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All Journal SAINTIFIK@ : Jurnal Pendidikan MIPA Orbital: Jurnal Pendidikan Kimia
Sudir Umar
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Chemistry Education Social Sciences Other

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PENGARUH MODEL GUIDED INQUIRY LEARNING TERHADAP HASIL BELAJAR SISWA KELAS 10 SMA NEGERI 4 HALMAHERA SELATAN PADA MATA PELAJARAN STRUKTUR ATOM Safira Farid; Nur Asbirayani Limatahu; Sudir Umar; Muliadi Muliadi
SAINTIFIK@ Vol 5, No 2 (2020): EDISI OKTOBER 2020
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.402 KB) | DOI: 10.33387/sjk.v5i2.3643

Abstract

Penelitian ini dilakukan untuk mengetahui pengaruh model pembelajaran Inkuiri Terbimbing terhadap hasil belajar siswa kelas X SMA Negeri 4 Halmahera Selatan pada materi struktur atom. Jenis penelitian yang digunakan yaitu penelitian eksperimen dengan desain penelitian Pre-eksperimen One group pretest-postest. Sampel dalam penelitian ini merupakan siswa kelas X IPA-1 SMA Negeri 4 Halmahera Selatan yang berjumlah 20 siswa. Dengan teknik pengambilan sampel yaitu secara Random Sampling. Instrumen yang digunakan dalam penelitian ini yaitu berupan soal essaysebanyak 11 item. Data yang diperoleh selanjutnya dianalisis dengan menggunakan pengujian statistik SPSS 21.0. Hasil analisis menunjukan bahwa terdapat pengaruh model pembelajaran Inkuiri Terbimbing terhadap hasil belajar siswa kelas X SMA Negeri 4 Halmahera Selatan pada materi struktur atom terhadap peningkatan hasil belajar siswa kelas X SMA Negeri 4 Halmahera Selatan sesuai dengan hasil uji statistik thitung > ttabel  atau 7,876 > 1,729 dengan besar peningkatan 43,6 %. Kata Kunci:  Model Pembelajaran Inkuiri Terbimbing, Hasil Belajar Sturktur Atom, Uji Statistik SPSS 21.0
Design and Validation of a Practicum Module for Gravimetric Analysis Techniques in Project-Based Learning Khusna Arif Rakhman; Nurfatimah Sugrah; Ilham S.W. Mauraji; Sudir Umar; Agung Abadi Kiswandono
Orbital: Jurnal Pendidikan Kimia Vol. 8 No. 2 (2024): Orbital: Jurnal Pendidikan Kimia
Publisher : Chemistry Education Department of Education and Teaching Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/ojpk.v8i2.24096

Abstract

Gravimetry is a simple and fast method used to determine the weight percentage of alkaloid content in natural samples when analyzing compound content. Gravimetry is a basic knowledge and skills in analytical chemistry. A student-centered learning approach is needed to acquire integrated chemical laboratory knowledge and skills. Integrated learning outcomes between knowledge and skills can be achieved, one of which is through project-based learning (PjBL). One of the things we report in this article is the development of a practical module based on PjBL. This article reported the research and development (RnD) of a project-based practical module on gravimetric analysis using the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) stages to obtain a valid and reliable practical module. The module's validation was analyzed using content validity with the FGD technique through the assessment of five experts. Validity data analysis used Aiken's and Cronbach's alpha for reliability. This article also reports the results of observations of the PjBL practicum of gravimetric alkaloid analysis by 18 students regarding the clarity of the practicum objectives, content, instructions, and ease of the module in guiding the practicum in the Laboratory. By using the ADDIE development steps, we produced a PjBL practicum module with the validity of the Aiken analysis results showing an index of 0.92, indicating that the module developed was valid, had a reliability of 0.78, and had a practicality percentage of 89.77%. The developed PjBL teaching module has also increased students' motivation and basic chemistry laboratory skills when conducting gravimetric analysis practicum.
Co-Authors Agung Abadi Kiswandono Ilham S.W. Mauraji Khusna Arif Rakhman Muliadi Muliadi Nur Asbirayani Limatahu Nurfatimah Sugrah Safira Farid