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All Journal Jurnal Peluang AKSIOMA: Jurnal Program Studi Pendidikan Matematika Numeracy : Jurnal Ilmiah Pendidikan Matematika Jurnal Sains Riset Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Akrab Juara : Jurnal Ilmu-ilmu Sosial STUDI PELAKSANAAN SELFMEDICATION PADA PENDERITA DIARE BERDASARKAN TINGKAT PENGETAHUAN MASYARAKAT PESISIR KECAMATAN SOROPIA KABUPATEN KONAWE Asimetris: Pendidikan Matematika dan Sains Jurnal Real Riset COVIT AGRI-SOSIOEKONOMI Tematik: Jurnal Konten Pendidikan Matematika Amalgamasi: Journal of Mathematics and Applications
Zulfa Razi
Universitas Jabal Ghafur
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences

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EFEKTIFITAS MODEL PEMBELAJARAN BERBASIS MASALAH TERHADAP AKTIVITAS DAN HASIL BELAJAR SISWA SMP NEGERI 2 SIGLI Winta Mastura; Zulfa Razi
Akrab Juara : Jurnal Ilmu-ilmu Sosial Vol 3 No 1 (2018): Februari
Publisher : Yayasan Azam Kemajuan Rantau Anak Bengkalis

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Model pembelajaran berbasis masalah merupakan salah satu pendekatan pembelajaran yang digunakan untuk merangsang berpikir tingkat tinggi siswa dalam situasi yang berorientasi pada masalah dunia nyata, termasuk di dalamnya bagaimana belajar. Rumusan masalah dalam penelitian ini adalah apakah penerapan model pembelajaran berbasis masalah dapat meningkatkan aktivitas siswa pada pembelajaran matematika? Apakah penerapan model pembelajaran berbasis masalah dapat meningkatkan hasil belajar siswa pada pembelajaran matematika? Bagaimanakah efektifitas kemampuan pengelolaan guru dalam pembelajaran matematika dengan model pembelajaran berbasis masalah? Penelitian ini bertujuan untuk mengetahui efektifitas model pembelajaran berbasis masalah terhadap hasil belajar, aktivitas siswa dan kemampuan guru dalam mengelola pembelajaran. Penelitian ini tergolong ke dalam penelitian deskriptif kualitatif dan kuantitatif. Berdasarkan hasil penelitian hasil belajar siswa sebanyak 68% memenuhi KKM, persentase tersebut tergolong kategori tinggi. Aktivitas siswa, efektifitasnya tergolong dalam kategori aktif. Kemampuan guru dalam mengelola pembelajaran menggunakan model pembelajaran berbasis masalah pada pokok bahasan operasi aljabar pada RPP I diperoleh rata-rata sebesar 3,43 sedangkan pada RPP II sebesar 3,62 secara umum termasuk kategori aktif.
SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN SKINCARE UNTUK WAJAH SENSITIF DI KLINIK KECANTIKAN LA BEAUTEE CARE BLOK SAWAH DENGAN MENGGUNAKAN METODE TOPSIS DAN METODE SAW BERBASIS WEB Nisa Imania; Junaidi Salat; Rahmad Rizki; Zulfa Razi
Jurnal Real Riset Vol 5, No 1 (2023): Januari 2023
Publisher : Jurnal Real Riset

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Abstract

Kebutuhan masyarakat akan skincare saat ini sangatlah besar, apalagi bagi wanita yang kebanyakan dari mereka selalu ingin tampil cantik dan menarik dan menjadi pusat perhatian orang banyak. Nilai kecantikan perempuan sering dilihat dengan kulit wajah yang cantik dan mulus, sehingga tidak mengherankan produk apapun yang bisa memutihkan kulit wajah laku keras di pasaran. Perawatan kulit (skincare) adalah prosedur atau langkah-langkah merawat kulit yang dilakukan dengan menggunakan produk-produk skincare  dengan kandungan bahan yang aman serta baik digunakan sesuai dengan jenis kulit wajah masing-masing individu. Sebelum melakukan perawatan kulit hal yang paling utama adalah mengetahui produk yang terbaik untuk jenis kulit di wajah kita masing-masing. Dalam proses perancangan aplikasi sistem pendukung keputusan pemilihan skincare yang sesuai dengan jenis kulit wajah menggunakan perbandingan dua buah metode yaitu metode TOPSIS dan metode SAW. Penelitian ini dipilih karena mampu menyeleksi alternatif terbaik dari sejumlah alternatif yang adadengan dua metode tersebut. Dalam hal ini alternatif yang dimaksudkan yaitu produk facial foam yang terpilih berdasarkan kriteria yaitu kriteria jenis kulit, kadar PH, kemasan produk, efektif pemakaian dan harga produk. Aplikasi dibuat dengan menggunakan Bahasa pemograman PHP, dengan database MySQL dan sarana pendukung software seperti Adobe Photoshop. Aplikasi ini diharapkan dapat lebih efektif terutama dalam hal membuat keputusan.Kata Kunci : kulit wajah sensitif, skincare, sistem pendukung keputusan, Topsis, SAW.
APLIKASI SIMULASI PROBABILISTIK UNTUK MEMPREDIKSI KETERSEDIAAN BARANG PADA TOKO REMAJA PONSEL MENGGUNAKAN METODE MONTE CARLO BERBASIS WEB Istara Nadia; Husaini Husaini; Laila Qadriah; Zulfa Razi
Jurnal Sains Riset Vol 13, No 1 (2023): April 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Jabal Ghafur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47647/jsr.v13i1.1091

Abstract

The youth mobile shop is a small and medium business located in pasi lhok village, Kembang Tanjong subdistric, Pidie district, Aceh province, the youth mobile shop sells various types of cellphones including Samsung, Xiaomi, Oppo, Asus, Lenovo, Huawei, and so on. With the right sales quantity planning, business actors in mobile youth shops will be able to predict well the possible in the future. Monte carlo is not a type of simulation, but rather a technique used for simulation. This method is quite simple in describing or solving various problems,including in using the programs. The monte carlo method can find out the average number of requests for goods and helps determine the percentage of product sales in the store so that it can be used as a consideration in making strategies for sales more effective.Keywords : Application, Probabilistic, Simulation, Availability Prediction, Monte carlo method
SISTEM PENDUKUNG KEPUTUSAN DALAM PEMILIHAN SUPPLIER BAHAN BANGUNAN DI TOKO JASA HAI UJONG RIMBA MENGGUNAKAN METODE MOORA Mirna Ananda Putri; Laila Qadriah; Junaidi Salat; Zulfa Razi
Jurnal Real Riset Vol 5, No 2 (2023): Juni 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Jabal Ghafur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47647/jrr.v5i2.1190

Abstract

Supplier atau pemasok adalah perusahaan atau individu yang menyediakan sumber daya yang dibutuhkan oleh sebuah perusahaan untuk memproduksi barang atau jasa tertentu untuk meningkatkan kualitas sebuah perusahaan, untuk meningkatkan kualitas sebuah perusahaan upaya yang dilakukan adalah memilih supplier. Perancagan yang dilakakukan dalam pemilihan supplier bahan bangunan di Toko Jasa Hai Ujong Rimba masih menggunakan cara yang umum, berdasarkan permasalahan tersebut, maka perlu dibuat perancangan sistem pendukung keputusan dengan menggunakan Metode Moora untuk menentukan supplier dengan proses analisa sistem menggunakan bahasa pemograman PHP serta penyimpanan data dengan MySQL, sistem ini diperlukan dengan kriteria-kriteria harga, kualitas produk, pelayanan, ketepatan pengiriman, ketepatan jumlah yang telah ditentukan oleh pengguna menggunakan Metode Moora. Sistem ini memudahkan dalam proses perhitungan dalam menentukan mana supplier yang cocok melalui peragkingan, sehingga perusahaan dapat memilih supplier lebih mudah.     Kata Kunci : Supplier, Metode Moora
METODE PEMBELAJARAN IMPROVE TERHADAP KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA Zulfa Razi; Maryanti Maryanti; Mirunnisa Mirunnisa
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 2 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i2.362

Abstract

The purpose of this research is to determine whether using the IMPROVE learning approach can improve students' ability to think critically mathematically. This experimental research used a pretest-posttest control group design. This research involved all students in class XI MIPA SMA Negeri 1 Peukan Baro. Two classes, class XI MIPA 1 and class XI MIPA 2, were selected as experimental and control samples. This study uses questions to test students' mathematical critical thinking skills. After the prerequisites for testing were met, the data were analyzed using an independent t-test at a significant level of 0.05. According to the results of data analysis, the value of tcount = 3.839, and the value of Sig. 2-tailed = 0.00043, and the Sig. 1-tailed = 0.000215, because the Sig. 1-tailed = 0.000215 < α = 0.05, which indicates that H0 is rejected and Ha is accepted
SISTEM PENDUKUNG KEPUTUSAN PENERIMAAN BARANG GADAI NASABAH DIKANTOR PEGADAIAN CABANG SIGLI MENGGUNAKAN METODE FROFILE MATCHING BERBASIS WEB Sari, Nabila; Husaini, Husaini; Razi, Zulfa
Jurnal Real Riset Vol 5, No 3 (2023): Oktober 2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Jabal Ghafur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47647/jrr.v5i3.1526

Abstract

 The Profile Matching method is profile matching, carried out to identify good and bad customers. These customers can be measured using several assessment criteria. In addition, in designing a decision support system, we must determine the feasibility of pawn goods according to the requirements. Therefore, we apply the Profile Matching Method to determine the feasibility of pawning the item. The database used is the MySql database which is stored on an online server so that it can be accessed by web-based system applications.Keywords : Profile Matching Method, Customers, Databases 
Analisis Kepuasan Konsumen Pada Kopi Lain Hati Manado (Hati 463, Jl. Jendral Sudirman No. 96, Komo Luar, Kecamatan Wenang) Nuraziizah, Zulfaa; Mandei, Juliana Ruth; Loho, Agnes Estephina
AGRI-SOSIOEKONOMI Vol. 19 No. 1 (2023): Agri-Sosioekonomi
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.43 KB) | DOI: 10.35791/agrsosek.v19i1.46443

Abstract

This study aims to analyze consumer satisfaction with Manado's Lain Hati coffee. This research was conducted from April to June 2022. The data used are primary data and secondary data. Primary data was obtained through direct interviews with 30 respondents using a questionnaire. Secondary data obtained through business owners, the internet and other sources related to this research. The results showed that customer satisfaction of Kopi Lain Hati Manado through the variables of product, price, place, promotion and service quality, achieved a total score of 2,500 which indicated a consumer satisfaction index number of 83.33% and was classified as satisfied. There are two variables that have the highest level of satisfaction, namely the service quality variable of 87.33% belonging to the very satisfied category and the product variable of 86.40% belonging to the very satisfied category. While other variables, namely the promotion variable of 81.00%, the price of 80.00%, and the place of 79.66% which are classified in the satisfied category. This shows that consumers are generally satisfied with all the variables from Kopi Lain Hati Manado.
PERAMALAN NILAI TUKAR PETANI PROVINSI ACEH: DITINJAU DENGAN METODE DOUBLE EXPONENTIAL SMOOTHING DAN HOLT WINTER Razi, Zulfa; Mirunnisa, Mirunnisa; Maryanti , Maryanti; Nurhayati, Nurhayati
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 5 No. 2 (2024): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v5i2.703

Abstract

This research aimed to compare the performance of the Double Exponential Smoothing and Holt-Winter methods in forecasting the Farmer Exchange Rate (NTP) for the Horticulture Farmer Subsector in Aceh Province. Secondary data on the NTP for the Aceh Horticulture Subsector from 2020-2023 was obtained from the Aceh Provincial Central Statistics Agency (BPS) website. The data processing was carried out using the R software. The results showed that the Double Exponential Smoothing method had a Root Mean Squared Error (RMSE) of 3.413201, a Mean Absolute Percentage Error (MAPE) of 2.85835, and a Mean Percentage Error (MPE) of -0.5980113. Meanwhile, the Holt-Winter's Additive method had an RMSE of 4.055652, a MAPE of 3.055992, and an MPE of 0.2534276. The best forecasting method was selected based on the smallest RMSE, MAPE, and MPE values, which was Double Exponential Smoothing. The 12-month forecast using the Double Exponential Smoothing method indicated that the lowest NTP would occur in January 2024 at 106.7195, while the highest NTP would be in December 2024 at 113.6443
PEMODELAN DAN PREDIKSI CURAH HUJAN MENGGUNAKAN IMBAL HASIL HETEROSKEDASTIS DI KABUPATEN BANDUNG Nurhayati, Nurhayati; Razi, Zulfa; Apriani, Wiwin
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 5 No. 3 (2024): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v5i3.860

Abstract

Bandung Regency located in West Java Province, Indonesia, has a tropical climate with high rainfall variation. This variable rainfall pattern is one of the main characteristics of tropical regions, where seasonal changes such as the rainy and dry seasons significantly impact annual rainfall patterns. In addition, high rainfall is often a trigger for natural disasters, such as floods and landslides, which can cause economic and social losses. Therefore, the ability to predict rainfall accurately is crucial, both for disaster risk mitigation and as a basis for decision-making in various sectors. This study aims to predict rainfall in Bandung Regency for the next year using a time series model approach, specifically a heteroscedastic model. The main focus of the study is to examine rainfall returns, or changes in rainfall over time while considering the nature of heteroscedasticity. In this condition, the variance of the data is not constant over time. The phenomenon of heteroscedasticity is common in rainfall data due to significant changes between seasons or extreme weather events. The study results indicate that the best model for predicting rainfall imbal hasil s is the Autoregressive Conditional Heteroskedasticity (ARCH) model. The selection of this model is based on the Akaike Information Criterion (AIC), which shows that the ARCH model outperforms the GARCH(1,1) model in handling variance instability in rainfall data. The advantage of the ARCH model lies in its ability to dynamically model variance instability, resulting in more accurate predictions. This model is not only capable of capturing high volatility patterns but also provides a more realistic estimate of large fluctuations that could occur in the future.
Implementation of The Desmos Application in Learning Functions to Enhance Students' Conceptual Understanding Mirunnisa, Mirunnisa; Razi, Zulfa
Tematik : Jurnal Konten Pendidikan Matematika Vol. 3 No. 2 (2025): TEMATIK: Jurnal Konten Pendidikan Matematika
Publisher : Prodi Tadris Matematika Fakultas Tadris Umum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55210/tematik.v3i2.2163

Abstract

Understanding the concept of functions is a fundamental aspect of mathematics education, which often poses challenges for students due to its abstract nature. The utilization of software-based learning technology, such as the interactive and user-friendly Desmos application, can support the learning process with rich graphical visualizations, thereby enhancing student engagement and understanding. This article examines the implementation of the Desmos application in function learning at the high school level, focusing on improving students' conceptual understanding. Through quantitative and qualitative research involving 60 eleventh-grade students, it was found that the use of Desmos significantly improved learning outcomes, motivation, and student learning activities. These findings imply the need for integrating visualization technology into mathematics education to effectively support the learning of abstract concepts.
Co-Authors Agnes E. Loho Apriani, Wiwin Fona Fitry Burais Hayatun Nufus hery saputra Husaini Husaini Husaini Husaini Istara Nadia Juliana Ruth Mandei Junaidi Junaidi Junaidi Salat Khairul Ismi Laila Qadriah Maryanti , Maryanti Maryanti Maryanti Mastura, Winta Maulina, Suci Mirna Ananda Putri Mirunnisa Mirunnisa Mirunnisa, Mirunnisa Mislianti Mislianti Muhsin Muhsin Nisa Imania Nurhayati Nurhayati Rahmad Rizki Sari, Nabila Winta Mastura Zulfikar Zulfikar