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Menampilkan 91–100 dari 14705 artikel
Building spatial skills in a fun way: Exploring cube learning through a joyful approach
Spatial ability is a crucial component of learning geometry, particularly with cube materials that require students to visualize three-dimensional objects, perform mental rotation, and understand relationships among faces. This study aims to describe students' spatial abilities through the implementation of Joyful Learning in class IX.3 of SMP Negeri 17 Palembang. The research employed a descriptive design with a final sample of 34 students. Instruments included a spatial ability test based on f...
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Comparison of Gauss Quadrature and Newton–Cotes methods of order 10 in definite integral calculations
This study aims to evaluate and compare the accuracy of the Gauss Quadrature Method and the 10th Order Newton–Cotes Method based on numerical error in computing definite integrals, especially for complex functions that are difficult to solve analytically. The Gauss Quadrature Method studied includes the use of 2-point, 3-point, 4-point, 5-point, and 6-point rules, where the term points refers to the number of nodes used in the integration process. In contrast, the 10th-order Newton–Cotes Method...
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The effect of team assisted individualization on students' mathematical problem solving ability
Mathematical problem-solving ability is a critical competency in 21st-century education, yet many students at the junior secondary level continue to struggle with solving non-routine problems and applying systematic strategies. This study aims to examine the effect of the Team Assisted Individualization (TAI) cooperative learning model on students' mathematical problem-solving ability in a madrasah context, which remains underexplored in previous research. A quantitative approach with a quasi-ex...
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Designing hypothetical learning trajectory of geometry transformation using realistic mathematics education
KOMAEDI, ZAHRA
; Putri Ayunia Rahmawati
; Saskia Eva Aprilia
; Gladis Audia Meyfika
; Putri Claudia Maharani Saputro
; Farida Nursyahidah
Geometric transformation is an important topic in mathematics that students must master. However, many students find it difficult to understand geometric transformations abstractly. Thus, the purpose of this research is to develop a learning trajectory that facilitates students' understanding of geometric transformations by using the context of Tayub Dance and GeoGebra media for ninth-grade students at junior high schools in Semarang. The approach applied is Realistic Mathematics Education (RME)...
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Long-run dynamics and error correction mechanism of inflation in Indonesia: a vector error correction model approach
This study examines the impact of BI Rate fluctuations and exchange rate movements on inflation stability in Indonesia from August 2016 to August 2025. The Vector Error Correction Model (VECM) maps long-term, short-term, and dynamic responses among variables. VECM estimations reveal a significant long-term equilibrium with an Exchange Rate coefficient of 1.9314 and a BI Rate coefficient of -0.0917. These findings highlight a high exchange rate pass-through, in which price stability is more sensi...
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Modeling the frequency of traffic accident compensation claims by jasa raharja using the GSTARX model
Fluctuations in traffic accident frequency increase PT Jasa Raharja's exposure to claims and financial risks, while total compensation claims are stochastic because they are influenced by incident frequency and accident severity. Although the Generalized Space-Time Autoregressive with Exogenous Variable (GSTARX) model has been widely used to model spatial-temporal data, its application remains primarily in macroeconomics, simulation studies, and non-insurance phenomena. Hence, its application to...
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Identifying key determinants of students' mathematics achievement using lasso regression
Cognitive, socioeconomic, and instructional factors influence students' mathematics achievement. However, modeling these determinants becomes challenging when the number of predictors is relatively large compared to the available sample size, potentially leading to unstable estimates in conventional regression models. This study aims to identify key determinants of students' mathematics achievement using the Least Absolute Shrinkage and Selection Operator (LASSO) regression approach and to const...
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Pembuatan Dan Penerapan Pupuk Organik Cair (Kocor) di Kebun Lordes Dalam Upaya Meningkatan Pertumbuhan Tanaman Melon (Cucumis melo L.)
Bria, Deseriana
; Mamo, Wenselaus
; Aja, Lorensius Yustianus
; Ndua, Natalia Desy Djata
; Naisali, Hyldegardis
; Tay, Delviana
; Naitili, Alexandria
The study aimed to develop and apply liquid organic fertilizer (kocor) in Lordes Farm to improve the growth and productivity of melon (Cucumis melo L.). The production of liquid fertilizer was carried out through fermentation using brown sugar, EM4, humic acid, and urea as nutrient sources, producing a nutrient-rich liquid suitable for soil application. The application was conducted by drenching the fertilizer around the root zone at regular intervals. The results showed that liquid organic fert...
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Pemberdayaan KWT Arum Lestari Desa Pandak Banyumas Melalui Inovasi Ipteks Untuk Meningkatkan Kualitas dan Pemasaran Produk Makanan Ringan
The Arum Lestari Women Farmers Group in Pandak Village, Banyumas, has a great opportunity in developing the production of snacks made from local agricultural products. The snacks produced are processed sweet potato products. The problems faced include limitations in maintaining product quality, lack of efficiency in the production process, and constraints in marketing and business management. The objective of the community service activity is to improve the quality and effectiveness of marketing...
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Evaluating the Results According to Simulations to Improve Power Control and Enhance Optical Communication Performance
In this paper, an experimental study has been conducted to detail power-control optimization in wavelength-division multiplexed (WDM) optical communication systems by use of Erbium-Doped Fiber Amplifiers (EDFAs). Our study shows that adaptive power control can greatly improve the performance of the system with a superb 35.7% improvement of the maximum power capacity relative to traditional constant power schemes. Throughout its study, the paper uses elaborate simulations to determine the bit-err...
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