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Journal of Mathematics Education and Science
Published by Universitas Nahdlatul Ulama Sunan Giri Bojonegoro
ISSN : 26211203     EISSN : 26211211     DOI : https://doi.org/10.32665/james
Core Subject : Education,
Education Mathematics
Journal of Mathematics Education and Science (JaMES) is a mathematical journal published biannually (April & October) by the Mathematics Educations Department, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Nahdlatul Ulama Sunan Giri Bojonegoro. Journal includes research papers, literature studies, analysis, and problem-solving in Mathematics Education or Mathematical Sciences (Algebra, Analysis, Statistics, Computing and Applied).
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 7 Documents
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ANALISIS KESALAHAN SISWA DALAM PENYELESAIAN SOAL CERITA DITINJAU DARI TIPE KEPRIBADIAN KEIRSEY Harvina Nur Zaeny; Sujiran; Dian Ratna Puspananda
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (380.075 KB) | DOI: 10.32665/james.v4i2.212

Abstract

This study has the aim of describing the types and factors of student errors in solving Social Arithmetic story problems in terms of Keirsey's personality type based on Polya's error analysis. This research includes qualitative descriptive research. The research instrument was questioned for classifying Keirsey's personality types, questions about Social Arithmetic stories, and interview guidelines. The technical analysis of the data carried out includes data reduction, data presentation, and drawing conclusions. The results showed that misunderstandings of seven problems were made by Artisan, Rational, and Idealist subjects. Artisan and rational subjects did not write what is known and asked in the problem completely. In the Idealist subject, write down what is asked in the question, but it is not quite right. Planning errors were made by the four personality type subjects, where they were not able to properly arrange the completion steps. Errors in carrying out the plan were made by the four personality type subjects, where the Guardian subject did not complete the completion step and miscalculated. Artisan and Idealist subjects did not write down the solution formula. At the same time, the Rational subject did not write conclusions and formulas in several steps of completion. Re-checking errors were carried out by the four personality type subjects, where the Guardian, Artisan, Rational, and Idealist subjects got the final result but were wrong. Rational subjects also do not perform calculations when checking again. On the other hand, the Idealist subject does not re-examine the solution obtained. Abstrak Penelitian ini memiliki tujuan yaitu mendeskripsikan jenis dan faktor kesalahan siswa dalam menyelesaikan soal cerita Aritmatika Sosial ditinjau dari tipe kepribadian Keirsey berdasarkan analisis kesalahan Polya. Penelitian1ini termasuk penelitian deskriptif kualitatif. Instrumen2penelitian berupa angket penggolongan tipe kepribadian3Keirsey, soal cerita aritmatika sosial dan pedoman wawancara. Teknis analisis2data mencakup pengurangan data, penyajian data dan penarikan kesimpulan. Hasil penelitian menunjukkan8bahwa kesalahan memahami7masalah dilakukan oleh subjek Artisan, Rational dan Idealist. Pada subjek Artisan dan rational tidak lengkap saat menuliskan apa yang diketahui dan ditanyakan dalam soal. Sedangkan subjek Idealist menuliskan apa yang ditanyakan dalam soal akan tetapi kurang tepat. Kesalahan menyusun rencana dilakukan keempat subjek tipe kepribadian, dimana mereka tidak mampu menyusun langkah penyelesaian dengan tepat. Kesalahan melaksanakan rencana dilakukan keempat subjek tipe kepribadian, dimana subjek Guardian tidak menyelesaikan langkah penyelesaian dan salah dalam perhitungan. Subjek Artisan dan Idealist tidak menuliskan rumus penyelesaian. Sedangkan subjek Rational tidak menuliskan kesimpulan dan rumus pada beberapa langkah penyelesaian. Kesalahan memeriksa kembali dilakukan keempat subjek tipe kepribadian, dimana subjek Guardian, Artisan, Rational dan Idealist memperoleh hasil akhir akan tetapi salah. Subjek Rational pula tidak melakukan perhitungan disaat memeriksa kembali. Sebaliknya subjek Idealist tidak memeriksa kembali penyelesaian yang diperoleh.
PENGELOMPOKAN PRODUKSI PERKEBUNAN MENURUT KABUPATEN/KOTA JAWA TENGAH TAHUN 2020 MENGGUNAKAN HIERARCHICAL CLUSTERING Nur Mutmainnah Djafar; Latifah Nur Wijayanti; Ajeng Retno Elprilita; Edy Widodo
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.171 KB) | DOI: 10.32665/james.v4i2.230

Abstract

Indonesia is a country with arable land and empowered to do things; one of them is plantation. One of the provinces in Indonesia having a wealth of natural resources is Central Java. According to Dinas Penanaman Modal dan Pelayanan Terpadu Satu Pintu Provinsi Jawa Tengah, Central Java Province has great potential of the land. Based on BPS data, Central Java is in the seventh position in the results plantation production in 2020. Central Java Province also has the highest exported agriculture that won Abdi Tani Award in 2021. Researchers conducted using hierarchical clustering analysis method to know district/city group and productivity based on the results of plantation production. By the grouping results based on a coconut plantation, rubber tree, coffee, cocoa, sugar cane, tobacco, and pepper production, there are three clusters with profiling results are the first cluster has 30 districts/cities with high category plantation production, the second cluster has one district with middle category plantation production, and the third cluster has four districts/cities with low category plantation production. Abstrak Indonesia adalah negara yang memiliki tanah subur sehingga dapat diberdayakan untuk berbagai hal, salah satunya adalah perkebunan. Salah satu provinsi di Indonesia yang memiliki kekayaan sumber daya alam berupa tanah subur adalah Provinsi Jawa Tengah. Menurut Dinas Penanaman Modal dan Pelayanan Terpadu Satu Pintu Provinsi Jawa Tengah, Jawa Tengah memiliki potensi usaha dari hasil tanah yang sangat besar. Berdasarkan data BPS, Jawa Tengah berada di posisi ke-7 dalam hasil produksi perkebunan tahun 2020. Jawa Tengah juga merupakan provinsi dengan nilai ekspor pertanian tertinggi yang meraih penghargaan Abdi Bakti Tani 2021. Peneliti melakukan analisis dengan menggunakan metode hierarchical clustering, dengan tujuan untuk mengetahui kelompok-kelompok daerah serta produktivitasnya berdasarkan hasil produksi perkebunan. Dari hasil clustering dan profilisasi berdasarkan hasil produksi kelapa, karet, kopi, kakao, tebu, tembakau, dan lada diperoleh cluster 1 memiliki 30 kabupaten/kota dengan kategori hasil produksi perkebunan tinggi, cluster 2 memiliki 1 kabupaten dengan kategori hasil produksi perkebunan sedang, dan cluster 3 memiliki 4 kabupaten/kota dengan kategori hasil produksi perkebunan rendah.
PERAMALAN INFLASI DI INDONESIA MENGGUNAKAN METODE AUTOREGRESSIVE MOVING AVERAGE (ARMA) Cheryl Ayu Melyani; Atsila Nurtsabita; Ghaitsa Zahira Shafa; Edy Widodo
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.789 KB) | DOI: 10.32665/james.v4i2.231

Abstract

A good inflation rate for a country is an inflation rate that has a low and stable value so that able to realize fast and controlled economic growth. Forecasting can be one of the steps that can provide an overview of the value of inflation in Indonesia for the government or related agencies to formulate and maintain inflation stability in Indonesia. In this study, a forecasting analysis was carried out to determine the prediction of inflation in Indonesia in 2021 using the Autoregressive Moving Average (ARMA) method. From the results of the research that has been done, the best model to predict this case is using the ARMA model (3,0,0) because it produces the smallest AIC value of 0.2373 and the smallest RMSE of 7.81. From this model, the results of forecasting inflation rates for the months of May to December 2021 are also obtained with a range of 0.1% to 0.3%. The graphic pattern of the predicted results follows the actual data line pattern, which means that this model is good to use. Abstrak Tingkat inflasi yang baik bagi suatu negara adalah tingkat inflasi yang memiliki nilai yang rendah dan stabil, sehinga mampu mewujudkan pertumbuhan ekonomi yang cepat dan terkendali. Peramalan dapat menjadi salah satu langkah yang dapat memberikan gambaran nilai inflasi di Indonesia bagi pemerintah atau badan yang terkait untuk menyusun dan mempertahankan kestabilan inflasi di Indonesia. Dalam penelitian ini, dilakukan analisis peramalan untuk mengetahui prediksi angka inflasi di Indonesia tahun 2021 menggunakan metode Autoregresif Moving Average (ARMA). Dari hasil penelitian yang telah dilakukan, model terbaik untuk meramalkan kasus ini yaitu menggunakan model ARMA (3,0,0) karena menghasilkan nilai AIC paling kecil yaitu 0.2373 dan RMSE terkecil sebesar 7.81. Dari model tersebut juga didapatkan hasil peramalan angka inflasi untuk bulan Mei hingga Desember 2021 dengan kisaran 0.1% hingga 0.3%. Pola grafik dari hasil prediksi mengikuti pola garis data aktual yang berarti bahwa model ini baik untuk digunakan.
KLASTERISASI FAKTOR-FAKTOR KEMISKINAN DI PROVINSI JAWA BARAT MENGGUNAKAN K-MEDOIDS CLUSTERING Pradini Nurul Safitri; Rafika Aristawidya; Shafa Bunga Faradilla
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.807 KB) | DOI: 10.32665/james.v4i2.242

Abstract

Difficulty in meeting basic food and non-food need measured on the expenditure side is referred to as poverty. Thus, the purpose of this study is to find out the poverty group by district/city in West Java Province. This method used is the K-Medoids Clustering algorithm because K-Medoids can handle data that is very sensitive to outliers. The results of the study showed that three groups were obtained, with group one having as many as eight regions, group two having members as many as 15 regions, and group three having members as many as four regions. Abstrak Kesulitan untuk memenuhi kebutuhan dasar makanan dan selain makanan diukur berdasarkan sisi pengeluaran disebut sebagai kemiskinan. Sehingga, tujuan penelitian ini yaitu mengetahui kelompok kemiskinan menurut kabupaten/kota di Provinsi Jawa Barat. Adapun metode yang digunakan yaitu algoritma K-Medoids Clustering, dikarenakan K-Medoids mampu mengatasi data yang sangat sensitif terhadap outlier. Hasil dari penelitian menunjukan bahwa diperoleh tiga kelompok, dengan kelompok satu memiliki anggota sebanyak delapan wilayah, kelompok dua memiliki anggota sebanyak yaitu 15 wilayah, dan kelompok tiga memiliki anggota sebanyak empat wilayah.
PREDIKSI KUNJUNGAN WISATAWAN MANCANEGARA KE DKI JAKARTA PADA MASA COVID-19 MENGGUNAKAN METODE DES HOLT Wanda Listathea Putri; Fatihatun Naja; Takayuki Pratama; Edy Widodo
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.937 KB) | DOI: 10.32665/james.v4i2.243

Abstract

DKI Jakarta is a province with a high level of tourist mobility because it is a metropolitan city which is certainly the entry point for future foreign tourists. Since the Covid-19 virus outbreak entered Indonesia, the central and regional governments have cooperated in enacting several policies to overcome the spread of the virus in Indonesia, one of which is by closing tourist attractions. This study aims to predict the number of visits/arrivals of foreign tourists to DKI Jakarta during the Covid-19 period using the Double Exponential Smoothing (DES) Holt method. Holt's DES method with level smoothing parameter α = 0.7 and trend smoothing β = 0 produces MAPE values ​​of 3.474% and RMSE of 0.449 in predicting/forecasting the number of visits. Forecasting results for the next 5 periods show that the number of foreign tourist visits to DKI Jakarta Province for the months of August to December 2021 will continue to decline with the number of visits in August 2021 as many as 6,898 visits, in September as many as 6,735 visits, in October as many as 6,576 visits, and in November and December 2021 as many as 6,421 and 6,270 visits respectively. The strategy carried out by the Ministry of Tourism and Creative Economy to save tourism in Indonesia is divided into 3 phases, namely Emergency Response, Recovery, and Normalization. In addition, 3 strategies are also applied in accelerating tourism recovery, namely Innovation, Adaptation, and Collaboration. Abstrak DKI Jakarta menjadi provinsi dengan tingkat mobilitas wisatawan yang tinggi karena merupakan kota metropolitan yang tentunya menjadi pintu masuk dari wisatawan mancanegara (wisman) yang akan datang. Sejak pandemi Covid-19 masuk ke Indonesia, pemerintah pusat dan daerah bekerja sama dalam mengatasi penyebaran virus di Indonesia melalui beberapa kebijakan yang dibuat, salah satunya adalah dengan menutup tempat wisata. Penelitian ini bertujuan untuk memprediksi jumlah kunjungan/kedatangan wisman ke Provinsi DKI Jakarta pada masa Covid-19 menggunakan metode Double Exponential Smoothing (DES) Holt. Metode DES Holt dengan parameter pemulusan level yaitu α = 0,7 dan pemulusan trend yaitu β = 0 menghasilkan nilai MAPE sebesar 3,474% dan RMSE sebesar 0,449 dalam memprediksi/meramalkan jumlah kunjungan. Hasil peramalan untuk 5 periode ke depan menunjukkan bahwa jumlah kunjungan wisman ke Provinsi DKI Jakarta untuk bulan Agustus hingga Desember 2021 akan terus mengalami penurunan dengan jumlah kunjungan pada bulan Agustus 2021 sebanyak 6.898 kunjungan, September sebanyak 6.735 kunjungan, Oktober sebanyak 6.576 kunjungan, serta bulan November dan Desember 2021 adalah sebanyak 6.421 dan 6.270 kunjungan. Strategi yang dilakukan oleh Kemenparekraf untuk menyelamatkan pariwisata di Indonesia terbagi menjadi 3 fase yaitu Tanggap Darurat, Pemulihan, dan Normalisasi. Selain itu, juga diterapkan 3 strategi untuk mempercepat pemulihan pariwisata yaitu Inovasi, Adaptasi, dan Kolaborasi.
ANALISIS BERPIKIR KRITIS PADA MASA PANDEMI (COVID-19) DITINJAU DARI GENDER Astrid Chandra Sari; Nurul Ilmiyah; Intan Yuli Lestari
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (221.502 KB) | DOI: 10.32665/james.v4i2.246

Abstract

Knowing how to think critically of fellow students in solving math problems on the circle material and knowing how to think critically on male students and students during the pandemic is the goal of this research. This study used the descriptive qualitative method. The research sample consisted of 6 students consisting of 1 male student with high scores, one male student with moderate grades, one male student with low scores and one female student with high scores, one female student with moderate scores, one female student with low scores. They were then followed by interviews to determine the critical thinking skills of each subject. Including (1) Focus, (2) Reason, (3) Inference, (4) Situation, (5) Clarity, and (6) Overview, which can be abbreviated as (FRISCO).  Based this study shows that male students and female students as a whole are included in the category of students with high critical thinking skills because more than 70% of students meet the criteria for high critical thinking skills.  However, male students have higher critical thinking skills than female students. This is evidenced by the fulfillment of all indicators of critical thinking by male students, while female students are only in Clarity, which means that the Overview indicator has not been fulfilled. Abstrak Mengetahui bagaimana kemampuan berpikir kritis matematis peserta didik dalam menyelesaikan masalah matematika pada materi lingkaran dan mengetahui bagaimana perbedaan kemampuan berpikir kritis matematis peserta didik laki-laki dan peserta didik perempuan pada masa pandemi merupakan tujuan dari penelitian ini. Penelitian ini menggunakan metode deskriptif kualitatif. Sampel penelitian berjumlah 6 peserta didik yang terdiri dari 1 peserta didik laki-laki dengan nilai tinggi, 1 peserta didik laki-laki dengan nilai sedang, 1 peserta didik laki-laki dengan nilai rendah dan 1 peserta didik perempuan dengan nilai tinggi, 1 peserta didik perempuan dengan nilai sedang, 1 peserta didik perempuan dengan nilai rendah. Indikator berpikir kritis yang digunakan dalam penelitian adalan indikator  (1) Focus, (2) Reason, (3) Inference, (4) Situation, (5) Clarity, and (6) Overview yang biasanya disingkat dengan istilah (FRISCO). Hasil penelitian menunjukkan bahwa peserta didik laki-laki dan peserta didik perempuan secara keseluruhan termasuk dalam kategori peserta didik dengan kemampuan berpikir kritis tinggi, karena lebih dari 70% peserta didik memenuhi kriteria kemampuan berpikir kritis tinggi. Namun peserta didik laki-laki memiliki kemampuan berpikir kritis lebih tinggi dibandingkan peserta didik perempuan. Hal itu dibuktikan dengan terpenuhinya semua indikator berpikir kritis oleh peserta didik laki-laki, sedangkan peserta didik perempuan hanya pada Clarity yang artinya indikator Overview belum terpenuhi.
PENGARUH METODE FLIPPED CLASSROOM BERBANTUAN SCHOOLOGY TERHADAP HASIL BELAJAR SISWA DITINJAU DARI KEMANDIRIAN BELAJAR Najia; Iis Holisin; Himmatul Mursyidah
Journal of Mathematics Education and Science Vol. 4 No. 2 (2021): Journal of Mathematics Education and Science
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.07 KB) | DOI: 10.32665/james.v4i2.247

Abstract

The research aims to describe whether or not there is an effect of the flipped classroom learning method assisted by Schoology on students’ learning outcomes, to investigate the influence between high learning independence and low learning independence on students’ learning outcomes, to investigate the interaction of the use of learning methods and independence learning on students’ learning outcomes, and to analyze student’s activities. The research method used is a quasi-experimental method and uses a 2×2 factorial design with two-way analysis of variance conducted in VIII grade at junior high school Muhammadiyah 5 of Surabaya. The sample in the research was 54 students consisting of VIII-C grade and VIII-E grade. The results showed that the average of students’ learning outcomes in the high and low learning independence categories were 91.00 and 82.00 in the experimental class, respectively, with the percentage of students’ activity classically 66.07% in the sufficient category. While in the control class, the average of students’ learning outcomes in the high and low learning independence categories were 81.053 and 69.625, respectively. Based on the two-way ANOVA test (two-way analysis of variance) shows that there is a significant difference between learning outcomes using the flipped classroom learning method assisted by Schoology and using e-learning which is commonly used in SMP Muhammadiyah 5 Surabaya with the help of Microsoft teams. There is an influence between high learning independence and low learning independence on students’ learning outcomes. However, there is no interaction between learning methods and students’ learning independence on students’ learning outcomes at SMP Muhammadiyah 5 Surabaya. Asbtrak Penelitian ini bertujuan untuk menginvestigasi ada tidaknya pengaruh metode pembelajaran flipped classroom berbantuan schoology terhadap hasil belajar siswa, menginvestigasi pengaruh antara kemandirian belajar tinggi dan kemandirian belajar rendah terhadap hasil belajar siswa, menginvestigasi interaksi penggunaan metode pembelajaran dan kemandirian belajar terhadap hasil belajar siswa dan menganalisis aktivitas siswa. Metode penelitian yang digunakan adalah metode quasi eksperimen menggunakan rancangan factorial 2×2 dengan analisis ANAVA dua jalan yang dilakukan pada kelas VIII SMP Muhammadiyah 5 Surabaya. Sampel pada penelitian ini yaitu 54 siswa terdiri dari siswa kelas VIII-C dan kelas VIII-E. Hasil penelitian menunjukkan rata-rata hasil belajar siswa kategori kemandirian belajar tinggi dan rendah berturut-turut adalah 91,00 dan 82,00 di kelas eksperimen, dengan persentase aktivitas siswa secara klasikal 66,07% dalam kategori cukup. Sedangkan pada kelas kontrol, rata-rata hasil belajar siswa kategori kemandirian belajar tinggi dan rendah adalah 81,053 dan 69,625. Berdasarkan uji ANAVA dua jalan menunjukkan bahwa terdapat perbedaan signifikan antara hasil belajar yang menggunakan metode pembelajaran flipped classroom berbantuan schoology dengan yang menggunakan pembelajaran e-learning yang umum digunakan di SMP Muhammadiyah 5 Surabaya. Terdapat pengaruh antara kemandirian belajar tinggi dan kemandirian belajar rendah terhadap hasil belajar siswa. Namun, tidak terdapat interaksi antara metode pembelajaran dan kemandirian belajar siswa terhadap hasil belajar siswa.

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