This study aims (1) to describe the effect a problem -solving learning methods assisted by GeoGebra Software on mathematical communication skills (KKM) of class XI Private SMK PAB 12 Saentis. (2) describe the problem- solving answer process for students solving the problem- solving methods assisted by GeoGebra and expository learning. The research method used is the quasi-experimental method. Samples were taken randomly and obtained 64 students who were likened to the experimental class and the control class. Tests of mathematical communication skills were measured through 4 items of description. Data analysis was performed using the t-test. Based on the results of the analysis, the problem -solving learning method has a significant influence on mathematical communication skills. The process of student answers to the problem- solving learning method assisted by GeoGebra is better.
PT. Gold Coin Indonesia-Medan merupakan perusahaan yang bergerak dalam industri pakan ternakmemiliki rantai distribusi dari Central Supply Facilities (CSF) di Medan ke Distribution Center (DC) yangberada di Aceh, Sumatera Utara, Sumatera Barat dan Riau serta Kepulauan Riau. Proses pendistribusianmengalami kendala dalam proyeksi permintaan pada masing-masing DC pada masa yang akan datang sebabmasih cenderung menggunakan metode estimasi dan trial and error. Hal ini menyebabkan terjadinyaketerlambatan pengiriman dan kekurangan jumlah produk pada DC sehingga tidak terpenuhinya permintaanpelanggan. Manajemen rantai pasok (Supply Chain Management) yang ada tidak berjalan lancar karenamengalami kendala pada rantai pasok manufaktur dan distribusi tersebut. Oleh karena itu, penulis mengambiljudul penelitian “Perancangan Konsep Distribution Resource Planning (DRP) Dalam Mendukung Sistem SupplyChain Management (SCM) Pada PT. Gold Coin Indonesia – Medan.”Penyelesaian permasalahan pendistribusiandilakukan dengan melakukan peramalan (forecasting) data permintaan pada setiap DC, melakukan perhitunganorder quantity, perhitungan frekuensi pemesanan, perhitungan safety stock, dan penyusunan DRP worksheet.Konsep DRP memberikan aliran produk dari CSF ke setiap DC pada waktu dan jumlah yang sudah terintegrasi,sehingga dapat menjaga kelancaran pengiriman produk dalam memenuhi kebutuhan atau permintaan sertameningkatkan pelayanan terhadap pelanggan melalui perencanaan pendistribusian yang memproyeksikankebutuhan yang akan datang sehingga dapat mengurangi stock out. Penggunaan Distribution Resource Planning(DRP) menyebakan penurunan biaya distribusi sebesar Rp. 58,443,442;- atau 10 % dari kondisi aktualperusahaan selama ini. Perhitungan safety stock dilakukan sebagai acuan pemesanan kembali pada masingmasingDC. Hasil perhitungan safety stock untuk masing-masing DC adalah DC 1 sebanyak 46 ton, DC 2sebanyak 58 ton, DC 3 sebanyak 58 ton, dan DC 4 sebanyak 120 ton. Sedangkan untuk order quantity yangdiperoleh untuk masing-masing DC adalah DC 1 sebanyak 852 ton, DC 2 sebanyak 504 ton, DC 3 sebanyak 470ton, dan DC 4 sebanyak 360 ton. Dengan jumlah pemesanan sebagai berikut Jumlah pemesanan untuk masingmasingDC selama 13 periode yaitu DC 1 sebanyak 4 kali, DC 2 sebanyak 4 kali, DC 3 sebanyak 4 kali, dan DC4 sebanyak 8 kali. Hal ini dapat meminimalkan biaya distribusi.
This paper reviews safety safety measures and safety culture and uses them as the basis for a new and more practical construction named 'safety orientation'. Factors and items from the scale reviewed are related to factor names and importance, reliability, and validity. The analysis shows that researchers have found it difficult to move from the exploratory stage to the confirmation and causal stage which allows agreement on industry standards that can be used as benchmarks. Safety orientation is safety as an operational construct of safety culture and as a first step towards more practical instruments for safety benchmarking, so that strategy improvements can be implemented.
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