This study aims to analyze the effect of the Sosio-Scientific Issues (SSI) based Problem Based Learning (PBL) on increasing scientific literacy and problem-solving skills of junior high school students. The type of research is Quasi experiment with Nonequivalent Control Group Design. The population included class VII Junior High School of 6 Yogyakarta that consisting of seven classes in the 2019/2020 school year. The sample is determined by the Purposive Sampling technique. The research instruments were pretest and posttest questions of scientific literacy and students' problem-solving skills. Hypothesis testing is done with MANOVA and effect size calculation to find out how much influence is given. Based on the MANOVA test, the Sig value is 0,000 that <α (0.05) so that Ha is accepted (H0 is rejected). As for the calculation of the effect size obtained a score of 0.897 (high enough), which means that SSI-based PBL has a significant effect on increasing scientific literacy and a score of 1,027 (high), which means that SSI-based PBL has a high effect on improving students' problem-solving skills. Based on these results it can be concluded that PBI based on SSI affects the increasing scientific literacy and problem-solving skills.

The Covid-19 pandemic has impacted various fields, especially education, namely the implementation of distance learning. One of the activities carried out by teachers is the implementation of independent practicum by students so that teaching and learning activities continue to run even though the students are at home. This study aims to analyze the motion of jumping cats using a tracker application that can be used as a practicum activity independently in science subjects of motion material in grade VII by using cats that are in the environment of learners as the subject of the study. This research method uses a hands-on experimental approach by taking videos of jumping cats' motion and processing them with a tracker app. The results of data processing with the help of tracker application are processed by using Microsoft Excel program so that obtained KD, KB, TB, K and E relationship graphs cat jump has a constant or stable speed indicated by linearity graphs. In addition, data processing using a tracker application is more accurate and consistent compared to the acceleration value by manually calculating so that it can be concluded the use of application-assisted jumping cat video analysis is worth using in science learning.

In the process of learning physics, experiments are needed that can help someone in gaining a deeper understanding of learning physics concepts and using technology in the learning process, especially learning sound waves. In this study, the aim is to be able to analyze the sound frequency with the help of Audacity software. Subjects used are 5 different cat sounds. The implementation of this research uses several tools such as a microphone, Audacity software on a laptop, and 5 cat sounds. This experiment was carried out by bringing the micro hope closer to the cat with 5 cm so that the sound was captured by the microphone which would later be transferred to the laptop and read by the audacity software. Furthermore, the data recorded in audacity were analyzed. From the results of the study, it can be said that a tool that can be used in practicum and can read and capture sound waves is effectively used in analyzing sound frequency, spectrum in the application of sound learning so that it can be used as one of the learning media in practicum on sound wave material at Junior high school.

Experiments have been carried out on determining the value of the moment of inertia of a hollow cylinder. This study aims to analyze the value of the moment of inertia with variations in the radius of the hollow cylinder using the Phyphox Application (Physical Phone Experiment). This research is experimental. The tools and material used area 1-meter longboard, three hollow cylinders with different radius sizes but the same mass, smartphone, laptop, caliper, and balance.The experiment of rolling motion on a hollow cylinder on an inclined plane is assisted by data processing in a Phyphoxapplication. From the experiment, the result of the moment of inertia value from data processing is 4.89 x 10-4kg.m2, 9.82 x 10-4kg.m2, 12.4 x10-4kg.m2. This research can be used as a teacher reference in teaching the topic of moments of inertia in physics learning at school. This is highly recommended for distance learning during the pandemic so that mastery of concepts is maximized. Further research is suggested that it can be tried to use other materials with other types of rigid bodies to find the moment of inertia. Further references on digital application media to assist learning are also needed considering the dynamic development of technology.

The purpose of this study was to examine students’ reading habits and the factors that influence their desire to read English texts. A total of thirty-four EFL students were chosen. A qualitative descriptive approach was used. A questionnaire and interviews were used to gather information. The study’s findings revealed that the students had a strong desire to read. Several factors influenced students’ interest, including their effort in reading, their motivation and assumptions about reading, all of which were categorized as at ‘high’ levels. The motivation of students had a significant impact on their desire to read. The desire to learn new things about interesting topics became the primary motivator for students to read. Given the importance of reading, it is critical to prepare an engaging reading text as well as engaging teaching methods to pique students’ interest in reading. Keywords: Students’ Interest, Factor, Reading English Texts