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All Journal Jurnal Ilmiah Pendidikan dan Pembelajaran Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa J-CEKI
Rusniati, Ni Wayan
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Humanities Earth & Planetary Sciences Education Mathematics Social Sciences

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EFEKTIVITAS PENERAPAN METODE CONTEXTUAL TEACHING AND LEARNING TERHADAP PENINGKATAN HASIL BELAJAR SISWA DALAM MATA PELAJARAN ILMU PENGETAHUAN ALAM (IPA) KHUSUS DALAM MATERI SIFAT-SIFAT CAHAYA Rusniati, Ni Wayan
Jurnal Ilmiah Pendidikan dan Pembelajaran Vol. 2 No. 3 (2018): Oktober 2018
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jipp.v2i3.16231

Abstract

The process and student learning outcomes in science learning material properties of light is a problem faced by class IV SD Negeri 3 Mengwi. Student activity and learning outcomes have not been maximized because the teacher delivered science learning materials using the lecture method. This is the background of the researchers to conduct research with the aim of improving the process and learning outcomes of science with material properties of light with learning models Contextual Teaching and Learning. This research is a type of classroom action research conducted in SD Negeri 3 Mengwi. The subjects of this study were fourth grade students, amounting to 27 students consisting of 14 female students and 13 male students. The implementation of this study used 2 cycles. Instruments used to collect data are observation sheets, interviews, documentation and test questions. The results of this study indicate that science learning outcomes with material properties of light using the Contextual Teaching and Learning model in SD Negeri 3 Mengwi have increased in two cycles with quite satisfactory values. There was an increase in learning outcomes from cycle 1 an average value of 68.51 to 75.37 in cycle 2. In addition, there was an increase in the learning process of students in science learning carried out by teachers using the Contextual Teaching and Learning model. Keywords: Learning process, learning outcomes, Contextual Teaching and Learning
Analisis Perpindahan Preferensi Konsumen Antar Merek Mie Instan Menggunakan Model Markov Chain: Studi Kasus: Mie Gacoan, Mie Kober, dan Wizzmie Kosasih, Eva; Barus, Eka Valencia Br; Rusniati, Ni Wayan; Cahyani, Cokorda Istri Sintya Dwi Mirah
J-CEKI : Jurnal Cendekia Ilmiah Vol. 4 No. 3: April 2025
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jceki.v4i3.8352

Abstract

This study aims to analyze consumer brand switching behavior among three instant noodle brands: Mie Gacoan, Mie Kober, and Wizzmie, using the Markov Chain model. The Markov Chain method is employed to determine transition probabilities of consumer preferences and predict future consumption behavior based on past patterns. A survey of 100 respondents was conducted, focusing on their brand preferences over the past three months and their most recent consumption choice. The results indicate that Mie Gacoan has the highest consumer retention rate, whereas Mie Kober and Wizzmie exhibit varying switching patterns. The equilibrium transition probabilities predict that, in the long run, Mie Gacoan will hold 74% of the market share, Mie Kober 4%, Wizzmie 9%, and 'Other' brands 13%.
Optimisasi Keuntungan Produksi Kue pada Cake By Cece Menggunakan Algoritma Branch and Bound Kosasih, Eva; Rusniati, Ni Wayan; Tari Tastrawati, Ni Ketut
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 5 (2025): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v3i5.748

Abstract

This study aims to optimize the cake production profit at Cake by Cece using the Branch and Bound algorithm. The data used include raw material requirements per batch, daily raw material availability, and selling prices for three types of cakes: Cookies, Brownies, and Cinnamon Roll. The optimization model is formulated as an Integer Linear Programming problem with the objective of maximizing total daily profit. The model is solved using the simplex method followed by the Branch and Bound algorithm to obtain valid integer solutions. The results indicate that the optimal production combination is 2 batches of Cookies, 2 batches of Brownies, and 3 batches of Cinnamon Roll, yielding a maximum profit of IDR 233,000 per day. This solution satisfies all raw material constraints and is feasible for daily operational implementation. This study provides quantitative recommendations to support production decision-making in culinary sector MSMEs.
Co-Authors Barus, Eka Valencia Br Cahyani, Cokorda Istri Sintya Dwi Mirah Kosasih, Eva Tari Tastrawati, Ni Ketut