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All Journal Jurnal Ilmiah Teknik Industri Jurnal Cendekia : Jurnal Pendidikan Matematika
Desi Rahmawati
Universitas Muhammadiyah Surakarta
Education Industrial & Manufacturing Engineering Mathematics

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Evaluasi Kompleksitas dan Aksesibilitas Produk Untuk Kemudahan Proses Pembongkaran Ida Nursanti; Desi Rahmawati; Much Djunaidi; Muchlison Anis
Jurnal Ilmiah Teknik Industri Vol. 17, No. 2, Desember 2018
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v17i2.6815

Abstract

Water pump machines are electronic products that are widely used by the community. Because of the high frequency of use, this product is quickly damaged. In order to reduce the environmental impact, the ease of the product to be repaired or recycled needs to be improved, especially the dismantling process because it is the initial process to separate components. This study aims to evaluate the ease of dismantling a water pump machine based on the ease of component to be reached and the complexity of the component and product design. Evaluation begins by identifying the initial product design and the relationships between components needed to determine the order of possible product demolition and as an attribute of calculating complexity and accessibility indexes. The calculation results show that the complexity and accessibility idex values for each component are the same in all disassembly sequences because the product design does not allow for sub-assembly. The most complex components are mechanical seal, water reservoirs and lids beside the pump body. While the components that are most difficult to access are impellers, mechanical seals and rator covers.
Pengaruh Multimedia Berbasis Website Pada Pembelajaran Matematika Terhadap Motivasi Belajar Siswa Sekolah Dasar Desi Rahmawati; Yulia Maftuhah Hidayati
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 6 No 3 (2022): Jurnal Cendekia: Jurnal Pendidikan Matematika Volume 6 Nomor 3 Tahun 2022
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v6i3.1465

Abstract

Multimedia berbasis website merupakan inovasi dari multimedia interaktif dalam proses pembelajaran. Berdasarkan studi di lapangan, pembelajaran masih menggunakan media konvensional yaitu buku paket dari sekolah dan kadang-kadang guru juga menggunakan power point untuk mengajar serta metode yang digunakan guru sedikit beragam sehingga belajar menjadi membosankan bagi siswa dan cenderung monoton. Hal tersebut akan mengakibatkan rendahnya motivasi belajar siswa. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan multimedia berbasis website pada pembelajaran matematika terhadap motivasi belajar siswa kelas V SD Negeri Jatilor kabupaten Grobogan. Penelitian menggunakan metode eksperimen (pre-experimental design) desain yang dipakai yaitu one-group pretest posttest. Teknik pengumpulan data melalui kuesioner atau angket. Analisis data menggunakan uji N-Gain melalui bantuan program softwere IBM SPSS Statistic 26. Hasil uji hipotesis didapatkan adalah nilai t hitung (23,864) > t tabel (2,045) dan nilai probabilitas (0,000) < 0,05 yang berarti bahwa ditolaknya H0 dan diterimanya H1. Serta hasil uji N-Gain Score yaitu sebesar 0,77 dan N-Gain persen sebesar 77,50% yang artinya kategori tafsiran memiliki nilai efektivitas tinggi. Sehingga bisa disimpulkan bahwa multimedia berbasis webite pada pembelajaran matematika berpengaruh terhadap motivasi belajar siswa kelas V SD Negeri Jatilor yaitu sebesar 77,50 %.
Co-Authors Ida Nursanti Much Djunaidi Muchlison Anis Yulia Maftuhah Hidayati