Physic Education and Technology (PhET) adalah salah satu media pembelajaran yang diciptakan untuk memberikan pengalaman interaktif bagi peserta didik. Penelitian ini bertujuan untuk meningkatkan pemahaman konsep fisika peserta didik dengan menggunakan PhET Simulation. Penelitian ini dilakukan di MTs AT-Taqwa Maumere, dengan sampel 58 peserta didik. Teknik pengambilan sampel pada penelitian ini adalah dengan cara purposive sampling.Jenis penelitian ini merupakan penelitian kuantitatif. Penelitian ini dilakukan dengan metode Quasi Experimen, dengan bentuk Nonequivalent Control Group Design yang melibatkan dua kelompok belajar yaitu kelas eksperimen dan kelas kontrol dimana sampel kedua kelas ini dipilih tidak secara random. Pengumpulan data dilakukan dengan pemberian soal test kemampuan pemahaman konsep. Teknik analisis data menggunakan uji N-gain. Hasil penelitian dengan mengacu pada perhitungan N-gain menunjukan bahwa kelas eksperimen lebih tinggi dari pada kelas kontrol. Peningkatan pemahaman konsep fisika pada kelas eksperimen sebesar 0,62 sedangkan untuk kelas kontrol sebesar 0,13. Berdasarkan hasil perhitungan n-gain dapat dikatakan bahwa pembelajaran dengan menggunakan PhET Simulation dapat meningkatkan pemahaman konsep fisika peserta didik.

The STAD cooperative learning model can support active, independent and responsible learning for students. The application of this model is expected to improve students' critical thinking skills. The purpose of this study was to determine the improvement of students' critical thinking skills using Edmodo-assisted learning models. Edmodo was modified to become a teacher tool to expand learning at home. This research is an experimental study using a pretest-posttest control group design involving 39 students of class VIII MTs At-Taqwa Beru, Sikka, East Nusa Tenggara. Based on the results of the study it was found that the Edmodo-assisted STAD type cooperative learning model can improve students' critical thinking skills.

The purpose of this study is to develop learning animation media on TPACK-based torsion material. Media is created and developed using the Powtoon application. Media development needs to be done based on journal analysis carried out and found that students have difficulty being able to receive lessons in class and one of the reasons is the use of inappropriate learning media. In addition, with the advancement of technology, it is currently encouraging every educator to take part in it. The research method used was R & D (Reserch and Development) with two trial subjects namely material experts and media experts to test the feasibility of the media. From the results of validation, presentations for material experts were 72.6% and 96.4% media experts, and for percentages overall the animation media scored 82% or in the Likert scale in a very good category so the animation media to support TPACK based learning with Powtoon can be applied in learning in class.

In learning mathematics, students often experience mistakes or omissions in solving the questions given both the questions of practice, assignments, tests, and exams. This study aims to determine the student's errors mistakes in solving mathematical problems in the composition and inverse functions in SMA Negeri 1 Maumere. The method used is descriptive qualitative, with X MIPA 4 students' research subjects, amounting to 34 people who were selected based on purposive sampling technique where this subject who gets material on compulsory mathematics, namely the material composition function and inverse function. Data collection procedures are taken through the provision of test questions and interviews whit students. Data analysis includes data reduction, data presentation, and conclusions. This study results can be said that the student's errors in solving mathematical problems in the composition and inverse functions of high, medium, and low ability students make the same mistakes, namely errors in using data, language interpretation errors, and technical errors.

Student learning outcomes are a measure of student success in the learning process in class, and this study aims to determine the quality of student learning outcomes and aspects that affect mathematics learning outcomes in the comparison of trigonometry in a right triangle based on cognitive shutter at SMK Negeri 1 Maumere. Type of qualitative research with qualitative descriptive methods. Research subjects were students of class X DPIB-2 with a total of 34 people. This study uses data collection techniques by giving test questions and interviews. The analysis technique used in this research is descriptive qualitative data reduction, data display, and verification. The results of this study indicate that the learning outcomes of students with a low criterion are sufficient, the criteria are very large in number, the criteria for high are many, very high criteria the number is lacking. While the aspects affecting student learning outcomes are internal aspects and external aspects, internal aspects include students lack of interest in learning, students lack of understanding, memory and numeracy skills, while the external aspect includes family attention and support for students to repeat the material given by the teacher at home.