Jurnal Gantang最新文献

{"title":"Analisis Kualitatif Kemampuan Komunikasi Matematis Siswa Yang Diberi Pembelajaran Matematika Realistik","authors":"Marzuki Ahmad, Dwi Putria Nasution","doi":"10.31629/JG.V3I2.471","DOIUrl":"https://doi.org/10.31629/JG.V3I2.471","url":null,"abstract":"Artikel ini bertujuan untuk mendeskripsikan kualitas kemampuan komunikasi matematis siswa yang diberi pembelajaran dengan pendekatan Pembelajaran Matematika Realistik (PMR) pada materi segi empat pokok bahasan persegi dan persegi panjang. Jenis penelitian adalah studi kasus deskriptif kualitatif. Subjek penelitian ini adalah siswa kelas VII(6) SMP Negeri 15 Medan yang berjumlah 40 orang, kemudian diangkat subjek yang dianalisis secara kualitatif ditinjau dari aspek indikator kemampuan (tinggi, sedang dan rendah), aspek kesalahan dan aspek jawaban kosong. Instrumen penelitian terdiri dari: Tes kemampuan komunikasi matematis dan lembar panduan wawancara. Teknik analisis data meliputi pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa kemampuan komunikasi matematis siswa 22,5% kategori tinggi, 37,5% kategori sedang dan 40% kategori rendah. Selanjutnya melalui analisis kualitatif diperoleh kesimpulan bahwa: 1) Siswa berkemampuan tinggi yaitu mampu dalam berkomunikasi secara matematis dengan baik; 2) Siswa berkemampuan sedang kurang mampu dalam bekomunikasi secara matematis; 3) Siswa berkemampuan rendah tidak mampu berkomunikasi secara matematis; 4) Kesalahan siswa terjadi dalam memahami permasalahan, menggunakan konsep-konsep dan langkah-langkah yang dibutuhkan untuk penyelesaian masalah; 5) Pada jawaban kosong siswa tidak mampu memahami langkah-langkah penyelesaian masalah, siswa kurang mampu dalam menggunakan dan menerapkan operasi hitung, siswa tidak mampu memahami konsep-konsep dalam penyelesaian masalah. \u0000Kata kunci: analisis kualitatif; komunikasi matematika; matematika realistik \u0000This article aims to describe the quality of mathematical communication skills of students who are given learning with Realistic Mathematics Education (RME) approach on rectangular material, square and rectangular subject matter. This type of research is a qualitative descriptive case study. The subjects of this study were students of class VII(6) of SMP Negeri 15 Medan totaling 40 people, then the subject was analyzed qualitatively from the aspect of capability indicators (high, medium and low), Error aspects and empty answer aspects. The research instrument consisted of mathematical communication skills test and interview guide sheet. Data analysis techniques included data collection, data reduction, data presentation and conclusion drawing. The results showed that students' mathematical communication skills were 22.5% in the high category, 37.5% in the medium category and 40% in the low category. Furthermore, through qualitative analysis, it was concluded that: 1) Students with high abilities are able to communicate mathematically well; 2) Students with average abilities are less capable in communicating mathematically; 3) Low-ability students are not able to communicate mathematically; 4) Student errors occur in understanding problems, using concepts and steps needed to solve problems; 5) In the empty answer","PeriodicalId":32098,"journal":{"name":"Jurnal Gantang","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43556587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Model Pembelajaran Aptitude Treatment Interaction Terhadap Kemampuan Komunikasi Matematika","authors":"Indah Lestari","doi":"10.31629/JG.V3I2.478","DOIUrl":"https://doi.org/10.31629/JG.V3I2.478","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui perbedaan kemampuan komunikasi matematika peserta didik yang memperoleh pembelajaran Aptitude Treatment Interaction dan ekspositori. Penelitian ini dilakukan pada mahasiswa program studi Pendidikan Matematika Universitas Indraprasta PGRI. Metode penelitian yang digunakan adalah eksperimen dengan jumlah sampel sebanyak 50 responden. Variabel bebas dalam penelitian ini adalah model pembelajaran yaitu Aptitude Treatment Interaction dan ekspositori, sedangkan variabel terikat adalah kemampuan komunikasi Matematika. Teknik pengolahan data dengan menggunakan uji beda 2 rata-rata. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran Aptitude Treatment Interaction mempengaruhi kemampuan komunikasi matematika. \u0000Kata kunci: Aptitude Treatment Interaction; komunikasi; matematika \u0000This research aims to know the differences of mathematical communication ability of learners who acquire Aptitude Treatment Interaction and exspository learning model. This research was conducted on student of Mathematics Education Study Programme at University of Indraprasta PGRI. The research method used was experiment with sample number of as many as 50 respondents. Independent variables in this study were models of learning, namely Aptitude Treatment Interaction and expository, while dependent variable is the ability of mathematical communication. Data processing techniques used was comparing the mean of two population. The results showed that the application of Aptitude Treatment Interaction learning model affects the ability of mathematical communication. \u0000Keywords: Aptitude Treatment Interaction; communication; mathematics","PeriodicalId":32098,"journal":{"name":"Jurnal Gantang","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47070250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hasil Belajar Siswa Pada Materi Peluang Melalui Model Connected Mathematics Project Di Kelas VIII","authors":"Desty Rupalestari, Yusuf Hartono, Hapizah Hapizah","doi":"10.31629/JG.V3I2.465","DOIUrl":"https://doi.org/10.31629/JG.V3I2.465","url":null,"abstract":"Penelitian ini merupakan penelitian deskriptif yang bertujuan untuk mengetahui hasil belajar siswa pada materi peluang setelah diterapkan model pembelajaran Connected Mathematics Project (CMP) di kelas VIII. Subjek penelitian adalah siswa kelas VIII.1 SMPN 1 Palembang yang terdiri dari 29 orang. Teknik pengumpulan data yang digunakan, yaitu tes tertulis yang terdiri dari tiga soal uraian dan wawancara sebagai pendukung data tes. Hasil penelitian menunjukkan bahwa hasil belajar siswa pada materi peluang secara keseluruhan dikategorikan baik dengan rata - rata adalah 76,09, dengan rincian siswa terkategori sangat baik sebanyak 20,69%, terkategori baik sebanyak 44,83%, terkategori cukup sebanyak 24,14%, dan terkategori kurang sebanyak 10,34%. Siswa yang terkategori sangat baik dan baik secara keseluruhan mampu menentukan peluang kejadian dengan mencari banyak ruang sampel dan kejadian suatu percobaan dengan baik. Sedangkan siswa yang terkategori cukup dan kurang masih belum mampu menentukan peluang kejadian yang disebabkan oleh kesalahan dalam menentukan banyak ruang sampel dan kejadian suatu percobaan. \u0000Kata kunci: hasil belajar; CMP; peluang \u0000This research is a descriptive research that aims to find out student learning outcomes in material of probability after applying model of learning namely Connected Mathematics Project (CMP) in class VIII. The subjects of this research were students of class VIII.1 from SMPN 1 Palembang which consists of 29 students. Technique of collecting data that used on this research were written test which consist of three essay question and interview as a supporter of test data. The research results shows that student learning outcomes in the material of probability overall are categorized good with the average is 76.09, with categorized of excellent students as much as 20.69%, good categorized as much as 44.83%, enough categorized as much as 24.14% , and the low categorized as much as 10.34%. Students who are categorized excellent and good, overall are able to determine the probability of the event by finding sample space and events of an experiment well. While students who are categorized enough and low still have not been able to determine the probability of events caused by errors in determining the sample space and the event of an experiment. \u0000Keywords: learning outcomes; CMP; probability","PeriodicalId":32098,"journal":{"name":"Jurnal Gantang","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42256555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Program Dinamis Pada Penentuan Rute Kendaraan Dengan Time Windows","authors":"Mirta Fera, Irwan Endrayanto","doi":"10.31629/jg.v3i2.511","DOIUrl":"https://doi.org/10.31629/jg.v3i2.511","url":null,"abstract":"Penentuan rute armada merupakan salah satu permasalahan optimisasi kombinatorik yang memiliki pengaruh pada distribusi barang. Pengiriman barang cepat busuk (perishable good) seperti produk darah, dengan karakteristik jarak tempuh yang pendek memungkinkan untuk dilakukan dengan satu kendaraan. Terdapat kendala time windows pada pelanggan dan depot yang membatasi pengiriman. Masalah penentuan rute dalam penelitian ini dipandang sebagai single vehicle routing problem dengan time windows. Penelitian ini bertujuan untuk mendeskripsikan algoritma yang ditulis berdasarkan program dinamis untuk masalah penentuan rute kendaraan dengan time windows. Pada algoritma diterapkan tes yang bertujuan meningkatkan performa algoritma. Pada bagian akhir diberikan contoh penyelesaian masalah penentuan rute kendaraan dengan time windows menggunakan algoritma. \u0000Kata kunci: penentuan rute kendaraan; program dinamis; algoritma eksak \u0000Routing problem is kind of combinatoric optimization problem that has an influence on the distribution of goods. Delivery of perishable good such as blood products with short travel characteristics makes it possible to do with one vehicle. There are time-windows constraints on customer and depots that limit delivery. This research aims to describe algorithms written based on dynamic programs for the problem of determining vehicle routes with time windows. In the algorithm applied a test that aims to improve the performance of the algorithm. In the end, given an example of solving the problem of determining a vehicle route with time windows using an algorithm. \u0000Keywords: vehicle routing problem; dynamic programming; exact algorithm \u0000 \u0000","PeriodicalId":32098,"journal":{"name":"Jurnal Gantang","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46073841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Pendekatan Pendidikan Matematika Realistik Indonesia (PMRI) Terhadap Keterampilan Berpikir Kritis Siswa SD","authors":"Arrum Meirisa, Ronal Rifandi, Masniladevi Masniladevi","doi":"10.31629/JG.V3I2.508","DOIUrl":"https://doi.org/10.31629/JG.V3I2.508","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui apakah terdapat pengaruh pendekatan PMRI terhadap kemampuan berpikir kritis siswa dan bagaimana proses belajar menggunakan pendekatan PMRI terhadap kemampuan berpikir kritis siswa di kelas V SD Negeri 44 Kalumbuk Kota Padang. Jenis penelitian ini adalah Eksperimen. Desain yang digunakan adalah Quasi Experimental dan rancangannya Posttest Only Control Design. Subjek penelitian ini adalah siswa kelas V SD Negeri 44 Kalumbuk Kota Padang, yang terdiri dari dua kelas yaitu kelas VA sebagai kelas kontrol dan kelas VB sebagai kelas eksperimen. Data yang diperoleh dengan tes akhir dianalisis dengan menggunakan uji- t. Hasil penelitian dengan menggunakan uji normalitas dan homogenitas terhadap kedua data berdistribusi normal dan homogen. Selanjutnya dilakukan uji hipotesis dengan uji-t menunjukkan thitung= 3,04 dan ttabel= 1,673 dengan df= 55 dan taraf signifikan 5%. Berdasarkan pengujian thitung > ttabel maka H0 ditolak dan H1 diterima dengan kesimpulan penggunaan PMRI memberikan pengaruh terhadap keterampilan berpikir kritis siswa di kelas V SD Negeri 44 Kalumbuk Kota Padang tahun ajaran 2017/2018. \u0000Kata kunci: PMRI; berpikir kritis \u0000This study aimed to determine whether there is an influence of the PMRI approach on students’ critical thinking skills and how the learning process using PMRI approach in grade V of SDN 44 Kalumbuk Padang is. This study was a quasi-experimental research with Post-test Only Control Design. The subject in this study were students of VA and VB of SDN 44 Kalumbuk Padang in the academic year of 2017/2018. The data collected through post-test was analyzed with t-test. The t-test result shows that tcount = 3,04 and ttable= 1,673 with df= 55 and alpha 5 %. Based on the result, it is concluded that the PMRI approach gives a positive influence to the students’ critical thinking skills in grade V of SDN 44 Kalumbuk padang in academic year 2017/2018. \u0000Keywords: PMRI; critical thinking","PeriodicalId":32098,"journal":{"name":"Jurnal Gantang","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43686666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}