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All Journal Journal of Education and Learning (EduLearn) Momentum: Physics Education Journal
Desella Inna Rahmatina
Universitas Negeri Malang
Humanities Education Library & Information Science Physics Social Sciences Other

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Development of problem solving ability test on the work-energy material John Rafafy Batlolona; Wartono Wartono; Sutopo Sutopo; Desella Inna Rahmatina
Journal of Education and Learning (EduLearn) Vol 13, No 2: May 2019
Publisher : Intelektual Pustaka Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.632 KB) | DOI: 10.11591/edulearn.v13i2.12400

Abstract

The purpose of this research is to develop test questions of problem solving ability on work-energy material for high school students class X. This type of research is research and development. The model used in this study is ADDIE with the stages of analyzing, planning, developing, implementing, and evaluating, but this study only up to the implementation stage. The test developed in this research consists of three items of problem solving ability description that is multi context. Validation of item was done by content validation and empirical validation. The results of content validation indicate that the average score of test items is 3,125 with good category. The results of empirical validation indicate that there are two valid questions and one invalid question. Two valid questions have a Cronbach Alpha coefficient of 0.807. The results of the implementation of the test showed that the average student problem solving abilities in Question 1 is 17.41 of a maximum score of 25, the lowest score is 10 and the highest is 23. The results of students in the question number 2 by 16.60 of a maximum score of 25, with the lowest score is 10 and the highest is 22. These results indicate that the test instrument is feasible to use to assess students' problem solving abilities.
Identifikasi kesulitan siswa SMA pada materi usaha-energi Desella Inna Rahmatina; Sutopo Sutopo; Wartono Wartono
Momentum: Physics Education Journal Vol 2 No 1 (2018)
Publisher : Universitas PGRI Kanjuruhan Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.472 KB) | DOI: 10.21067/mpej.v1i1.2240

Abstract

Abstract: This study identified student’s difficulty on doing test about work and energy. This study was conducted on 68 high school students at 11th grade who had took work and energy material. Type of this research was descriptive with survey method. Technique of collecting data was test with 15 items two tier's instruments which have been validated by expert. The student’s reasons in answering were used to identify possible causes of errors. Test result showed that the average student's test score is 50.65 with a scale of 100. Common difficulties for students were applying multiplication of the dot product force acting on objects and the movement objects when the movement of objects is presented through graphs, applying work-kinetic energy theorems, misinterpreting relations of gravity and height of objects on the incline, and determine the graph relation of energy with height object as a description of the movement of objects with parabolic paths and influenced by the external forces of the system. This finding can be used as a reference to overcome student difficulties through appropriate learning strategies. Abstrak: Penelitian ini bertujuan untuk mengidentifikasi kesulitan siswa SMA dalam mengerjakan soal-soal usaha energi. Penelitian dilakukan pada 68 siswa SMA kelas XI yang telah menempuh materi usaha-energi. Jenis penelitian ini adalah deskriptif dengan metode survei. Teknik pengumpulan data yang digunakan yaitu tes dengan instrumen berupa soal pilihan ganda beralasan berjumlah 15 butir yang telah divalidasi oleh ahli. Alasan siswa dalam menjawab digunakan untuk mengidentifikasi kemungkinan penyebab kesalahan. Hasil tes menunjukkan bahwa skor tes rata-rata siswa adalah 50,65 dengan skala 100. Kesulitan yang umum terjadi pada siswa yaitu menerapkan perkalian dot product gaya yang bekerja pada benda serta perpindahan benda jika pergerakan benda disajikan melalui grafik, menerapkan teorema usaha energi kinetik, salah memaknai hubungan usaha oleh gaya gravitasi dengan ketinggian benda pada bidang miring, serta menentukan grafik hubungan energi dan ketinggian yang benar sebagai deskripsi pergerakan benda dengan lintasan parabola dan dipengaruhi gaya eksternal sistem. Temuan ini dapat digunakan sebagai referensi untuk mengatasi kesulitan-kesulitan siswa melalui strategi pembelajaran yang tepat.
Co-Authors Batlolona, John Rafafy Sutopo Sutopo Wartono Wartono Wartono Wartono