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All Journal Jurnal Riset dan Inovasi Pembelajaran Indonesian Journal of Teaching in Science
Nuraida, Indri
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Chemistry Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences Other

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Steam Power Plant Powered by Wood Sawdust Waste: A Prototype of Energy Crisis Solution Hidayah, Fachri; Muslihah, Fitriyyatul; Nuraida, Indri; Winda, Ratu; Vania, V.; Rusdiana, Dadi; Suwandi, Tri; Aziz, Muhammad
Indonesian Journal of Teaching in Science Vol 1, No 1 (2021): IJOTIS: March 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1607.431 KB) | DOI: 10.17509/ijotis.v1i1.33777

Abstract

The used of electricity from year to year is increasing. One of the alternative to power plants with abundant availability is wood waste. The aims of this study is to: (1) design a wood waste PLTU prototype as an alternative biomass-based energy resource and an effort to reduce wood waste, (2) describe the calorific value, the resulting electrical voltage, and the duration of the lamp flame generated from wood waste fuel. Teak (Tectona grandis), surian wood waste (Toona sureni), and a mixture of both. This descriptive research includes 3 stages, which is analysis, design, and testing. Through this research, a prototype of a wood waste steam power plant was successfully designed by utilizing biomass waste fuel. The results showed that the calorific value, the resulting electrical voltage, and the resistance time of the lamp varied in the wood samples used. This indicates that the wood samples used have the potential to be used as an alternative to biomass-based energy resources.
Inovasi Pembelajaran Problem-Based Liveworksheets untuk Meningkatkan Keterampilan Problem Solving Siswa Nuraida, Indri; Maharani, Salsabilla; Supriatno, Bambang; Hamdiyati, Yanti
Jurnal Riset dan Inovasi Pembelajaran Vol. 6 No. 1 (2026): Januari-April 2026
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/jrip.v6i1.4410

Abstract

Penelitian ini bertujuan untuk menganalisis efektivitas inovasi pembelajaran Problem-Based Liveworksheets dalam meningkatkan keterampilan problem solving siswa pada materi keanekaragaman hayati. Inovasi ini mengintegrasikan tahapan Problem-Based Learning (PBL) dengan lembar kerja digital interaktif serta pemanfaatan data dari IUCN Red List. Penelitian menggunakan metode pra-eksperimen dengan desain One-Group Pretest–Posttest yang melibatkan 36 siswa kelas X. Instrumen yang digunakan berupa tes problem solving yang dikembangkan berdasarkan empat indikator. Data dianalisis menggunakan box plot, persentase perubahan skor, dan perhitungan N-gain untuk melihat perkembangan kemampuan siswa setelah perlakuan. Hasil penelitian menunjukkan bahwa keterampilan problem solving siswa mengalami peningkatan setelah mengikuti pembelajaran Problem-Based Liveworksheets. Peningkatan ini tampak pada distribusi skor yang pretest dan posttest, serta tercermin pada seluruh indikator keterampilan problem solving. Secara keseluruhan, penelitian ini menyimpulkan bahwa Problem-Based Liveworksheets merupakan pembelajaran yang efektif untuk meningkatkan keterampilan problem solving siswa dalam pembelajaran biologi, khususnya pada materi yang menuntut kemampuan analitis dan berpikir kritis.
Co-Authors Bambang Supriatno Hidayah, Fachri Maharani, Salsabilla Mrs Yanti Hamdiyati Muhammad Aziz Muslihah, Fitriyyatul Suwandi, Tri Vania, V. Winda, Ratu