bluuebunny/crossref_metadata_2025_split huggingface dataset:
PENGEMBANGAN MODUL MATEMATIKA BERBASIS INKUIRI DISERTAI NILAI-NILAI ISLAM PADA MATERI BANGUN RUANG SISI DATAR
Authors: Prawito Muhammad Galih , Sudarman Sudarman , Rahmawati Dwi 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk (1) mengembangkan sebuah modul matematika yang berbasis inkuiri disertai nilai-nilai islam pada materi bangun ruang sisi datar pada kelas VIII di MTs Ma’arif 1 punggur. (2) Mengetahui modul matematika memenuhi kriteria valid dan praktis. (3) Mengetahui modul matematika dapat mengatasi kekurangan sehingga bisa meningkatkan hasil belajar peserta didik. Prosedur pengembangan modul matematika dalam penelitian ini mengacu pada model pengembangan 4-D (Define, Design, Develop, Disseminste). Penelitian ini dilakukan di MTs Ma’arif 1 punggur. Subjek penelitian ini adalah peserta didik kelas VIII di MTs Ma’arif 1 punggur. Objek penelitian adalah modul matematika yang berbasis inkuiri disertai nilai-nilai islam. Jenis data yang digunakan dalam penelitian menggunakan data kualitatif dan kuantatif. Instrumen dalam pengambilan data menggunakan angket validasi dan angket kepraktisan. Berdasarkan hasil validasi dan uji coba kepraktisan didapatkan presentasi kevalidan sebesar 79% selanjutnya hasil uji coba kepraktisan didapatkan presentase 74% sehingga dapat dinyatakan praktis dan valid. Serta dapat memfasilitasi ketersedian bahan ajar dan meningkatkan hasil belajar sebesar 0,405 kategori sedang.
Kata kunci: bangun ruang sisi datar; inkuiri; modul pengembangan

ABSTRACT
This study aims to (1) develop an inquiry-based mathematics module with Islamic values ​​on the material of flat-sided building in class VIII at MTs Ma'arif 1 punggur. (2) Knowing that the mathematics module meets valid and practical criteria. (3) Knowing the mathematics module can overcome deficiencies so that it can improve student learning outcomes. The procedure for developing a mathematics module in this study refers to the 4-D development model (Define, Design, Develop, Disseminste). This research was conducted at MTs Ma'arif 1 punggur. The subjects of this study were students of class VIII at MTs Ma'arif 1 punggur. The object of research is a mathematics module based on inquiry accompanied by Islamic values. The type of data used in the study used qualitative and quantative data. The instrument in data collection used a validation questionnaire and a practicality questionnaire. Based on the results of the validation and practicality testing, the validity presentation was 79%, then the practicality test results obtained a percentage of 74% so that it could be declared practical and valid. And can facilitate the availability of teaching materials and improve learning outcomes by 0.405 medium category.
Keywords: development module; flat side room; inquiry
PENGEMBANGAN MULTIMEDIA INTERAKTIF BERBASIS REALISTIC MATEMATICS EDUCATION PADA MATERI PERSAMAAN DAN PERTIDAKSAMAAN NILAI MUTLAK
Authors: Setiyowati Zeni Kharomah , Ahmad Jazim , Rizki Swaditya 
Published: March 2022

ABSTRAK
Pengembangan multimedia interaktif berbasis Realistic Mathematics Education (RME) pada materi Persamaan dan Pertidaksamaan Nilai Mutlak Satu Variabel bertujuan menghasilkan produk yang layak dan praktis. Penelitian dan pengembangan ini menggunakan Four D Model atau 4-D yang terdiri dari Define, Design, Develop dan Disseminate. Instrumen dalam penelitian pengembangan menggunakan angket validasi ahli materi dan ahli media untuk mengetahui kriteria kelayakan, angket respon peserta didik dan angket wawancara untuk mengetahui kriteria kepraktisan. Analisis data terbagi menjadi 2 yaitu data kuantitatif berupa persentase dan kualitatatif berupa deskripsi. Persentase kelayakan materi sebesar 72% dan 76,8% dengan interpretasi kuat, kelayakan media sebesar 71,2% dan 76% dengan interpretasi kuat sedangkan kepraktisan sebesar 80,16% dengan interpretasi sangat kuat. Berdasarkan hasil penelitian dan pengembangan dapat disimpulkan bahwa produk berupa multimedia interaktif berbasis Realistic Mathematics Education (RME) pada materi Persamaan dan Pertidaksamaan Nilai Mutlak layak dan sangat praktis. Sehingga penggunaan multimedia interaktif dapat mempermudah peserta didik dalam memahami materi pembelajaran dan menunjang tercapainya tujuan pembelajaran.
Kata kunci: multimedia interaktif; nilai mutlak; pengembangan; RME

ABSTRACT
The development of Realistic Mathematics Education (RME) based interactive multimedia on the Equations and Inequality of Absolute One Variable Value aims to produce instructional products that are feasible and practical. This research and development uses the Four D Model or 4-D which consists of Define, Design, Develop, and Disseminate. The instruments used are material and instructional media validation questionnaires from experts to know the eligibility criteria. Besides, it uses a questionnaire of students' responses and interviews to determine practicality criteria. The data analysis is divided into two: quantitative data in the form of percentages, and qualitative in the form of descriptions. The percentage of material feasibility is 72% and 76,8% with strong interpretation. On the other hand, the feasibility of media is 71,2%, and 76% with strong interpretation. While the practicality is 80,16% with very strong interpretation. Based on the results of research and development, it can be concluded that the product in the form of Realistic Mathematics Education (RME) based interactive multimedia on the Equations and Inequality of Absolute One Variable Value is feasible and very practical. So that the use of interactive multimedia can make students easier to understand learning materials and support the achievement of learning objectives.
Keywords: absolute value; development; interactive multimedia; RME
PENGEMBANGAN ALAT PERAGA PAPAN PERKALIAN BERBASIS PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA
Authors: Juandi Juandi , Firdaus Muhamad , Oktaviana Dwi 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk mengembangkan alat peraga papan perkalian berbasis Problem Based Learning terhadap kemampuan pemecahan masalah matematis dalam materi bilangan bulat pada siswa kelas VII MTs. Al-Ihsan Padang Tikar yang valid, praktis, dan efektif. Penelitian ini merupakan penelitian pengembangan yang mengacu pada model menurut Borg and Gall yang dimodifikasi menjadi 7 langkah yaitu (1) potensi dan masalah (2) pengumpulan data (3) desain produk (4) validasi desain (5) revisi desain (6) uji coba produk (7) revisi produk. Instrumen yang digunakan berupa lembar validasi, angket dan soal test. Angket digunakan untuk validasi ahli, respon guru dan siswa, sedangkan soal tes digunakan untuk penilaian kemampuan pemecahan masalah matematis siswa. Penelitian ini menghasilkan alat peraga dengan tingkat kevalidan sebesar 82,86% dengan kriteria valid, hasil angket respon guru dan siswa dengan rata-rata sebesar 82,86% dengan kriteria praktis dan hasil pengerjaan soal test kemampuan pemecahan masalah matematis oleh siswa sebesar 70,00% dengan kriteria efektif.
Kata kunci; alat peraga papan perkalian; pemecahan masalah matematis; problem based learning

ABSTRACT
This study aims to develop amultiplication board props for Problem Based Learning mathematical problem solving abilities in integer material for grade VII students of MTs. Al-Ihsan Padang Tikar which is valid, practical, and effective. This research is a development research that refers to the model according to Borg and Gall which is modified into 7 steps, namely (1) potentials and problems (2) data collection (3) product design (4) design validation (5) design revision (6) testing product (7) product revision. The instrument used were validation sheets, questionnaires andquestions test. Questionnaires are used for expert validation, teacher and student responses, while test questions are used for assessing students' mathematical problem-solving abilities. This study produced props with a validity level of 82.86% with valid criteria, the results of the teacher and student response questionnaires with an average of 82.86% with practical criteria and the results of thequestions were test students' mathematical problem solving ability 70.00. % with effective criteria.
Keywords; mathematical problem solving; multiplication board props; problem based learning
PENGEMBANGAN MEDIA PEMBELAJARAN MATEMATIKA BERBASIS ANDROID MENGGUNAKAN PENDEKATAN REALISTIC MATHEMATICS EDUCATION (RME)
Authors: Indriyani Eka , ES. Yeni Rahmawati , Vahlia Ira 
Published: March 2022

This research and development aims to produce Android-based mathematics learning media using the Realistic Mathematics Education (RME) approach is valid and practical criteria. This development uses the ADDIE development model which consists of analyze, design, development, implementation, and evaluation. But due to time constraints and the Covid-19 pandemic, this research does not use the stage. implementation and only arrived at the development stage. The results of the analysis at the validation test stage by the validator produced a percentage based on 2 aspects, namely 80.67% material and 86% media aspects included, and The average percentage of learning media validity is 83.33% so that the learning media is included in the very valid category. Furthermore, the results of the analysis of the practicality test 10 phase by class X produced an average percentage of 86,66% and entered the very practical criteria. Based on the validity test and practicality test carried out, it can be concluded that the Android-based mathematics learning media uses the Realistic Mathematics Education (RME) approach declared valid and practical to use.
PENGEMBANGAN MODUL POP UP BOOK BERBASIS RME (REALISTIC MATHEMATIC EDUCATION) PADA MATERI BANGUN RUANG SISI LENGKUNG DI MADRASAH TSANAWIYAH EL-QODAR
Authors: Dayani Okky Wulan , Agustina Rina , Vahlia Ira 
Published: March 2022

ABSTRAK
Pengembangan modul pop up book berbasis RME (Realistic Mathematics Education ) pada materi Bangun Ruang Sisi Lengkung bertujuan menghasilkan produk yang valid dan praktis. Metode penelitian 4-D yang terdiri dari Define, Design, dan Develop. Instrumen dalam penelitian pengembangan menggunakan angket validasi ahli materi dan bahasa dan ahli desain untuk mengetahui kriteria kevalidan, angket respon siswa untuk mengetahui kriteria kepraktisan. Persentase rata-rata kelayakan materi dan bahasa, dan kelayakn desain sebesar 82,24% dengan kategori sangat layak sedangkan kepraktisan sebesar 90,8% dengan sangat praktis. Berdasarkan hasil penelitian dan pengembangan dapat disimpulkan bahwa produk berupa modul pop up book berbasis RME (Realistic Mathematics Education )
Kata kunci: modul; pengembangan; Pop Up Book; RME

ABSTRACT
The development of a pop up book module based on RME (Realistic Mathematics Education) on the material of Building a Curved Side of Space aims to produce a valid and practical product. The 4-D research method consisting of Define, Design, and Develop. The instrument in development research used a validation questionnaire for material and language experts and design experts to determine the validity criteria, and a student response questionnaire to determine the criteria for practicality. The average percentage of material and language feasibility, and design feasibility is 82.24% with the very feasible category while the practicality is 90.8% very practical. Based on the results of research and development, it can be concluded that the product is a pop up book module based on RME (Realistic Mathematics Education).
Key words: development, modul, Pop Up Book, RME
ANALISIS KESALAHAN SISWA DENGAN GAYA BELAJAR AUDITORIAL DALAM MENYELESAIKAN MASALAH BARIS DAN DERET
Authors: Farida Nurul , Jati Danang Pramono , Setiawan Dika , Setia Azzara Putri , Afifa Afida Desta 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk mendeskripsikan jenis kesalahan peserta didik dengan gayabelajar auditorial dalam menyelesaikan soal cerita. Penelitian ini menggunakan menggunakan pendekatan kualititatif dengan jenis penelitian deskriptif.Penelitian ini menggunakan 4 peserta didik kelas XI sebagai subjek penelitian dan kesalahan-kesalahan peserta didik dalam mengerjakan soal sebagai objek penelitian. Pada penelitian ini menggunakan metode angket, tes tulis dan wawancara.Dari hasil penelitian menunjukan bahwa jenis kesalahan peserta didik dengan gayabelajar auditorial dalam mrnyelesaikan soal cerita adalah kesalahan dalam mengubah informasi kedalam simbol-simbol matematika,kesalahan karena tidak menulis informasi yang diketahi disoal, kesalahan siswa dalam mengunakan rumus yang kurang tepat, kesalahandalam proses menghitung rumus,kesalahan karena tidakmenuliskan kesimpulan.
Kata kunci: gaya belajar; kesalahan siswa, soal cerita matematika.

ABSTRACT
This study aims to describe the types of students' mistakes with auditory learning styles in solving story problems. This study uses a qualitative approach with a descriptive type of research. This study uses 4 students of class XI as research subjects and students' mistakes in working on questions as research objects. In this study using the method of questionnaires, written tests and interviews. The results of the study indicate that the types of errors of students with auditory learning styles in solving story problems are errors in converting information into mathematical symbols, errors for not writing information that is known in the question, student errors in using inaccurate formulas, errors in the counting process formulas, errors for not writing conclusions.
Keywords: learning style; student mistakes, math story problems.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH DALAM MENYELESAIKAN SOAL STATISTIKA
Authors: Vahlia Ira , Ramadhani Neli , Lorenza Nia , Febrilia Ninda Ahmad 
Published: March 2022

ABSTRAK
Penelitian ini bertujuan untuk menganalisis kemampuan siswa dalam menyelesaikan soal matematika pada materi statistika siswa kelas VIII SMPN 1 Bandar Mataram Lampung Tengah. Jenis penelitian ini adalah kualitatif deskriptif. Penelitian ini berusaha untuk mendeskripsikan kemampuan pemecahan masalah dalam menyelesaikan soal statistika. Penelitian ini dilakukan oleh siswa kelas VIII SMPN 1 Bandar Mataram Lampung Tengah, Data diperoleh dari hasil tes tertulis materi statistik dan hasil wawancara. Subjek dalam penelitian ini adalah berjumlah 9 siswa yang dipilih secara acak. Berdasarkan hasil kemampuan pemecahan masalah menyelesaikan soal statistika, siswa yang memiliki kemampuan pemecahan masalah tinggi dan sedang; (a) Siswa mampu memahami masalah dengan menuliskan informasi yang diketauhi di dalam soal, hanya saja siswa yang memiliki kemampuan pemecahan masalah sedang siswa tidak menuliskan informasi yang diketahui di dalam soal, (b) Pada tahap merencakan siswa mampu mencari hal hal yang perlu dicari untuk melakukan penyelesaian masalah, (c) Siswa mampu melaksanakan rencana penyelesaian sesuai dengan apa yang telah direncanakan. Siswa yang memiliki kemampuan pemecahan masalah rendah; (a) Siswa kurang memahami masalah atau informasi yang diketahui di dalam soal, (b) Pada tahap perencanaan siswa mampu menebak konsep atau rumus yang diperlukan akan tetapi pada pelaksanaan siswa tidak melakukan sesuai rencana.
Kata kunci: Analisis; pemecahan masalah; Statistika

ABSTRACT
This study aims to analyze the students' ability to solve math problems in the statistical material of class VIII SMPN 1 Bandar Mataram, Central Lampung. This type of research is descriptive qualitative. This study seeks to describe problem solving skills in solving statistical problems. This research was conducted by eighth grade students of SMPN 1 Bandar Mataram, Central Lampung. The data were obtained from the results of written tests of statistical materials and interviews. The subjects in this study were 9 students who were randomly selected. Based on the results of problem solving ability to solve statistical problems, students who have high and moderate problem solving abilities; (a) Students are able to understand the problem by writing down the information that is known in the problem, only students who have problem solving abilities are students who do not write down the information that is known in the problem, (b) At the planning stage students are able to find things that need to be looked for do problem solving, (c) Students are able to carry out the plan of completion according to what has been planned. Students who have low problem solving skills; (a) Students do not understand the problem or information that is known in the problem, (b) At the planning stage students are able to guess the concept or formula needed but in the implementation students do not do as planned.
Keywords: Analysis; problem solving ; Statistics
INOVASI PEMBELAJARAN ANAK DISKALKULIA
Authors: Khasanah Binti Anisaul , Sutriningsih Naning , Sektiawan Hendrik 
Published: March 2022

ABSTRAK
Matematika adalah cabang ilmu yang sangat penting untuk kehidupan. Hal ini menjadikan matematika harus dikuasai oleh setiap orang. Namun, adanya penemuan berupa kasus diskalkulia yang menjadi perhatian khusus di seluruh dunia, termasuk Indonesia. Diskalkulia adalah kondisi dimana anak mengalami kesulitan dalam belajar dan memahami matematika. Diskalkulia banyak ditemukan pada anak usia 7-12 tahun. Anak yang menderita diskalkulia cenderung tidak mampu dalam memahami aritmatika, baik dalam membaca simbol matematika, memahami konsep matematika, kesulitan membaca jam, kesulitan dalam melakukan operasi hitung, kesulitan mengenali angka, bahkan tidak mampu dalam memahami soal cerita, dan beberapa indikator lainnya. Tujuan dari penelitian ini adalah Tujuan dari penelitian ini adalah mengkaji peran teknologi sebagai inovasi pembelajaran untuk anak diskalkulia dalam mengatasi kesulitan belajarnya. Penelitian ini merupakan jenis penelitian kualitatif dengan metode studi pustaka, yaitu dengan melakukan kajian mengenai peran teknologi dalam membantu siswa diskalkulia. Berdasarkan hasil kajian diperoleh bahwa peran teknologi mampu membantu siswa diskalkulia mengatasi kesulitan belajarnya, yakni belajar melalui media game yang menyenangkan serta memberikan edukasi secara tepat sasaran dan efektif.
Kata kunci: diskalkulia, kesulitan matematika; media games.

ABSTRACT
Mathematics is a branch of science that is very important for life. This makes mathematics must be mastered by everyone. However, there are findings in the form of cases of dyscalculia which are of particular concern throughout the world, including Indonesia. Dyscalculia is a condition in which children have difficulty learning and understanding mathematics. Dyscalculia is commonly found in children aged 7-12 years. Children who suffer from dyscalculia tend to be unable to understand arithmetic, both in reading mathematical symbols, understanding mathematical concepts, difficulty reading clocks, difficulty in performing arithmetic operations, difficulty recognizing numbers, even being unable to understand story problems, and several other indicators. The purpose of this study was to examine the role of technology as a learning innovation for dyscalculia children in overcoming their learning difficulties. This research is a type of qualitative research with a literature study method, namely by conducting a study on the role of technology in helping students with dyscalculia. Based on the results of the study, it was found that the role of technology was able to help dyscalculia students overcome their learning difficulties, namely learning through fun game media and providing targeted and effective education.
Keywords: dyscalculia, mathematics difficulty, media Games.
Fabrication of PDMS chips by laser engraving for protein enrichments
Authors: Sun Linlin , Ding Ao , Chen Yangbo , Yang Xue , Yin Zhifu , Fang Yuqiang 
Published: March 2022

Abstract
PDMS (Polydimethylsiloxane) chips are increasingly important for the application of fluorescence measurements due to their auto-fluorescence free, excellent transparency, and biocompatibility. However, the design of PDMS microfluidic chips requires to fabricate plenty of molds for structure optimization, resulting in high cost. In the present, PDMS chips with nafion membrane were fabricated by simple and low-cost method for bull serum albumin (BSA) enrichment. To optimize the laser cutting and bonding parameters, simulation models were established using Bilinear Kinematic and Mooney-Rivlin models, respectively. The influence of laser power and cutting speed on the width and depth of the micro-channels was investigated. And the effect of bonding pressure on the deformation of PDMS micro-channel and stress distribution near the micro-channels was also analyzed. The leakage test and BSA enrichment demonstrated the practicability and feasibility of the present fabrication method in this work.
Anti windup GPC speed controller for induction machine based on Youla parametrization
Authors: Otmane Khelifa Khelifi 
Published: March 2022

Abstract
In the induction motor indirect vector control system, because of its physical limitations, the large step change in the speed command and/or load would eventually cause the so-called “integral windup phenomenon” which causes unexpected behavior of the system. To counteract this problem, an anti- windup generalized predictive speed control method is proposed by using the Youla parametrization. As first step, the design of an initial GPC controller based on its polynomial equivalent structure is required. Then, thanks to the Youla parametrization, this controller is retuned considering two specifications. The first is a frequency specification on the quadratic component of stator current response to the speed reference. And the second is a time domain constraint on the measured speed response to the speed reference. These constraints are formulated within a convex optimization framework. The simulation results proved the efficiency of the present design method.
Studying the Thermal Influence on the Vibration of Rotating Blades
Authors: Abbas Abbas Fadhil , Hamzah Adawiya Ali 
Published: March 2022

Abstract
Computing the vibrating characteristics of any machine or structure is a necessary process that should be performed by the mechanical engineers that work in engineering design field to avoid the collapse under different kinds of applied loads. One of these kinds of structures are the rotating blades, whereas this part is considered as an essential element in many rotating systems that are used in different fields of engineering, e.g., turbomachinery, turbofan, helicopters, etc. One of the biggest disadvantages that is realized in rotating blades is failure due to vibrations and unbalance. It is possible that vibrations significantly reduce the performance of rotating blades compared to standard design conditions. If these rotating blades continue to operate under these circumstances for sufficient time, then the status of these systems will be unstable. Finally, this will lead to collapse of the rotating blades. In this work, a new code was created from scratch, based on the finite element method, to determine the vibrational characteristics of the rotating blades, taking into consideration the effect of rotating speed and temperatures. The compound influence of thermal gradients and rotating speed on the vibrational response (frequencies) for different configurations of blade was studied deeply.