Institut Keguruan Dan Ilmu Pendidikan (IKIP) Mataram - Open Journal System
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MODEL PEMBELAJARAN MRSA DAN PENGARUHNYA TERHADAP KINERJA PENALARAN MERs DAN KETERAMPILAN PEMODELAN SISTEM KOMPLEKS MAHASISWA
Get PDFStructure adaptation is caused by the interaction of plants with the environment, so it requires system thinking in understanding it. This study was conducted to examine the instructional impact of the Multiple Representations Supported Argumentation (MRSA) learning model which involves students doing reasoning using multi representations to facilitate complex system modeling skills. The study was conducted with an iterative design that involves collecting data with MERs reasoning instruments and modeling complex systems. The research involved 1 model lecturer and 3 partner lecturers and 135 students who took part in the structure of plant development. The results of data analysis show the number of students who think complexly with MERs reasoning has increased by 48%, while the number of students who are able to model complex systems with good criteria has increased by 23%. Correlation test results between MERs reasoning performance with complex system modeling in general showed a positive relationship between 0.07 to 0.61. These evidences indicate that instructional learning has an effect on the progress of MERs reasoning performance as well as having an impact on the progress in achieving the ability of modeling complex systems, thus indicating instructional reasoning with MERs is effective for training systems thinking through modeling complex systems
Aktivitas dan Hasil Belajar Siswa pada Pembelajaran Matematika Menurut Teori Belajar Jerome Bruner untuk Materi Keliling dan Luas Lingkaran di Kelas VIII
Get PDFTujuan penelitian untuk mengetahui bagaimana aktivitas dan hasil belajar siswa kelas VIII MTs Al Falah Mahe Kabupaten Tabalong Tahun Pelajaran 2018/2019 dengan menerapkan teori belajar Jerome Bruner pada materi keliling dan luas lingkaran. Penelitian ini adalah penelitian deskriptif kuantitatif yang terdiri dari tiga kali pertemuan, dua kali pertemuan untuk kegiatan pembelajaran dan satu pertemuan untuk pelaksanaan tes evaluasi. Teknik pengumpulan data dalam penelitian ini menggunakan observasi dan tes hasil belajar. Teknik analisis data dengan menggunakan hitung rata-rata dan persentase. Hasil penelitian menunjukkan bahwa dengan menerapkan teori belajar Jerome Bruner dalam pembelajaran, aktivitas belajar siswa berada pada kualifikasi aktif dan hasil belajar siswa berada pada kualifikasi baik
MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA MENGGUNAKAN PENDEKATKAN PEMBELAJARAN SAINTIFIK DI MTS RABITATUS SA’ADAH TAHUN PELAJARAN 2019/2020
No full textAbstract: The learning process of teachers tends to use conventional models during the learning process takes place, students are only focused on listening to the delivery of lessons given by the teacher, whereas between one student and other students there is no visible communication relationship, because when learning activities take place students only listen to the teacher's explanation and note material presented by the teacher. This results in the low student learning outcomes. The purpose of this study is to improve the process and student learning outcomes of mathematics through a scientific approach to the circle material in class VIII students of MTs Rabitatus Sa’adah. This type of research used in this research is classroom action research which consists of two cycles, each cycle consisting of 4 stages including, 1) planning, 2) implementation, 3) observation, 4) reflection. This research instrument uses student and teacher observation sheets and question sheets. The results showed that in cycle 1 the classical completeness of students reached 65%. Then in the second cycle the classical completeness of students reaches 85%. Based on the results of data analysis and discussion, it can be concluded that through scientific learning can improve the activities and learning outcomes of students of class VIII MTs Rabitatus Saadah 2018/2019 academic year
PENINGKATAN KEMAMPUAN BERPIKIR MATEMATIS SISWA PADA MATERI BANGUN DATAR MELALUI MODEL PEMBELAJARAN PROYEK TERINTEGRASI STEM
No full textThe problem of students' difficulties on shapes material (triangles) becomes the background of the researcher to carry out research using a project learning model that is integrated with the STEM approach. The purpose of research is to improve students' mathematical thinking abilities. The research subjects were students of class VIII SMPN 4 Taliwang. The instruments used were observation sheets and tests. In STEM-learning projects, students are trained to solve mathematical problems through projects that are integrated with other fields of science. This research is a classroom action research conducted in 2 cycles. Each cycle is carried out with 4 stages, namely planning, action, observation, and reflection. The results showed that the mathematical ability of students in cycle 1 achieved an average score of 72 with a classical completeness of 70%, increasing in cycle 2 achieving an average score of 80 with a classical completeness of 83%. Based on these data it can be concluded that through the application of the project learning model integrated STEM can improve students' mathematical thinking abilities on flat build material in class VIII SMPN 4 Taliwan
Pemisahan Perak dari Limbah Fotorontgen dengan Teknik Membran Cair Berpendukung Menggunakan Pengemban Gabungan TBP dan D2EHPA
Get PDFThe photorontgen process produces waste that is harmful to the environment because it contains silver ions that are toxic to living organisms. The silver content in photorontgent waste is 2000 mg / L, while the permissible threshold value for silver in aquatic is 0.1 - 1.0 mg / L, so the disposal of photorontgent waste into the waters will be dangerous. However, silver metal has high economic value so that silver metal separation from x-ray waste is required, in addition to reducing the environmental burden due to silver metal pollution, it is also expected to reuse the silver metal economically. The technique of separation that can be used is a supported liquid membrane (Supported Liquid Membrane, SLM). This technique has the advantage that its separation process is relatively easy because the extraction and stripping process takes place in one stage, the carrying solution as extractant is more stable in the supporting membrane and the amount of extractant required is small. This research studies the effect of waste dilution factors on the effieciency separation of silver from photorontgen waste. Separation was carried out at the optimum SLM condition by using combined carrier compound TBP and D2EHPA with a ratio of 0.25: 0.75, total concentration of 1 M in kerosene and 0.1 M HNO3 as stripping phase. Sample waste was diluted by a factor dilution 25, 50, 75 and 100 times. Measurement of metal content before and after separation is done with AAS. The results showed that the waste dilution factor influenced the efficiency of silver trasnpor through SLM. Percent of silver separation was obtained 21.33% in waste with 100 times dilution
Pengembangan Lembar Kegiatan Siswa (LKS) Matematika Berbasis Pendekatan Scientific pada Materi Aritmatika Sosial bagi Siswa SMP
Get PDFThis research aims to produce a mathematics worksheet book based on a scientific approach in social arithmetic subject that is appropriate for use in seventh grade students of Junior High Schools. The development model was based on the ADDIE development model which included 5 stages namely: (1) analysis, (2) design, (3) development, (4) implementation, and (5) evaluation. The research subjects were seventh grade students of Citra Bakti Junior High School. The research instrument consisted of worksheet validation sheets, teacher response questionnaire, student response questionnaire, and observation sheet of learning activities. The quality and feasibility of the worksheet were based on the validity test by two validators and the practicality test was by 10 students of the test subject. Based on the results of data analysis, it was found that the results of the worksheet validity test obtained a validity score 3.21 or 80.2% and were on the validity criteria of "valid". So, it can be concluded that the worksheets that has been developed is valid and the results of the worksheet practicality test obtain an average practicality score of 10 students is 3.56 or 89%. This means that the worksheets developed is categorized into the high practicality criteria. Thus, the mathematics worksheet book based on a scientific approach in social arithmetic subject that is developed is feasible to be used for seventh grade students of Junior High School
Analisis Kemampuan Penalaran Matematis Siswa SMP dalam Menyelesaikan Soal Open-Ended pada Materi Teorema Pythagoras
Get PDFThe purpose of this research is to analyze the mathematical reasoning ability of students when solving open-ended problems. The research method used was descriptive qualitative with a case study approach. The subject was as many as 15 students of a grade VIII-2 of SMPN 6 Mandau. The technique of collecting data in this research was a written test. Data analysis techniques were scoring, presenting data, and describing and drawing conclusions from the data collected. The result of the study showed that the mathematical reasoning ability of the students was very determined when students solved problems, especially the open-ended problems. It could be demonstrated from the achievement of indicators of mathematical reasoning ability, drew a logical conclusion with the medium category, made analogy and generalization with very low categories as well as examining the validity of the statements with low categories. From the achievement of these indicators, it can be concluded that the average mathematical reasoning ability of students still is still categorized into low category. This is because students are still not accustomed of solving open-ended problems
Identifikasi Pemanfaatan Permainan Tradisional Sasak bagi Pendidikan Anak Usia Dini di Masa Pandemi Covid-19
Get PDFThis study aims to identify the types of traditional Sasak games that are suitable for early childhood and to find out the benefits of traditional Sasak games that are appropriate for early childhood development. The research method used was a survey. This research was conducted in the Ampenan District, Mataram City. This research data collection technique uses field notes, observations, and biographies. Analysis of the data in this study uses descriptive quantitative analysis. The results of this study indicate that there are identified types of games suitable for early childhood development during the Covid-19 pandemic. Traditional games are usually done with tools and without tools, sometimes also accompanied by singing. The benefits of traditional games are to develop aspects of child development, namely physical-motor, cognitive, language, creativity and social-emotional aspects
Penerapan pembelajaran model STAD (Student Team Achievement Division) untuk Meningkatkan Prestasi Belajar Matematika Siswa di SDN 39 Cakranegara
No full textThis study aims to improve students' mathematics learning achievement through the application of STAD model learning. This research method uses a classroom action research method with research subjects namely fifth grade students of SD Negeri 39 Cakranegara. The research instrument used observation and tests. The data analysis technique used in this research was qualitative and quantitative descriptive analysis. The results of this study indicate that the application of the STAD (Student Team Achievement Division) model of learning in building materials in class V SDN 39 Cakranegara is proven to improve student learning outcomes, this can be seen from the acquisition of class average scores from student test results at each stage The cycle is increasing, namely, the class average value in pre-cycle is 50, in cycle I is 60.70 and in cycle II is 75.35
Hubungan Metode Pembelajaran Diskusi Buzz Group dengan Aktivitas Belajar Siswa pada Mata Pelajaran IPS Terpadu
No full textThe purpose of this study was to determine the relationship between the buzz group discussion learning method with student learning activities in Integrated Social Studies subjects Class VIII at SMPN 4 Praya Barat Daya. The method used in this research is correlational with a questionnaire as the main method, observation and documentation as a complementary method. This study took a sample of class VIII students. B at SMPN 4 Praya Barat Daya, Central Lombok. The data analysis in this study used a quantitative approach using the Moment Product Correlation. Based on the results of data analysis, the correlation coefficient was found to be 0.405. Based on N = 14 with a significance level of 5% r table of 0.553. This means that rtabel is greater than rcount, namely 0.553> 0.405, so it can be concluded that there is a relationship between the Buzz Group discussion learning method and student learning activities in integrated social studies subjects Class VIII at SMPN 4 Praya Barat