Pembelajaran Blended Learning dengan Metode Praktikum untuk Meningkatkan Hasil Belajar Fisika Siswa SMK

The Covid-19 pandemic and government regulations regarding the Enforcement of Restrictions on Community Activities in Indonesia have caused face-to-face learning activities not to be fully implemented. One way to be used as an alternative is through blended learning, which combines online and offline learning activities. This study aims to test vocational students' learning outcomes through blended learning with practicum methods. The population of this study was all students of class XI TKJ of SMK Negeri 1 Liwa, and the samples selected by purposive sampling technique were students of class X-TKJ1 as the control class and students of X-TKJ2 as the experimental class. This study used a pretest-posttest control group design. The two sample classes were given a pretest and posttest, which were then analyzed to determine the N-gain for each class. The results showed differences in student learning outcomes in the experimental and control classes with N-gains, respectively, 0.72 and 0.40. The analysis results showed that the average increase in student learning outcomes in the experimental class was higher than in the control class. Based on the results of data analysis, it can be concluded that blended learning with practicum methods can improve student learning outcomes.

Pengembangan Buku Ajar Simulasi dan Pemodelan Fisika dengan Unity3D Berbasis Self Regulated Learning

This study aims to develop a simulation and modeling physics textbook assisted by Unity3D software with a self-regulated learning approach. This research uses Development and Research method through 4D Model. The definition stage is carried out by determining the characteristics of the textbook that will be developed through the initial study. The design stage is done by choosing the format and design of the textbook to produce the first correction (draft). The development stage is carried out to have the second draft, third correction, and the final product of the textbook. The second correction is obtained through the revised expert validation results that have been recommended. The third correction is the acquisition of small group test results by taking them randomly. Based on the results of field tests on students who are taking Physics Simulation and Modeling courses, the final product of the textbook is obtained. One of the textbook features and tools developed is the project assignment feature and the video tutorial tool. Based on the validation of the textbook and its supporting devices, the criteria are very feasible and ready to be used and can guide student learning independently through the features in the textbook. The development of this textbook is expected to assist in developing simulations and modeling in physics and other fields of science, such as engineering and health.

Pengembangan Alat Praktikum Tumbukan Menggunakan Mikrokontroler, Sensor Ultrasonik, dan Lintasan Air Track

Momentum is one of the physics topics that students can better understand with practical activities. The problem found in using the ticker timer as a speed gauge in the collision practicum is that the measurement process interferes with the system being measured. This research develops a collision practicum tool using a microcontroller and ultrasonic sensor as a distance recorder. The glide track used is an air track. Based on the research conducted, it can be concluded that the collision practicum tool with a microcontroller and a glide track in the form of an air track can work well. The distance recorder or DRD is capable of recording distances every 0.2 seconds. The ultrasonic sensor as a gauge has an accuracy of 99.6% and a relative error of 0.56% for sensor 1. Meanwhile, sensor 2 has an accuracy of 99% and a relative error of 0.85%. Through the distance data obtained, it is possible to obtain an increase in momentum before and before the collision.

Media Permainan Jumanji FlashCard untuk Pembelajaran Fisika SMP Materi Pengukuran

This study aimed to develop a Jumanji flashcard game media for valid and practical media. Research and development methods are used in this study. The research phase starts from potential and problem analysis, data collection phase, product design phase, design validation phase, design revision phase, trial and product revision phase. Interview sheets, questionnaires and documentation obtained research data. Data collection techniques used interview sheets, material expert validation questionnaires, media expert questionnaires and student response questionnaires. The results obtained are the feasibility of the Jumanji flashcard game based on the assessment of material experts with a percentage of 88.67%, media experts 90%, and student responses 92% in the small group trial obtained very good category. Aspects of material validation consist of accuracy, depth and completeness of the material. Aspects of media expert validation consist of function, design and quality of media. Student responses related to the practice of the Jumanji flashcard game media. The Jumanji flashcard game media developed was feasible and could be used in physics learning for junior high school students for measurement.

Pengembangan Bahan Ajar Fisika Berbasis Way of Investigating untuk Meningkatkan Keterampilan Proses Siswa SMK

Process skills are very important in learning. Process skills can be approached by investigating a phenomenon. This research aims to develop way of investigating physics teaching materials to improve students' process skills. This study uses a Research and Development (RD) design. Data collection methods used are tests, observations, questionnaires, and documentation. The research sample was taken by purposive sampling. Based on data analysis, it is known that the teaching materials developed are categorized as very valid and suitable for use with an average value of 89.97. The readability of teaching materials is in the good category with a value of 77.88. The process skill gain test in the experimental class of 0.303 is in the medium category, while in the control class of 0.297 is in the low category. Student responses to the developed teaching materials are very good, with an average percentage of 86.65%. The results of this study indicate that way of investigating teaching materials are appropriate to be used in physics learning, especially to improve students' process skills.

Analysis Students' Misconception in Optical Material Using Three Tier Multiple Choice Diagnostic Test

This study aims to analyze the misconceptions of Senior High School students and their cause in Optical material. The data collection techniques used in this research are tests and interviews. The three tiers multiple-choice diagnostic test used consists of three levels, the first is a question, the second is the reason for the answer, and the third is the student's confidence level. The data analysis techniques used in this research are multiple-choice scoring analysis without fining and student's misconceptions level's percentage analysis. The lowest misconception level is 10.4% on the light refraction indicator, and the highest is 41.6% on the distance and characteristic of the image on the concave mirror. The sources of students' misconceptions found in this study are the students themselves, books, friends, teachers, students' daily experiences, and the Internet.

Potensi Limbah Ampas Teh sebagai Alternatif Material Akustik Ramah Lingkungan

The research aims to determine the potential of tea waste as an environmentally friendly alternative acoustic material. The acoustic material is made by mixing tea waste powder with fox glue and water, formed, and dried. The acoustic material was made into six samples with different compositions of tea wastes, that were 20 g, 40 g, 60 g, 80 g, 100 g, and 120 g. The value of the effectiveness of noise reduction and the coefficient of sound absorption, both were obtained the most optimum in sample 6 with a composition of 120 g, that were 10.1% and 0.07497 dB. The value of both increases with the increase of the composition of the tea wastes in the acoustic material.

Penerapan E-Learning Menggunakan Media Edmodo dalam Pembelajaran Fisika Berbasis Nilai Karakter untuk Meningkatkan Hasil Belajar pada Konsep Usaha dan Energi

This study aims to test the application of e-learning using edmodo media in learning physics based on character values to improve student learning outcomes in work and energy materials. This type of research is an experiment, using the One Group Pretest-Posttest Design design. The instrument used in this study was a pretest and posttest questions consisting of 12 question numbers to test the improvement of student learning outcomes using e-learning using edmodo media. The pretest value data normality test using the Kolmogorov-Smirnov test resulted in 0.035, and for the posttest value obtained 0.457. The results showed an increase in student learning outcomes with an average gain value of 0.82 which is included in the high criteria. The results of the data hypothesis analysis were obtained from the pretest and posttest values based on the output "statistical test" known to Asymp. Sig (2-tailed) is 0.00. (0.05). Based on the results of the hypothesis test, it can be concluded that there is an increase in student learning outcomes by using e-learning using edmodo media in physics learning based on character values on business and energy materials.

Efektivitas Penggunaan Seleksi Ciri CFS pada Klasifikasi Ciri Bentuk Nodul Kanker Payudara dengan Citra Ultrasonografi

The implementation of nodule shape characteristics is one of the parameters used in determining breast cancer malignancy. Mathematical calculations are used as a second decision to strengthen radiologists in determining breast cancer malignancy using ultrasound images (USG). The method used in this research is to filter ultrasound images that contain speckle noise, then continue the segmentation process, extracting shape features, selecting shape features, and classifying them. The feature selection process using Correlated based Feature Selection (CFS) is used to select the dominant shape features in the image. The classification results obtained show that the results of feature selection using CFS can improve the results of image accuracy, sensitivity and specificity, so as to be able to better distinguish the characteristic shape of the cancer nodule.

Penerapan Model Pembelajaran Problem Based Learning untuk Menganalisis Keterampilan Pemecahan Masalah Siswa SMP pada Materi Cahaya

The challenge of 21st century education is to prepare human resources who are required to have skills, one of which is problem solving. The Problem Based Learning (PBL) learning model is considered effective in training problem-solving skills because it has constructivist characteristics with science learning. The purpose of this study was to analyze students' problem solving skills in the Light material through PBL learning. The research method used is quantitative with descriptive analysis. The research sample was 22 Tanah Merah Integrated Junior High School students grade IX. The data collection technique used the observation sheet of problem solving skills. The results showed that there was an increase in students' problem solving skills from the first to the third experiment. The increase with the highest percentage was in the third experiment with indicators of problem solving/ investigation by 90.9%. The average data for each problem solving indicator shows that students can understand the problem by 80.78%, collect data by 69.63%, carry out problem solving/investigation by 78.46%, and make conclusions by 66.67%. These results indicate that the Problem Based Learning model can be used as a science learning construction in improving problem solving skills.