This study aims to determine the implementation of the direct instruction model based on interactive multimedia and the lecture model as well as the differences in the improvement of students' cognitive learning outcomes after the two models are applied to the material of effort and energy. The method in this study uses a quasi-experimental method, with a Noneequivalent Control Group design. The research sample consisted of two classes, namely class X-IPA 1 as the experimental class and class X-IPA 2 as the control class, each consisting of 20 students. Data on the implementation of learning were obtain-ed through observation sheets and students' cognitive learning outcomes were obtained through multiple-choice tests. The data analysis technique used the calculation of the observation sheet, N-gain, and t-test. The results showed that the average percentage of all meetings on the implementation of learning in the experimental class was 82.78% with very good interpretation and 71.85% in the control class with good interpretation. The increase in students' cognitive learning outcomes in the experimental class was 0.58 in the medium category and in the control class was 0.29 in the low category. The results of hypothesis testing using an independent sample t-test showed the value of tcount (3.56) > ttable (2.02). The results showed that there were differences in the cognitive learning outcomes of students who studied with an interactive multimedia-based direct instruction model and lecture model. Thus, the interactive multimedia-based direct instruction model is better in improving students' cognitive learning outcomes in the matter of effort and energy. This study could be implemented in schools with proper or non-proper laboratory facilities for supporting the learning of physics.
Dalam kehidupan sehari-hari, banyak peristiwa Gerak Melingkar Beraturan yang dapat kita temui. Dalam penelitian ini, kami mencoba untuk membuat alat peraga sederhana yang terkait dengan hubungan roda-roda dari alat dan bahan yang dapat kita temui dalam kehidupan sehari-hari. Tujuan penelitian ini adalah membuktikan hubungan roda-roda menggunakan aplikasi tracker. Metode penelitian yang digunakan adalah eksperimen dengan membuat alat peraga sederhana yang dianalisis melalui video menggunakan aplikasi tracker. Hasil analisis menunjukkan bahwa roda-roda yang dihubungkan dengan tali memiliki kecepatan linear yang sama, akan tetapi untuk roda-roda sepusat kecepatan angularnya berbeda. Hasil penelitian ini dapat dikembangkan dengan menggunakan alat dan bahan yang lebih baik dari yang kami gunakan.
Optical instruments are one of the basic subjects in physics. The use of a very wide range of optical instruments in life creates a demanding environment so that students have adequate skills. This research aims to develop worksheets that can support student skills. The worksheet prepared in the form of a learning tutorial is expected to improve higher-order thinking skills. This study uses a 4D development model (Define, Design, Development, Dissemination) with the stages of implementation to Development. The results showed that there was a significant increase in students” higher-order thinking skills. The student also stated that the worksheets developed had an attraction with a percentage of 79.6% for the implementation aspect, 74.2% for the language aspect, 82.1% for the design aspect, and 75.3% for the acceptance aspect.
Tujuan dari penelitian ini adalah untuk menentukan kompetensi PCK dengan model Shulman guru fisika berdasarkan pengalaman mengajar. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan analisis wacana. Subyek penelitian adalah dua guru fisika di sekolah menengah. Hasil penelitian menunjukkan bahwa guru fisika yang memiliki pengalaman mengajar lebih lama lebih fleksibel, terfokus pada kedalaman materi dan lebih bervariasi dalam menggunakan model pembelajaran, sedangkan guru dengan pengalaman mengajar yang buruk fokus pada kedalaman materi. Berdasarkan hasil ini dapat diketahui karakteristik mengajar guru berdasarkan pengalaman mengajar. Studi ini berguna sebagai rekomendasi bagi para pemangku kepentingan untuk menentukan sejauh mana integrasi kompetensi pedagogis dan konten dari masing-masing guru.
This study aimed to determine the implementation of physics learning with the Concrete Representational Abstract (CRA) approach on the heated material and the improvement of students' problem-solving skills using the CRA approach on the heated material after learning. The population of this research is all class VII in one Madrasah Tsanawiyah in the Majalengka district. the research sample is class VII-B with 20 students. The sample used a simple random sampling determination technique. The research method used is a pre-experimental design with one group pretest-posttest design. The data on the results of the implementation of learning with the CRA approach were obtained using an observation sheet, while the data for improving the problem-solving skill was obtained through an essay test of five questions. The study results for three meetings showed that the activities of teachers and students using the CRA approach had increased, with an average teacher activity of 81.37% in the excellent category and student activities of 77.15% in the excellent category. There is an increase in the student's KPM on heat material with an average N-Gain value of 0.71, which is in the high category. The normality test results showed that the pretest and posttest data were normally distributed, so the t-test was used to test the hypothesis. The results obtained are tcount (25.58) > ttable (1.73), which means Ho is rejected, and Ha is accepted. Thus, the student's problem-solving skill increases using the CRA approach to the heated material.
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