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2021

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The Evaluation Of Facilities And Infrastructure Standards Achievement Of Vocational High School In The Special Region Of Yogyakarta, Sugiyono Sugiyono Dec 2021

The Evaluation Of Facilities And Infrastructure Standards Achievement Of Vocational High School In The Special Region Of Yogyakarta, Sugiyono Sugiyono

Jurnal Penelitian dan Evaluasi Pendidikan

The objectives of the study are to determine (1) the achievement of standard facilities and infrastructure for vocational high school in the Special Region of Yogyakarta, (2) the supporting factors for achieving the standard of facilities and infrastructure, and (3) the inhibiting factors for achieving the standard of facilities and infrastructure. This study employed an evaluation research method with a survey approach. The research sample was six vocational high schools in the Special Region of Yogyakarta, which was chosen through purposive sampling, taking into Cluster 1, Cluster 2, and Cluster 3. Data collection techniques used were Focused Group Discussion techniques, …


The Implication Of Organizational Culture For Building Organizational Identity Strategy (Case Study Of Ppid Ministry Of Finance), Reinaldy Ferdiansyah, Andre Noevi Rahmanto, Yulius Slamet Dec 2021

The Implication Of Organizational Culture For Building Organizational Identity Strategy (Case Study Of Ppid Ministry Of Finance), Reinaldy Ferdiansyah, Andre Noevi Rahmanto, Yulius Slamet

Informasi

This article was made based on the changing needs of the community for information in the era of information and communication technology. To be able to communicate policies in the field of public information disclosure, the government must be able to realize transparently, effectively, efficiently and accountably. The communication process must be supported by a good and reliable organizational identity. This research was conducted to see the implications of how organizational culture changes in the digital era in the Ministry of Finance's public information service process since 2018. The organizational communication process is used as a liaison for the creation …


Discovering The Lived Experiences Of Graduate Students In The Virtual Space: Reflections And Lessons From A Phenomenological Inquiry, Ernesto Cordero Collo Dec 2021

Discovering The Lived Experiences Of Graduate Students In The Virtual Space: Reflections And Lessons From A Phenomenological Inquiry, Ernesto Cordero Collo

Informasi

The COVID-19 pandemic has radically reshaped the academic life of graduate students and revealed the inequities in the traditional education system in the Philippines. This study is a qualitative navigation of the lived accounts of development communication (devcom) graduate students at the University of the Philippines Los Baños. It foregrounds devcom as a field of theory and practice in honor of its pioneer Professor Emeritus Nora C. Quebral and her contribution to the ferment of the field. The credence of phenomenology informed the direction of this research in addressing a paucity of literature that examines the experiences of graduate students …


The Effect Of Network Convergence On Digital Culture Industry: Model Construction Of Network Industrial Economics And Empirical Study On China, Panqiang Niu, Anang Masduki, Xigen Li, Filosa Gita Sukmono Dec 2021

The Effect Of Network Convergence On Digital Culture Industry: Model Construction Of Network Industrial Economics And Empirical Study On China, Panqiang Niu, Anang Masduki, Xigen Li, Filosa Gita Sukmono

Informasi

This paper constructs the model of network economics to study the effect of different levels of network convergence on the digital culture industry. Then uses regression models and mediating effect models to test the effect mechanism of network convergence on the digital culture industry of China. This paper used panel data to conduct an empirical study. The data in this paper were quarterly. The time range was from the first quarter of 2009 to the third quarter of 2013 for 19 quarters.The three data types in econometrics are time series data, cross-sectional data, and panel data.The main conclusions are as …


The Role Of Student Activists In Strengthening Nationalist Characters In The Industrial Revolution 4.0 Era, Farid Fadillah, Suharno Suharno Dec 2021

The Role Of Student Activists In Strengthening Nationalist Characters In The Industrial Revolution 4.0 Era, Farid Fadillah, Suharno Suharno

Jurnal Civics: Media Kajian Kewarganegaraan

This study aims to (1) identify roles, (2) describe the challenges and (3) the efforts of BEM UNY activist students in strengthening the nationalist character in the era of the industrial revolution 4.0. This type of research is descriptive with a qualitative approach. The data collection techniques of this research were interviews and documentation. The subjects of this study were seven student activists from BEM UNY for the period 2020 who were determined by purposive technique. This research data analysis using qualitative analysis which consists of data collection, data reduction, data presentation, and conclusions. The results of this study are …


Assessment And Feedback Practices In The Efl Classroom, Ida Ayu Made Sri Widiastuti Dec 2021

Assessment And Feedback Practices In The Efl Classroom, Ida Ayu Made Sri Widiastuti

REID (Research and Evaluation in Education)

The present study explored the implementation of Language classroom assessment and feedback within the English as a Foreign Language (EFL) classroom. This research was conducted using a qualitative research design, and the obtained data were analyzed descriptively. Data were collected by conducting direct classroom observation using observation checklists and in-depth interviews with the three professional English instructors using an observation guide. The data were transcribed and coded according to their categories. The findings of the study indicated that the students learning progress were assessed through a short question-answer and completion test. Verbal feedback was merely provided by the teachers, and …


Students' Competence In Making Language Skill Assessment Rubric, Memet Sudaryanto, Habib Safillah Akbariski Dec 2021

Students' Competence In Making Language Skill Assessment Rubric, Memet Sudaryanto, Habib Safillah Akbariski

REID (Research and Evaluation in Education)

This study aims to describe (1) the need for an assessment of language skills rubrics; (2) students' abilities in creating holistic and analytic rubrics; (3) the potential and relevance of the application of the rubric in the micro-teaching class; (4) the obstacles faced by students in compiling the rubric. This research used mix method to answer the research questions and a quantitative approach to measure students' understanding of the rubric. Basic competence was assessed using the rubric and mapped students' competencies in designing the rubric. The qualitative rubric was used to describe students' difficulties in applying the rubrics produced in …


Evaluation Of The Implementation Of Educational Assessment Standards At Madrasah Tsanawiyah Modern Islamic Boarding School, Nurul Ngarifillaili, Badrun Kartowagiran, Umwari Yvette Dec 2021

Evaluation Of The Implementation Of Educational Assessment Standards At Madrasah Tsanawiyah Modern Islamic Boarding School, Nurul Ngarifillaili, Badrun Kartowagiran, Umwari Yvette

REID (Research and Evaluation in Education)

This study aims to collect, analyze, and present evaluation results and assess them by comparing the evaluation indicators. The evaluation focuses on achieving and implementing seven components of the Educational Assessment Standard in Islamic middle school (Madrasah Tsanawiyah or MTs) of modern Islamic boarding schools (pesantren) in the Kebumen Regency. The study employed a descriptive quantitative approach. The evaluation model was the discrepancy evaluation model. The study subjects were 227 students of grade VIII class 2020/2021. Data collection was performed using a questionnaire and brief interviews. The study result shows that 70.55% of students stated the assessment …


Profile Of The Ability Of Prospective Biology Teachers In Making Question Instruments Using Bloom's Taxonomy, Tengku Idris, Sepita Ferazona, Herlina Safitri Dec 2021

Profile Of The Ability Of Prospective Biology Teachers In Making Question Instruments Using Bloom's Taxonomy, Tengku Idris, Sepita Ferazona, Herlina Safitri

REID (Research and Evaluation in Education)

The purpose of this study is to determine students' ability to make Bloom's taxonomy questions. The study was conducted on students in the 5th semester of the 2020/2021 academic year who were taking evaluation courses and learning achievement techniques with a sample of 62 people. This research is a descriptive study using a checklist sheet as the main instrument that has been content validated by experts, questionnaires, and interviews as supporting data. Data were analyzed using the quantitative descriptive method. The results of the research show that students have very good abilities in making Bloom's taxonomy questions for the lower …


Online Da'wah As Hijra Commodification Practice In Media By @Indonesiatanpapacaran Movement, Syarifah Nur Aini, Awanis Akalili Dec 2021

Online Da'wah As Hijra Commodification Practice In Media By @Indonesiatanpapacaran Movement, Syarifah Nur Aini, Awanis Akalili

Informasi

Dakwah discussing Islamic values are not only obtainable through religious lectures, television broadcasts, or certain book category. Dakwah could also be performed by using social media; a medium that is dominated by milennials. Dakwah performed by @indonesiatanpapacaran, is an example for dakwah movement in social media. This account is favored by individuals who pursue "hijrah" (hegira/hijra). Not only introducing the nurture of Islamic values, this account also has its profitable business going. Some religious narrations could function as commodity materials, both online and offline. In the end of the day, the capitalist could gain great benefit by this account's movement. …


The Determinant Factors In Fostering Student Anti-Corruption Behavior Through Citizenship Education, Rizal Fahmi, Tubagus Saputra, Imam Solehudin, Intan Indah Megasari, Ari Febrian Dec 2021

The Determinant Factors In Fostering Student Anti-Corruption Behavior Through Citizenship Education, Rizal Fahmi, Tubagus Saputra, Imam Solehudin, Intan Indah Megasari, Ari Febrian

Jurnal Civics: Media Kajian Kewarganegaraan

Anti-corruption behavior is an excellent thing to get used to students. Efforts in this direction can be made through Citizenship Education. It is found that the determinant factors that determine the success of these efforts, therefore, why and how these factors can be the key to fostering anti-corruption behavior through Citizenship Education. The researcher's approach in this research is qualitative with a case study method to obtain in-depth answers to the problems above. Data collection techniques in this study were interviews, observations, documentation studies, and field notes. The findings of this study are that the approach as a friend and …


Kesalahan Siswa Dalam Menyelesaikan Soal Operasi Bilangan Model Ujian Negara Tingkat Smp, Alfha Vionita, Hartono Hartono Dec 2021

Kesalahan Siswa Dalam Menyelesaikan Soal Operasi Bilangan Model Ujian Negara Tingkat Smp, Alfha Vionita, Hartono Hartono

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mendeskripsikan jenis kesalahan siswa dalam menyelesaikan soal operasi bilangan model Ujian Negara (UN) untuk tingkat SMP. Penelitian ini termasuk penelitian survei dengan pendekatan kuantitatif. Survei dilaksanakan pada siswa SMP kelas IX se-Kabupaten Dharmasraya, Indonesia. Sampel penelitian sebanyak 104 siswa dipilih menggunakan teknik stratified propotional random sampling. Instrumen penelitian menggunakan tes diagnostik berupa soal uraian yang dimodifikasi dari soal pilihan ganda pada UN tingkat SMP. Hasil penelitian menunjukkan bahwa jenis kesalahan siswa dalam menyelesaikan soal operasi bilangan model UN untuk tingkat SMP yaitu kesalahan membaca (reading erorrs) sebanyak 30%; kesalahan pemahaman (comprehension errors …


Kemampuan Siswa Smp Dalam Menyelesaikan Soal Matematika Berbasis Hots, Myelnawan Myelnawan, Wahyu Setyaningrum Dec 2021

Kemampuan Siswa Smp Dalam Menyelesaikan Soal Matematika Berbasis Hots, Myelnawan Myelnawan, Wahyu Setyaningrum

Jurnal Riset Pendidikan Matematika

Penelitian deskriptif kualitatif ini bertujuan untuk mendeskripsikan kemampuan siswa SMP di Kabupaten Mamuju dalam menyelesaikan soal matematika berbasis Higher Order Thinking Skills (HOTS). Kemampuan siswa dilihat berdasarkan indikator menganalisis, mengevaluasi, dan mencipta. Subjek penelitian adalah 98 siswa SMP di Kabupaten Mamuju, Indonesia, yang berasal dari empat sekolah dengan kategori tinggi. Pengumpulan data menggunakan tes pilihan ganda, tes uraian, dan wawancara untuk menggali informasi lebih mendalam dari siswa. Hasil penelitian menunjukkan bahwa secara umum kemampuan siswa SMP di Kabupaten Mamuju dalam menyelesaikan soal matematika berbasis HOTS berada pada kriteria rendah. Persentase siswa yang mampu menjawab soal untuk indikator menganalisis termasuk pada …


Development Of A Web-Based Worksheet With A Project-Based Learning Model Assisted By Geogebra, Effie Efrida Muchlis, Nanang Priatna, Jarnawi Afgani Dahlan Dec 2021

Development Of A Web-Based Worksheet With A Project-Based Learning Model Assisted By Geogebra, Effie Efrida Muchlis, Nanang Priatna, Jarnawi Afgani Dahlan

Jurnal Riset Pendidikan Matematika

Previous studies on the use of GeoGebra in mathematics learning were more focused on implementation and effectiveness in learning outcomes. However, not many studies focus on providing opportunities to students to explore Geo­Gebra to find concepts in plane geometry through developing an application. Therefore, this research and development applied a 4D model to produce a web-based worksheet using project-based learning (PjBL) assisted by GeoGebra that was valid, practical, and effective in the plane geometry course. The web-based worksheet intended to facilitate students to be independent, creative, and able to find the concepts in the plane geometry course through exploration activities …


Keefektifan Pendekatan Stem Berbantuan Wolfram Alpha Pada Pembelajaran Matematika Ditinjau Dari Motivasi Dan Kemandirian Belajar, Atin Argianti, Sri Andayani Dec 2021

Keefektifan Pendekatan Stem Berbantuan Wolfram Alpha Pada Pembelajaran Matematika Ditinjau Dari Motivasi Dan Kemandirian Belajar, Atin Argianti, Sri Andayani

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mendeskripsikan keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari motivasi dan kemandirian belajar. Penelitian ini merupakan penelitian eksperimen semu dengan populasi seluruh siswa kelas VIII di salah satu SMP Negeri di Pati, Jawa Tengah, Indonesia. Sampel penelitian ini adalah siswa di satu kelas VIII yang dibagi menjadi 2, yaitu kelas eksperimen (kelompok siswa bernomor absen ganjil) dan kelas kontrol (kelompok siswa bernomor absen genap) dengan banyaknya siswa berturut-turut 16 dan 15 siswa. Data dikumpulkan menggunakan angket motivasi dan kemandirian belajar. Analisis data menggunakan uji t untuk mendeskripsikan keefektifan pendekatan STEM berbantuan Wolfram Alpha ditinjau dari masing-masing …


Pengaruh Adversity Quotient Dan Task Commitment Terhadap Kemampuan Pemecahan Masalah Matematika, Rina Wiji Kartika, Priarti Megawanti, Arif Rahman Hakim Dec 2021

Pengaruh Adversity Quotient Dan Task Commitment Terhadap Kemampuan Pemecahan Masalah Matematika, Rina Wiji Kartika, Priarti Megawanti, Arif Rahman Hakim

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mendeskripikan: (1) pengaruh adversity quotient dan task commitment secara bersama-sama terhadap kemampuan pemecahan masalah matematika; (2) pengaruh adversity quotient terhadap kemampuan pemecahan masalah matematika; dan (3) pengaruh task commitment terhadap kemampuan pemecahan masalah matematika. Metode penelitian adalah survei korelasional dengan teknik analisis regresi ganda. Sampel penelitian terdiri dari 83 siswa SMK di Jakarta Selatan yang diambil dengan teknik simple random sampling. Instrumen untuk mengukur adversity quotient dan task commitment menggunakan angket tertutup, sementara kemampuan pemecahan masalah matematika diukur dengan tes uraian. Hasil penelitian menunjukkan bahwa: (1) terdapat pengaruh positif signifikan adversity quotient dan task commitment …


Pengembangan Model Pembelajaran Creative Problem Solving Terintegrasi Tpack Untuk Meningkatkan Kemampuan Pemecahan Masalah, Edy Waluyo, Nuraini Nuraini Dec 2021

Pengembangan Model Pembelajaran Creative Problem Solving Terintegrasi Tpack Untuk Meningkatkan Kemampuan Pemecahan Masalah, Edy Waluyo, Nuraini Nuraini

Jurnal Riset Pendidikan Matematika

Guru perlu menerapkan model pembelajaran yang mampu mengembangkan kemampuan berpikir tingkat tinggi dan kemampuan pemecahan masalah. Penelitian ini bertujuan untuk mengembangkan model pembelajaran Creative Problem Solving (CPS) terintegrasi TPACK untuk mengembangkan dan meningkatkan kemampuan siswa dalam pemecahan masalah. Penelitian ini merupakan penelitian pengembangan dengan model pengembangan Borg & Gall. Sampel penelitian ini adalah siswa kelas VII Sekolah Menengah Petama di Lombok Timur yang berjumlah 30 siswa, yang terdiri dari 12 siswa laki laki dan 18 siswa perempuan. Instrumen yang digunakan untuk mengumpulkan data meliputi pedoman validasi desain pembelajaran CPS terintegrasi TPACK, angket kepraktisan dan tes kemampuan pemecahan masalah pada materi …


Motivation, Self-Regulated Learning, And Their Effects On Learning Outcomes Of Derivative Materials During The Covid-19 Pandemic, Analisa Fitria, Baiti Najihah, M. Amin Paris, Muh. Fajaruddin Atsnan, Maisea Ledua Nareki Dec 2021

Motivation, Self-Regulated Learning, And Their Effects On Learning Outcomes Of Derivative Materials During The Covid-19 Pandemic, Analisa Fitria, Baiti Najihah, M. Amin Paris, Muh. Fajaruddin Atsnan, Maisea Ledua Nareki

Jurnal Riset Pendidikan Matematika

The study aims to identify the effect of learning motivation and self-regulated learning on learning achievement in "Derivative" learning materials in Trigonometry Functions. The study was field research using the ex-post facto design and quantitative approach during the Covid-19 Pandemic. The population was all grade XII students of a state Islamic senior high school in South Kalimantan, Indonesia. The samples of 24 students were selected using the purposive sampling technique. The data were gathered using a questionnaire and test and through documentation and interview. The data were analysed using the descriptive statistics and the inferential statistics consisting of normality test, …


Analisis Minat Dan Keterampilan Proses Dalam Pembelajaran Matematika, Kamid Kamid, Khairul Anwar, Dewi Iriani, Ahmad Mansur Nawahdani Dec 2021

Analisis Minat Dan Keterampilan Proses Dalam Pembelajaran Matematika, Kamid Kamid, Khairul Anwar, Dewi Iriani, Ahmad Mansur Nawahdani

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mengungkap perbandingan keterampilan proses siswa dalam mata pelajaran matematika dari dua sekolah, perbandingan minat siswa dalam mata pelajaran matematika dari dua sekolah, serta hubungan antara keterampilan proses dan minat siswa pada mata pelajaran matematika. Penelitian ini jenis kuantitatif dengan tipe asosiatif dan komparatif. Sampel terdiri dari 70 siswa dari suatu SMP negeri dan 70 siswa dari suatu MTs negeri di daerah Batanghari, Jambi, Indonesia. Teknik pengambilan sampel yang digunakan adalah purvosive sampling. Data minat dan keterampilan proses dikumpulkan dengan angket yang telah divalidasi. Data dianalisis secara deskriptif dan inferensial dengan paired sample t-test dan p …


An Analysis Of Proportional Reasoning Ability Of Junior High School Students, Fitria Mardika, Ali Mahmudi Dec 2021

An Analysis Of Proportional Reasoning Ability Of Junior High School Students, Fitria Mardika, Ali Mahmudi

Jurnal Riset Pendidikan Matematika

This study aims to describe proportional reasoning skills and students' difficul­ties in solving proportional reasoning problems. The population of this research was 3480 seventh-grade students of state junior high schools in the Yogyakarta region. The samples were 158 students chosen using proportionate stratified random sampling that represent four categories of school (very high, high, me­dium, low) based on the average scores of the national examination in mathe­matics in 2016. Data were collected through essay tests and interviews. Data were analyzed quantitatively and qualitatively. The result showed that the stu­dents in very high and high category schools had moderate proportional rea­soning …


Kesulitan Siswa Sma Dalam Menyelesaikan Soal Matematika Pada Materi Peluang, Annisa Fitri, Agus Maman Abadi Dec 2021

Kesulitan Siswa Sma Dalam Menyelesaikan Soal Matematika Pada Materi Peluang, Annisa Fitri, Agus Maman Abadi

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mendeskripsikan jenis kesulitan siswa SMA dalam menyelesaikan soal matematika pada materi peluang di Kabupaten Indragiri Hilir. Penelitian ini termasuk penelitian survei dengan pendekatan kuantitatif dan kualitatif. Sampel penelitian sebanyak 284 siswa SMA kelas XI Program IPA di Kabupaten Indragiri Hilir, Indonesia, yang berasal dari sepuluh sekolah dengan kategori tinggi, sedang, dan rendah. Sampel penelitian ditentukan menggunakan teknik stratified propotional random sampling. Instrumen yang digunakan berupa tes yang telah divalidasi oleh ahli (expert judgement). Kesalahan siswa dijustifikasi berdasarkan Newman's errors categories. Hasil penelitian menunjukkan bahwa jenis kesulitan siswa dalam menyelesaikan soal matematika pada …


Efektivitas Model Pembelajaran Creative Problem Solving Ditinjau Dari Kemampuan Penalaran, Komunikasi, Dan Self Esteem, Abdillah Rachman, Raden Rosnawati Dec 2021

Efektivitas Model Pembelajaran Creative Problem Solving Ditinjau Dari Kemampuan Penalaran, Komunikasi, Dan Self Esteem, Abdillah Rachman, Raden Rosnawati

Jurnal Riset Pendidikan Matematika

Tujuan penelitian ini adalah mendeskripsikan perbedaan efektifitas model pembelajaran creative problem solving dan model pembelajaran konvensional ditinjau dari kemampuan penalaran, komunikasi, dan self-esteem. Penelitian ini adalah penelitian quasi-experiment dengan desain penelitian nonequivalent comparison group design. Subjek penelitian merupakan peserta didik di salah satu MAN di Purbalingga, Jawa Tengah, Indonesia, pada materi transformasi geometri. Sampel terdiri dari 60 siswa dari dua kelas IPA yang masing-masing mengikuti model pembelajaran konvensional dan model pembelajaran creative problem solving. Instrumen penelitian ini terdiri dari tes kemampuan penalaran, tes kemampuan komunikasi serta angket self-esteem. Teknik analisis menggunakan analisis deskriptif dan Hotteling's Trace …


Mathematics Pre-Service Teacher's Metacognitive Failure In Mathematics Online Learning, Alifiani Alifiani, Surya Sari Faradiba Dec 2021

Mathematics Pre-Service Teacher's Metacognitive Failure In Mathematics Online Learning, Alifiani Alifiani, Surya Sari Faradiba

Jurnal Riset Pendidikan Matematika

This study aims to reveal the metacognitive failures experienced by mathematics pre-service teachers based on their mistakes when solving problems in online learning during the pandemic era. This case study involved 29 participants who attended the mathematical problem test and cognitive style test, the two participants were categorized based on their cognitive style: Field Dependence (FD) and Field Independence (FI). The instrument used was a mathematical problem test to collect data on metacognitive that adapted from Stewart and a cognitive styles test to categorize the cognitive style that adapted from the Group Embedded Figures Test (GEFT). An interview was conducted …


The Effectiveness Of Treffinger's Learning Model In Increasing The Creativity And Mathematics Achievement Of Gifted Students, Kana Hidayati, Ni Kadek Swari Nandini, Mazlini Adnan Dec 2021

The Effectiveness Of Treffinger's Learning Model In Increasing The Creativity And Mathematics Achievement Of Gifted Students, Kana Hidayati, Ni Kadek Swari Nandini, Mazlini Adnan

Jurnal Riset Pendidikan Matematika

This study aims to describe the difference in creativity and mathematics achievement between gifted students who were taught by Treffinger's learning and those who thought by the expository learning in trigonometry material. This study is a quasi-experiment using a pretest-posttest group design with a population of all gifted students in class X of a State Senior High School in Bali, Indonesia. The sample was established randomly. Observation sheets, pre-test, post-test, and student creativity questionnaires were used, all of which have been validated. The data were analyzed descriptively and inferentially with the paired sample t-test to test the mean difference of …


The Role Of Microorganisms In Rare Earth Elements Bioaccumulation, Maedeh Soleimanifar Dec 2021

The Role Of Microorganisms In Rare Earth Elements Bioaccumulation, Maedeh Soleimanifar

Dissertations

Rare earth elements (REE) are valuable raw materials in our modern life. Extensive REE application from electronic devices to medical instruments and wind turbines, and non-uniform distribution of these resources around the world, make them strategically and economically important for countries. Current REE physical and chemical mining and recycling methods could have negative environmental consequences, and biologically-mediated techniques could be applied to overcome this issue.

In this research, the first objective is to investigate the bioextraction of cerium oxide and neodymium oxide nanoparticles (REE-NP) by a pure culture Methylobacterium extorquens AM1 (ATCC®14718™). Results show that adding up to 1,000 ppm …


An Analysis Of Mathematics Understanding Of Prospective Student-Teachers Of Mathematics, Ali Mahmudi Dec 2021

An Analysis Of Mathematics Understanding Of Prospective Student-Teachers Of Mathematics, Ali Mahmudi

Jurnal Riset Pendidikan Matematika

This quantitative-qualitative descriptive study aims to reveal the mathematics understanding of prospective student-teachers, describe the types of their mistakes in mathematics understanding, and recommend appropriate teaching of mathematics understanding. The subjects were 34 first-year students taking the Geometry course in the Mathematics Education Study Program, at a State University in Yogyakarta, Indonesia. The test instrument was consisting of four items, two of which were about the problems of procedural instrumental understanding and the other two were about the problems of relational understanding. The data were analyzed through the stages of reducing data, presenting data, and concluding data. The results show …


Enhancing Primary School Students' Competencies In Step By Step Controllable Argumentation Using A New Learning Environment, Dekriati Ate Dec 2021

Enhancing Primary School Students' Competencies In Step By Step Controllable Argumentation Using A New Learning Environment, Dekriati Ate

Jurnal Riset Pendidikan Matematika

For the goal of raising the mathematical performance of students, the quality of teaching has to be improved in the direction that critical thinking and a step-by-step controllable argumentation have to be established. Metacognitive activities of teachers and students can support this. The goal of the design research presented in this paper is to show how metacognitive activities in classroom discussions can be fostered and the mechanisms can be uncovered. For this purpose, on the one hand, a new learning environment - designed for learning addition and subtraction of integers in grade four - has been created. On the other …


The Relationship Of Students' Prior Knowledge And Emotional Intelligence To Mathematical Connection Ability, Muhammad Daut Siagian, Suwanto Suwanto, Rosliana Siregar Dec 2021

The Relationship Of Students' Prior Knowledge And Emotional Intelligence To Mathematical Connection Ability, Muhammad Daut Siagian, Suwanto Suwanto, Rosliana Siregar

Jurnal Riset Pendidikan Matematika

Students should have a good mathematical connection ability to support their learning success. Many factors affect the mathematical connection ability, in­cluding prior knowledge and emotional intelligence. This study aimed to des­cribe the simultaneous and partial effect of students' prior knowledge and emo­tional intelligence on mathematical connection ability. This study involved 34 ninth graders of one of the public junior high schools in Lembang Regency, Indonesia, as the sample. The data was collected using a test consisting of a prior knowledge test and a mathematical connection ability test on the circle topic, and a questionnaire to measure students' emotional intelligence. We …


Students' Mathematical Reasoning Ability In Solving Post-Covid-19 Pisa Model Math Problems, Linda Linda, Ira Asyura Dec 2021

Students' Mathematical Reasoning Ability In Solving Post-Covid-19 Pisa Model Math Problems, Linda Linda, Ira Asyura

Jurnal Riset Pendidikan Matematika

This study aims to describe the reasoning abilities of high school students in Pandeglang Regency, Indonesia in solving post-Covid-19 PISA model math problems. The subjects of this study were 80 students of two state senior high schools in Pandeglang Regency, Indonesia. The data collection used a written test consisting of four description questions in the form of PISA model math questions (levels 2, 3, 4, and 5), and were through interviews and documentation. The data analysis followed the steps of data reduction, data presentation, and conclusion drawing. The results show that the reasoning abilities of Pandeglang Regency high school students …


Tahap Berpikir Geometri Siswa Smp Berdasarkan Teori Van Hiele Ditinjau Dari Keterampilan Geometri, Sdyoko Susanto, Ali Mahmudi Dec 2021

Tahap Berpikir Geometri Siswa Smp Berdasarkan Teori Van Hiele Ditinjau Dari Keterampilan Geometri, Sdyoko Susanto, Ali Mahmudi

Jurnal Riset Pendidikan Matematika

Penelitian ini bertujuan untuk mendeskripsikan tahap berpikir geometri siswa SMP menurut teori Van Hiele ditinjau dari keterampilan geometri. Jenis penelitian adalah deskriptif menggunakan pendekatan kualitatif. Sampel penelitian adalah sembilan siswa kelas VIII dari tiga SMP Negeri Kota Sampit yang dipilih menggunakan teknik stratified proportional random sampling dan dilanjutkan dengan purposive sampling. Data penelitian dikumpulkan melalui wawancara mendalam terhadap subyek setelah diberikan tes keterampilan geometri. Teknik analisis data yang digunakan adalah kualitatif secara interaktif maju berkelanjutan di antara pengumpulan data, reduksi data, penyajian data, triangulasi data, dan penarikan kesimpulan. Hasil penelitian mengungkapkan bahwa: (1) keterampilan geometri siswa beragam pada tiap …