scholarly journals KETERAMPILAN KOMUNIKASI MATEMATIS SISWA PADA MATERI BANGUN RUANG SISI DATAR DITINJAU DARI SELF EFFICACY

2021 ◽  
Vol 5 (1) ◽  
pp. 62-73
Author(s):  
Nur Asri Melawati ◽  
Erdawati Nurdin

Mathematical communication skills are one of the competencies that students must have in the 21st century.  This study aims to anylize and describe students’ mathematical communication skills in terms of self efficacy on the polyhedrons material. The research used descriptive qualitative methods. The subjects were 9 grade students of An nashichah private junior high school selected purposively.  Data was collected through online test, questionnaires and interviews using WhatsApp. The data analyzed through 3 stages, namely data reduction, data presentation and conclusions. The results showed that the students’ mathematical communication skills were low. When viewed from students’ self efficacy, high self efficacy students have high mathematical communication. Meanwhile, low and moderate self efficacy students have low mathematical communication skills. The use of Whatsapp media is not able to support students mathematical communication skill and self efficacy. The tachers need to design learning media to help students improve their mathematical communication skills and self efiicacy.

2017 ◽  
Vol 4 (1) ◽  
pp. 32
Author(s):  
Fitratul Wulan Fatmasuci

Tujuan penelitian ini adalah menghasilkan perangkat pembelajaran matematika berbasis masalah yang berorientasi pada kemampuan komunikasi dan prestasi belajar matematika yang mempunyai kualitas baik yang terdiri atas rencana pelakanaan pembelajaran (RPP), lembar kerja siswa (LKS), tes kemampuan komunikasi, dan tes prestasi belajar. Penelitian ini adalah penelitian dan pengembangan. Prosedur yang diadaptasi tersebut meliputi tiga tahap yaitu studi pendahuluan, desain produk, dan pengembangan produk. Hasil penelitian menunjukkan bahwa perangkat pembelajaran matematika yang dikembangkan masing-masing memenuhi kriteria valid dengan kategori “baik”. Perangkat pembelajaran yang dikembangkan praktis dengan hasil penilaian kepraktisan oleh guru pada kategori “baik”, kategori “sangat baik” berdasarkan respon siswa dan kategori “sangat baik” berdasarkan hasil observasi keterlaksanaan pembelajaran. Perangkat pembelajaran yang dikembangkan efektif berdasarkan ketuntasan belajar siswa. Persentase siswa yang tuntas pada tes kemampuan komunikasi matematika mencapai 84,38% dan pada tes prestasi belajar mencapai 81,25%.Kata Kunci: perangkat pembelajaran, pembelajaran berbasis masalah, kemampuan komunikasi matematika, prestasi belajar Developing a Problem-Based Learning Instructional Kit Oriented to Junior High School of Mathematical Communication Skills and Learning Achievement AbstractThe research aims to produce a good quality problem-based learning mathematics instructional kit oriented to mathematical communication skills and learning achievement consisting of lesson plans, student worksheets, communication skill test, and learning achievement test. This study was a research and development. The procedure of this model consisted of three steps are define, design and develop. The result shows that the mathematics instructional kit is valid with a “good” category. Learning kit that has been developed was practically shown by results of practicality votes by teachers in category “good”, “very good” category based on student’s responses and “very good” category based on the observation of learning implementation. Learning kit that has been developed was effective based on student’s learning mastery. The percentage of students who achieved the mastery level in communication test is 84.38% and in learning achievement test is 81.25%.Keywords: instructional kits, problem-based learning, mathematical communication skills, learning achievement


2018 ◽  
Vol 1 (3) ◽  
pp. 279
Author(s):  
Gilang Kian Ishaya ◽  
Rosalina Rolina ◽  
Desy Tri Damayanti

This research is motivated by the low mathematical communication skills of junior high school students in the city of Bandung Regency. This study aims to determine the comparison of the mathematical communication skills of junior high school students in the city of Bandung regency between the learning usingmodels Think Talk Write. The method used in this study is a quasi-experimental method with a pretest-posttest control group design involving two groups and randomly selected classes, at the beginning and end of the study the two classes were given a test. The population in this study were junior high school students in the city of Bandung Regency, while the sample consisted of two randomly selected classes. Obtained class VII A (experimental class) given themodel Think Talk Write and class VII B (control class) is given a scientific approach. The instrument used was a 5-item mathematical communication ability description test, then theability scores mathematical communication students'were analyzed with descriptive and inferential statistics using the help of SPSS 21 software. Based on the results of the study, it was concluded that there were differences in the achievement of students' mathematical communication skills using models Think Talk Write with students who used a scientific approach. 


2018 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Hadijah Hadijah

The purpose of this study was to analyze and explore the effectiveness of constructivism approaches in improving mathematical communication skills of junior high school students in the city of Paser. The experimental quasi method was used in this study to test the hypothesis of the study. The sample of the study at three junior high schools in Paser City, representing high, medium and low school students.. The instruments used in this study were pre-post test, pre-post questionnaires, and observation. The data were analyzed using independent sample t-tests, paired sample tests, annova tests, and descriptive analysis. The findings of pre-post test and pre-post questionnaire analysis using t-test showed that there were significant differences in group mathematical communication skills using constructivism approach compared to groups using conventional approaches at all achievement levels of high school students (high, simple and low). Based on the observation, it is found that high achievement school students have good mathematical communication skills in mathematical communication, these are identified in many aspects and observation indicators achieved by students during learning.


2018 ◽  
Vol 1 (6) ◽  
pp. 1113
Author(s):  
Siti Nurlaila ◽  
Ratna Sariningsih ◽  
Rippi Maya

This research is to find out the mathematical communication skills of VIII junior high school students about building a flat side space. This research method is a qualitative descriptive study. The subject of this research is 18 students in one junior high school in Bandung regency. The test instrument used is a description form. The indicator used in this study there are 5 indicators of mathematical communication ability, namely expressing ideas, situations and relations with images, expressing mathematical situations or everyday events into mathematical models, explaining and making questions of mathematical problems, low indicators only obtain an average percentage averaged 12%, based on the results of calculations using the Microsoft Exel application the overall student communication skills of these five indicators are still low below 50% which is only 44%.


2021 ◽  
Vol 6 (2) ◽  
pp. 207-218
Author(s):  
Linda Astriani ◽  
Dewi Setiyaningsih ◽  
Misriandi Misriandi ◽  
Anggi Yuliani

Mathematical communication skills are important, and education should facilitate students to improve their mathematical communication skills. The purpose of this study was to develop e-learning based on Moodle to improve students' mathematical communication and self-efficacy and student self-efficacy and describe how to students’ mathematic communication and student self-efficacy. This study used mixed-method research. The population in this study were Year 5 students at a private primary school. Data collection techniques used in this study are observation and tests. The implementation with Moodle was effective to the students’ mathematic communication and self-efficacy student. Overall, the students’ mathematical communication skills and self-efficacy of students using E-learning based Moodle is better than those using conventional learning. Also, self-efficacy positively affects students' communication skills with a very strong correlation coefficient, meaning that the higher students' self-efficacy, the higher students' communication skills.


2018 ◽  
Vol 1 (4) ◽  
pp. 599
Author(s):  
Sigit Mulqiyono ◽  
Debby Yuniar ◽  
Ika Wahyu Anita

This preliminary study aims to analyze the mastery of mathematical communication skills of class VIII students in junior high school in Bandung regency of triangular and rectangular flat building material. In this preliminary study, the research method used is a qualitative descriptive method with 5 students of class VIII as a sample and research instruments used are 5 items about the instrument of mathematical communication ability. Based on the observations made on 5 students it is found that mastery of mathematical communication skills owned by grade VIII students in one junior high school in Bandung Regency is still relatively low.


2019 ◽  
Vol 2 (2) ◽  
pp. 65
Author(s):  
Nur Afriani Agustin ◽  
Mirayanti Mirayanti ◽  
Luvy Sylviana Zanthy

This study aims to determine the level of communication skills and mathematical creative thinking of junior high school students through tests of straight-line equation questions, and analyze the difficulties of students in solving problems in the matter of straight-line equations. The population in the study were all eighth grade students of Pasundan 1 Junior High School 1 Cimahi with a sample of 9 students in class VIII I who were taken using the proportionate stratified random sampling technique that is by taking samples from each strata proportionally randomly with the provisions of each of the 3 high-ability students , 3 students with moderate ability and 3 low-ability students. The research data was collected through a test of mathematical communication skills based on the indicators of 4 essay questions. The results showed students' mathematical communication skills of 34.4% included in the less category, while for creative thinking ability was 41% including sufficient categories. Based on the answer analysis students have been able to identify elements that are known and asked and stated them in mathematical symbols, able to identify the links between elements / data that are known and asked, only students have not been able to complete mathematical models and determine relevant solutions. Based on the results of the average questionnaire shows that students' self-confidence in mathematics learning can be categorized as being. These results are directly proportional to the results of tests of low mathematical communication skills and creative thinking abilities that are categorized sufficient.


2018 ◽  
Vol 1 (4) ◽  
pp. 525
Author(s):  
Mega Sugondo Putri ◽  
Wahyu Hidayat ◽  
Rippi Maya

This study aims to analyze in depth the influence of mathematical disposition on mathematical communication ability of junior high school students. The method in this research using a correlational method with quantitative approach. The population of this study is all junior high school students in one of the SMP Negeri in West Bandung amounted to 34 students. Instruments in this study using the test of mathematical communication skills as much as 5 items and the scale of mathematical disposition as much as 23 points of statement scale. The result of this research is student's mathematical disposition influenced by 76,5% then its rest influenced by other factors outside mathematical disposition equal to 23,5%.


2020 ◽  
Vol 4 (1) ◽  
pp. 113
Author(s):  
Edsel Yubil Pantow ◽  
Debora Suryani Sitinjak ◽  
Kurnia Putri Sepdikasari Dirgantoro

<p>Mathematical communication skills are one of the standard abilities in mathematics learning that students must have. In fact, it was found that the grade 10 students at one of the senior high schools in Kupang were still lacking in communicating both orally and in writing in mathematics learning. They lacked the ability to describe mathematical ideas using written symbols and notations and also lacked the ability to make class presentations using mathematical language. The purpose of this study was to improve students' mathematical communication skills, both written and oral, by applying the Think-Talk-Write method. The method used in this research was classroom action research with the Kemmis and McTaggart model in three cycles. The research instruments used were observation sheets, questionnaires, rubric sheets for oral mathematic communication skills, written mathematical communication skills test sheets, and reflection journals. Based on the results of the analysis, the application of the Think-Talk-Write method can improve mathematical communication ability of grade 10 students at a  senior high school in Kupang. In mathematical communication skills written algebraically or graphically using mathematical terms, the appropriate notation and formula symbols increased by 4.76%. Written communication skill with the arrangement of arguments and generalizations increased by 28.57%. Similarly, the ability to convey mathematical thinking using mathematical language increased by 23.81%. The application of the Think-Talk-Write method can improve students' mathematical communication skills with stages starting from the explanation of the model and learning objectives, the distribution of question worksheets and materials, the think stage, the talk stage, and the write stage.</p><p><strong>BAHASA INDONESIA ABSTRACT: </strong>Kemampuan komunikasi matematis merupakan salah satu standar kemampuan dalam pembelajaran matematika yang harus dimiliki siswa. Pada kenyataannya ditemukan bahwa siswa kelas X pada salah satu sekolah menengah atas Kupang masih kurang dalam berkomunikasi baik secara lisan maupun tulisan dalam pembelajaran matematika. Tujuan dari penelitian ini adalah untuk meningkatkan kemampuan komunikasi matematis siswa baik secara tulisan maupun lisan dengan menerapkan metode Think-Talk-Write. Metode penelitian yang digunakan adalah penelitian tindakan kelas dengan model Kemmis dan Mc. Taggart dalam tiga siklus. Instrumen penelitian yang digunakan dalam penelitian ini yaitu lembar observasi, lembar angket, lembar rubrik kemampuan komunikasi matematis lisan, lembar tes kemampuan komunikasi matematis tertulis, dan jurnal refleksi. Berdasarkan hasil analisis, kemampuan komunikasi matematis tertulis secara aljabar atau grafik yang menggunakan istilah matematika, simbol notasi dan formula baku yang sesuai mengalami peningkatan sebesar 4,76%. Pada kemampuan komunikasi tertulis dengan susunan argumen dan generalisasi mengalami peningkatan sebesar 28,57%. Begitu juga pada kemampuan menyampaikan pemikiran matematis menggunakan bahasa matematis mengalami peningkatan sebesar 23,81%. Sehingga dapat disimpulkan bahwa penerapan metode Think-Talk-Write dapat meningkatkan kemampuan komunikasi matematis siswa dengan tahapan mulai dari penjelasan model dan tujuan pembelajaran, pembagian lembar kerja soal dan materi, tahap Think, tahap Talk, dan tahap Write.</p>


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