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This study aims to develop a Student Worksheet (LKPD) on Chemical Bonding assisted by Augmented Reality (AR) based on deep learning and to examine its feasibility, practicality, and effectiveness in improving learning activities and higher-order thinking skills (HOTS) of high school students. The research employed a 4D development model (define, design, develop, and disseminate) using a pretest posttest control group design involving 11th grade students. Research instruments included expert validation sheets, learning activity questionnaires, and HOTS test instruments. Data were analyzed using descriptive and inferential statistical methods. The results indicated that the AR-based LKPD met very feasible and practical criteria based on expert judgment and student responses. Furthermore, there was a statistically significant difference between the experimental and control groups in learning activities and HOTS achievement (p = 0.005). The increase in HOTS scores in the experimental group was categorized as moderate, indicating meaningful learning gains. These findings demonstrate that the AR-assisted Chemical Bonding LKPD is effective as an innovative learning medium for supporting students’ understanding of abstract chemistry concepts and fostering higher-order thinking skills.

Motorcycles are one of the main modes of transportation widely used by the Indonesian people due to their practicality, efficiency, and ability to support daily mobility. However, many motorcycle users complain about the suboptimal engine power, especially when the vehicle is used on extreme terrains outside urban areas, such as uphill roads, rocky paths, or long distances. This situation has driven the development of various innovations in the automotive field to improve engine performance. One widely applied method is the oversize technique on the piston and piston block, which aims to increase the combustion chamber capacity, thereby maximizing the power output. This study aims to analyze the significant comparison of engine performance after the application of the oversize method on the KVY engine type, as well as to examine the factors influencing the optimization of engine performance based on the philosophy and needs of the vehicle owner. The testing method used a dynamometer to measure the increase in torque and engine power. The test results showed that the daily oversize application resulted in a torque increase of 1.19 Nm and a power increase of 0.85 Hp compared to the standard condition. Meanwhile, the oversize for competition needs showed more significant improvements, with a torque increase of 7.97 Nm and a power increase of 8.12 Hp. These findings demonstrate that the oversize method can significantly enhance engine performance according to its intended use.

Indonesian language learning in elementary schools, especially on figurative language, still faces various problems, such as difficult to understand material, limited learning media, and low student interest and understanding. This is also experienced by fifth-grade students of SD 1 Mlati Lor who have difficulty recognizing types of figurative language and understanding their meaning well in context. This study aims to develop an interactive flipbook media about figurative language that highlights the local wisdom of North Sulawesi and test its feasibility and practicality for semantic learning. The method used in this study is research and development (R&D) with the ADDIE model, which consists of analysis, design, development, implementation, and evaluation. The research subjects were fifth-grade students of SD Negeri 1 Mlati Lor. Data collection was carried out through interviews, observations, validation by material and media experts, questionnaires for teachers and students, and learning outcome tests. Data were analyzed using qualitative and quantitative descriptive approaches. The results of the study indicate that the interactive flipbook media inspired by the local wisdom of North Sulawesi was considered very valid by experts. Furthermore, practicality testing demonstrated that teachers and students responded in the "very practical" category, indicating that the media was easy to use and well-received in learning. The application of local cultural elements has been shown to help students understand figurative language concepts more clearly and meaningfully. Therefore, the developed flipbook can be used as an alternative Indonesian language learning medium to improve students' semantic understanding and cultural knowledge in elementary schools.

This study aims to describe the lexical variations that emerge based on gender factor within the sociolinguistic context of SMP Bintang Persada Denpasar. This research employs a descriptive qualitative approach using the observational method and note-taking technique by presenting a list of glosses to 20 eight-grade students, consisting of 10 male and 10 female participants. The lexical data were analyzed using the intralingual and extralingual comparison methods. The findings reveal significant lexical differences between the two speaker groups. Female student tend to use more varied, complete, and expressive lexical forms, including full words and phrasal expressions. In contrast, male students show a tendency to use shorter, more efficient lexical forms dominated by abbreviations and rough expressions. These findings highlight that gender functions as a linguistic marker shaping distinct communicative patterns among adolescents, with female students prioritizing social expression and affection, while male students emphasize practicality and efficiency in language use.

Electronics learning in higher education continues to face various challenges, particularly in the provision of interactive learning media capable of concretely and engagingly visualizing the form, characteristics, and working principles of electronic components. The limitations of conventional learning media often result in abstract learning processes, which in turn lead to a low level of student understanding of basic electronics concepts. This study aims to develop the AMPERE as an innovative and technologically relevant interactive learning medium. The research employed R&D approach using the Borg & Gall model, which includes the stages of needs analysis, design, product development, validity testing, and limited implementation. The AMPERE application was developed using marker based AR technology, in which a smartphone camera detects markers to display and interact with 3D electronic component objects in real time. The results indicate that the AMPERE application achieved a high level of validity, with a score of 0.88 from subject-matter experts and 0.84 from media experts, and was therefore deemed suitable for use as a learning medium. The small-group trial results showed a practicality level of 82.07%, while the practicality test during the implementation stage reached 85.67%. These findings demonstrate that AMPERE is effective in enhancing learning interactivity and assisting students in understanding the form, function, and working principles of electronic components through smartphone-based digital visualization. Theoretically, these results are consistent with constructivist learning theory, which emphasizes active knowledge construction through direct experience and interaction with learning objects.

This study was based on the low ability of third-grade students at SD Negeri 2 Wonorejo to understand syntactic material, particularly the use of conjunctions, due to a lack of interactive and contextual learning media. This study aimed to develop EKUJARSI E-Flipbook learning media based on Kudus local wisdom that has been tested for feasibility and practicality to improve student understanding. The research method used was Research and Development (R&D) with the ADDIE (Analyze, Design, Development, Implementation, Evaluation) development model. The test subjects included subject matter experts, media experts, classroom teachers, and third-grade students. Data collection instruments used validation sheets and user response questionnaires. The results showed that the EKUJARSI media was highly valid for use, as evidenced by a validation percentage of 89.6% from media experts and 86.15% from subject matter experts. The practicality test also showed positive responses, with teachers giving a score of 80% and students giving a score of 85.9%, which is considered very feasible. Specific findings show that the ease of use aspect received a perfect score of 100% from students, indicating that this media is very user-friendly. It is concluded that the EKUJARSI E-Flipbook is feasible and practical to be implemented as an innovative learning media that effectively integrates local cuisine to facilitate understanding of language concepts.

This study aims to develop Google Site-based learning media on Electronic Fuel Injection (EFI) System Maintenance material for class XI students of Automotive Light Vehicle Engineering (TKRO) at SMK Negeri 1 Padang. The background of this study is based on the problems of learning that is still monotonous, less than optimal use of digital technology in the teaching and learning process, and low motivation and independence of student learning. This study uses the Research and Development (R&D) method with a 4-D development model that includes the Define, Design, Develop, and Disseminate stages. The research subjects consisted of two experts, namely media experts and material experts, two subject teachers, and 31 class XI TKRO students. Data collection techniques were carried out through validation questionnaires and practicality questionnaires. The results of the study showed that Google Site-based learning media has a very high level of validity based on the assessment of media experts by 93.33% and material experts by 90.00%. In addition, this media was considered very practical by teachers with a percentage of 94.25% and practical by students with a percentage of 78.2%. Thus, Google Site-based learning media is declared suitable for use as a learning tool to increase learning motivation, student independence, and learning effectiveness in the EFI System Maintenance material in vocational schools.  

Animated video is one of the media that can be used in the learning process. In grade III of Madrasah Ibtidaiyyah Rahmah El-Yunusiyyah Padang Panjang, students experience difficulties in understanding the concept of jama' prayer, and the learning method used by teachers still relies on textbooks without utilizing varied technology-based media. Consequently, many students' scores remain below the minimum mastery criteria (KKM). Therefore, researchers are interested in developing animated videos as learning media to improve students' scores in the subject of fiqh, specifically on the jama' prayer material. This study aims to: (1) describe the development process of animated videos as learning media for jama' prayer material, (2) determine the validity of the animated video development, and (3) assess the practicality of the animated videos. The research employs the Research and Development (R&D) method with the 4D model (Define, Design, Develop, Disseminate) involving 21 students from grade III of MIS Rahmah El-Yunusiyyah as subjects. Research instruments include expert validation sheets, teacher practicality questionnaires, and student response questionnaires. The research findings indicate that the animated video has very high validity based on material experts (98.2%) and media experts (94%), with practicality reaching 100% under the very practical criteria. Additionally, student responses reached 82.86% in the very interesting category. The developed animated video can be categorized as valid, practical, and effective in enhancing students' understanding of jama' prayer material.

This study examines the use of digital Qur’an applications at Pondok Pesantren Al-Asy‘ariyyah Kalibeber by focusing on the relationship between technological practicality and the preservation of the printed mushaf. Employing a qualitative method with a descriptive-analytical approach, data were collected through observation, in-depth interviews, and documentation involving pesantren leaders, teachers, active students, and senior students. The findings reveal that the digital Qur’an is accepted as a supporting learning medium due to its practicality and efficiency, particularly for students with sufficient digital literacy. However, the printed mushaf remains the primary reference in Qur’anic learning as a form of respect for its sacred value, the pesantren’s scholarly tradition, and the limited digital literacy among senior students and teachers. This study demonstrates that the utilization of the digital Qur’an in the pesantren context is selective and contextual, serving as a complementary tool rather than a replacement for the mushaf. These findings indicate that pesantren are capable of responding to technological developments in a balanced and tradition-oriented manner.