This study used a case study methodology to find out and collect information relating to the use of Google Classroom in learning in previous research articles. Based on the results of the information obtained are made in the form of table with the aim to determine the effectiveness of the use of Learning Management System based on Google Classroom in learning and the feasibility of Learning Management System based on Google Classroom as a learning media.Data from previous research results that have been obtained can be concluded that learning used Google Classroom is very effective,, because Google Classroom gets a lot of positive responses from students and other users. The feasibility of Google Classroom as a learning mediashows of excellent validation results, so it can be said to be feasible as a learning media.

This research aims to determine the coefficient of restitution in object experiencing partially elastic collision when the object falls free using the phyphox application on smartphone. In terms of experiment, this experiment was carried out five times  with different temperature. The smartphone is connected on PC through the same wifi network  or using tethering by entering the search address that available on phyphox application. After that, the smartphone placed on the board that used as a base when the object dropped, then the object released from the certain height. Data collecting process started by running the phyphox application through a PC to collect the measurement data. The data collected on smartphone is exported to Ms. Excel to fit the data and then the results are plotted in graphical form. The result of the analysis shows the coefficient of restitution value of the object that had variations based on experiment with each temperatures at 32 oC, 28 oC, 24 oC, 20 oC 18 oC and the coefficient of restitution values are 0.889 ± 0.006, 0.890 ± 0.008, 0.891 ± 0.003, 0.892 ± 0.003 and 0.893 ± 0.003. The result of research shows that the lower of the temperature so theres increasing on the coefficient of restitution. So that the coefficient of restitution has avarage’s value is 0.891±0.002. Keywords: coefficient of restitution ,smartphone, phyphox application

The use of technology is very important in learning in the pandemic era. Various efforts were made to equip teachers to optimize the use of learning media. One of these efforts is to organize training on making interactive quizzes based on information technology which is held at SMP Negeri 1 Jaten. This training aims to provide insight related to learning media so that teachers are able to improve their abilities in making interactive quizzes and have a good impact on the future learning process. The method used in this training consists of three stages, namely preparation, implementation and evaluation.This training was conducted on May 6 – May 7, 2021 and was attended by 32 teachers for grades VII, VIII and IX consisting of subject teachers. The result of this training activity is that the teacher understands the training material well so that all the information obtained can be directly put into practice. Teachers get material that is very relevant to the needs in the classroom and can support learning activities. In addition, teachers get new insights related to learning media that can be applied in preparing interactive quizzes creatively and innovatively.

This study aims to develop a student worksheet based on guided inquiry to support physics learning, especially in experimental activities. This type of research is Development Research using ADDIE (Analysis, Design, Development, Implementation, and Evaluation) models. This research used descriptive analysis by calculating the percentage of validation scores. The product developed was validated by experts (material experts and media experts). The results of the material validation showed 90% of the total score. It means that the worksheet is a very feasible category. The results of media validation also showed 93% of the total score (very appropriate category). As a summary, this student worksheet is very appropriate to support physics experiments. Further innovations can be applied using current information technology for better learning activities.

This study aimed to determine the effectiveness of the contextual approach in improving students' algebraic arithmetic operations. This research is a Classroom Action Research (CAR) conducted in two cycles with each cycle consisting of two meetings. Data collecting techniques conducted in each cycle were tests and observation. The data analysis was performed on students' learning outcomes and the results of observations. Based on the analysis performed in the first cycle, students had poor learning outcomes in algebraic arithmetic operations. After improvements were made in the second cycle, there was an increase in the students’ test results. Furthermore, the observations obtained a percentage increase in student activity between the first cycle and the second cycle. This study shows that the contextual approach is quite effective in improving the understanding of the seventh-grade students in algebraic arithmetic operations.