of learning tools in this study consisted of three main stages, namely: defining, designing, and development. The results of this study illustrated that learning devices for children with dyscalculia learning disorders could help children more easily deal with learning difficulties. Specifically, it is on the topic of sequencing numbers, addition, and subtraction of integers.
Co-Authors Abd Mujahid Hamdan Ade Irfan Alfin Khari Anwar Anwar Baskoro, Catur Hilman Adritya Haryo Bhakti Cut Rina Rossalina Edwar Yazid Evi Ramadhani Hikmawan, Muhammad Fathul Ikhsan Maulidi Khusnul Safrina Kingkao Prommacot Lukman Ibrahim M. Faisi Ikhwali Mailizar Mailizar Mailizar Mailizar Maulidi, Ikhsan Muhammad Yacoeb Nurhalimah Nurhalimah Pakha, Aji Nasirohman Rahmah Johar Rahmah Johar Rahmat Rahmat Ramadhani, Evi Ramadiansyah, Mohamad Luthfi Suardi Nur Sukma Aditya Vina Apriliani Zainal Abidin