Nadhiroh, Nuraini
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IDENTIFIKASI MISKONSEPSI DAN KONFLIK KOGNITIF FISIKA: KASUS TERKAIT PERUBAHAN KONSEPTUAL Hidayatullah, Zul; Jumadi, Jumadi; Nadhiroh, Nuraini; Kartika, Endah; Nuha, Azizah Ainun; Erlangga, Sony Yunior
EDUSAINS Vol 12, No 1 (2020): EDUSAINS
Publisher : Faculty of Education and Teacher Training, UIN (State Islamic University) Syarif Hidayatul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/es.v12i1.13504

Abstract

IDENTIFICATION OF MISCONCEPTION AND COGNITIVE CONFLICT OF PHYSICS: A CASE RELATED TO CONCEPTUAL CHANGEAbstractMisconceptions still often occur when learning physics. This study aims to identify students' misconceptions and their relationship with cognitive conflict in terms of conceptual change. This research used mixed methods explanatory design methods. The subjects in this study were three students from SahabatQu High School, Yogyakarta. The students studied were categorized into three, namely low, medium, and high ability students. Information related to student abilities is obtained from physics teachers and student learning test results. A conceptual change interview guide, conceptual change observation sheet, cognitive conflict questionnaire, and parabolic motion material misconceptions tests were used as supporting instruments to obtain the desired results in research. The learning process uses a PhET simulation. The results showed that high, medium and low ability students still had misconceptions when learning parabolic motion material. Cognitive conflict in high, medium and low ability students is included in the low and moderate categories with a percentage of 8.33% - 41.67%. All students have not been able to experience the four thought processes so that there are still misconceptions on some topics such as the highest point and the farthest distance based on the projectile motion's elevation angle. AbstrakMiskonsepsi masih sering terjadi pada saat pembelajaran fisika. Tujuan penelitian ini adalah mengidentifikasi miskonsepsi siswa dan hubungannya dengan konflik kognitif ditinjau dari perubahan konseptual. Penelitian ini menggunakan metode mixed methods explanatory design. Subjek pada penelitian ini adalah 3 siswa yang berasal dari SMA Sahabatqu, Yogyakarta. Siswa yang diteliti dikategorikan menjadi 3 yaitu siswa berkemampuan rendah, sedang, dan tinggi. Informasi terkait kemampuan siswa diperoleh dari guru fisika dan hasil tes belajar siswa. Pedoman wawancara perubahan konseptual, lembar observasi perubahan konseptual, angket konflik kognitif, dan tes miskonsepsi materi gerak parabola dijadikan instrumen pendukung untuk mendapatkan hasil yang diinginkan dalam penelitian. Proses pembelajaran menggunakan simulasi PhET. Hasil penelitian menunjukkan bahwa siswa berkemampuan tinggi, sedang, dan rendah masih memiliki miskonsepsi pada saat pembelajaran materi gerak parabola. Konflik kognitif pada siswa berkemampuan sedang dan rendah termasuk dalam kategori rendah dan siswa berkemampuan tinggi termasuk dalam kategori sedang. Seluruh siswa belum mampu mengalami empat proses berpikir sehingga masih menyisakan miskonsepsi pada beberapa submateri seperti titik tertinggi dan jarak terjauh berdasarkan sudut elevasi gerak parabola.
KARAKTERISTIK PAPAN KOMPOSIT BERBAHAN KOMBINASI SERAT RAMI DAN SERAT BATANG PISANG Hidayatullah, Zul; Suparno, Suparno; Nadhiroh, Nuraini
Jurnal Riset Fisika Edukasi dan Sains Vol 7, No 2 (2020): Jurnal Riset Fisika Edukasi dan Sains
Publisher : Universitas PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/jrfes.2020.v7i2.4549

Abstract

This study aims to determine the feasibility of a composite board made of hemp fiber and banana stem fiber with Poly Vinyl Acetate (PVAc). Making the composite board begins with the preparation, drying, weighing the raw materials according to the weight ratio, mixing, pressing and cutting the finished composite board according to the size required in the test standard. Composite board characteristic testing includes: moisture content, thickness swelling, density, flexural strength and tensile strength of the composite papn. The test results on the composite showed that the more the value of the banana stem fiber used as a combination for the hemp fiber, the more the feasibility value of the composite board did not meet SNI standards. However, for the bending test, all categories of fiber combinations were not feasible because the sample specimens were not stiff due to PVAc which only functions as an adhesive (not a reinforcement).