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All Journal Jurnal Ilmiah Pendidikan Fisika Jurnal Natural Scientiae (JNS)
Uripto Trisno Santoso
Universitas Lambung Mangkurat
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Energy Immunology & microbiology Materials Science & Nanotechnology Physics

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Profil Keterampilan Pemecahan Masalah Peserta Didik SMP Zakiah Arsyad; Uripto Trisno Santoso; Mustika Wati
Jurnal Ilmiah Pendidikan Fisika Vol 6, No 3 (2022)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jipf.v6i3.6683

Abstract

Keterampilan pemecahan masalah menjadi tuntutan abad 21, namun masih banyak peserta didik yang belum terlatih untuk memecahkan masalah. Maka dari itu penelitian ini bertujuan untuk mendeskripsikan keterampilan pemecahan masalah peserta didik SMP di Banjarmasin. Penelitian dilakukan sebagai studi awal dalam tahapan pertama model 4-D (Define) bersama 20 peserta didik SMP. Data didapatkan dari tes keterampilan pemecahan masalah. Hasil tes keterampilan pemecahan masalah menunjukkan bahwa rata-rata pada tahapan memahami masalah yaitu 21,06 dengan kategori kurang baik, membuat rencana dengan rata-rata 4,72 berkategori tidak baik, melaksanakan rencana dengan rata-rata 3,33 berkategori tidak baik dan mengecek kembali dengan rata-rata 4,17 berkategori tidak baik. Dengan demikian, peserta didik masih belum terampil dalam memecahkan masalah. Sehingga perlu adanya upaya dari guru dan sekolah untuk melatihkan peserta didik memecahkan masalah. Problem-solving skills are the demands of the 21st century, but many students still have not been trained to solve problems. Therefore, this study aims to analyze the problem-solving skills of junior high school students in Banjarmasin. The research was conducted as an initial study in the first stage of the 4-D model (Define) with 20 junior high school students. The data was obtained from the problem-solving skills test. The results of the problem-solving skills test show that the average at the stage of understanding the problem is 21.06 with a bad category, making plans with an average of 4.72 in the bad category, implementing plans with an average of 3.33 in the bad category and checking returned with an average of 4.17 in the bad category. Thus, students are still not skilled in solving problems. So there needs to be an effort from teachers and schools to train students to solve problems.   
Uji Kemampuan Adsorpsi Komposit Keratin Bulu Itik-Polietilena Terhadap Ion Besi(III) Oktavia Hesti Fauzy; Uripto Trisno Santoso; Umi Baroroh Lili Utami
Jurnal Natural Scientiae Vol 2, No 2 (2022): November 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jns.v2i2.6624

Abstract

Research on the adsorption of iron(III) ion using an adsorbent from duck feather-polyethylene composite has been studied. This study aimed to determine the optimum pH conditions and the optimum contact time required in the iron(III) ion adsorption process. Optimum pH and contact time are then measured using AAS to determine the amount of iron(III) ion adsorbed with the duck feather-polyethylene composite adsorbent. The determination of the optimum pH was carried out with pH variations which are 2, 3, 4, 5, 6, 7, and 8, while determination of the optimum contact time was carried out with contact time variations which are 40, 60, 80, 100, 120, 140, and 160 minutes. The result of this research showed that optimum conditions for iron(III) ion adsorption at pH 6 and contact time at 80 minutes, which each adsorption capacity are 68.33% and 79.78%.
Co-Authors Mustika Wati Oktavia Hesti Fauzy Umi Baroroh Lili Utami Zakiah Arsyad