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Dea Debora Losoh; Jefry Jack Mamangkey; Meity N. Tanor

Jurnal Pendidikan Kimia, Fisika dan Biologi 2025 Asosiasi Riset Ilmu Pendidikan Indonesia

Biology education requires a learning strategy that can improve conceptual understanding while developing students' critical thinking skills. This study aims to analyze the influence of the Project-Based Learning (PjBL) learning model on the learning outcomes of class X students on biodiversity materials at SMA Negeri 1 Melonguane. The research uses a quasi-experimental method with a Pretest-Posttest Control Group Design, involving two classes, namely the X-A experimental class taught using the PjBL model with a mini ecosystem project, and the X-D control class. The control class is taught conventionally. The analysis results showed a significant increase in the posttest score of the experimental class with an average of 79.33 compared to the control class with an average of 73.39. These findings indicate that applying the PjBL model effectively creates active learning, increases student engagement, and develops problem-solving skills and creativity. The lower variability of scores in the experimental class showed that PjBL could accommodate differences in students' abilities. Project-based learning also arouses students' motivation and confidence, making Biology learning more contextual and meaningful. The implications of this study show that applying the PjBL model can be an alternative to Biology learning strategies to improve learning outcomes while supporting the development of 21st century skills. This research enriches the literature on Biology learning innovations. It opens opportunities for further studies related to the application of PjBL to other materials or long-term impact analysis on students' academic achievements.

Minkha Lailatus Sa'diyah; Nida Dhiyaul Auliyah; Ayu Dewi Nafisatul Khofifah; Fina Fakhriyah; Erik Aditia Ismaya

Jurnal Insan Pendidikan dan Sosial Humaniora 2025 International Forum of Researchers and Lecturers

This study examines the effectiveness of the Problem-Based Learning (PBL) model in improving elementary school students’ learning outcomes by reviewing 15 national journal articles published between 2018 and 2024. The results show that PBL significantly enhances students’ abilities in cognitive, affective, and psychomotor domains, with improvements ranging from 7.1% to 83.3%. PBL encourages students to think critically, participate more actively in learning, and develop problem-solving skills through real and relevant situations. However, its implementation still faces several challenges, such as limited teacher training, inadequate facilities, and difficulties in shifting from conventional methods to this new approach. Based on the analysis, three main factors determine the success of PBL: appropriate learning design, the teacher’s ability to guide the PBL process, and the availability of supporting learning resources. The most significant positive impacts are seen among fifth-grade students and in schools located in the Java region. In conclusion, PBL is highly effective when supported by proper teacher training and adaptation to field conditions. Therefore, further teacher development programs and additional research on the long-term effects of implementing this model are strongly recommended.

Irma Yunita; Hendra Pratama

SOSIAL: Jurnal Ilmiah Pendidikan IPS 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

Learning media are physical tools that deliver information or learning materials to students. Educational videos have become one of the aids used in teaching and learning activities. These videos can support the learning process by conveying materials through the use of technology. Therefore, the researcher was interested in developing a medium that can be both heard and seen by students to help them better understand the subject matter. This study employed a Research and Development (R&D) approach using the Borg & Gall development model, which consists of ten development steps. The development process included initial information gathering, planning, initial product development, expert validation tests, initial product revisions, small-scale testing, second product revisions, large-scale field testing, final product refinement, and product dissemination. The results showed that the validity test of the learning media yielded a percentage of 94% from media experts, 96% from subject matter experts, 94% from language experts, and 94% from teachers. Meanwhile, the product effectiveness test using a Paired Sample T-Test showed a significance value of 0.000, which is lower than the threshold of 0.05. This indicates that the alternative hypothesis is accepted, proving a significant difference in student learning outcomes before and after using the educational video. Therefore, it can be concluded that the educational video on "Human Needs and Resource Scarcity" for Grade VII Social Studies is valid according to experts and effective in improving student learning outcomes.

Septa Aryanika

Jurnal Ilmuan Bahasa dan Sastra Inggris 2025 Asosiasi Periset Bahasa Sastra Indonesia

This research aims to explore students’ perceptions of the use of e-learning in English teaching activities. The study was conducted to understand how students respond to and engage with digital learning platforms during their English classes, especially in the context of increasing reliance on online education. Using a qualitative approach, data were collected through questionnaires  from college students. The findings reveal that most students perceive e-learning as a helpful tool that offers flexibility, access to various resources, and opportunities for independent learning. However, challenges such as lack of motivation, technical issues, and limited interaction with teachers were also identified. Overall, while students acknowledged the benefits of e-learning in enhancing their English skills, they also emphasized the importance of combining it with traditional face-to-face instruction for more effective learning outcomes. This study highlights the importance of improving digital infrastructure and instructional design to ensure that e-learning is both effective and engaging in English education

Sari Warassati; Sri Haryanto; Salis Irvan Fuadi

Reflection : Islamic Education Journal 2025 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

Education serves as a cornerstone in the learning process of students to enhance intelligence, develop skills, and foster moral character in advancing the nation. Islamic Religious Education and Character (Pendidikan Agama Islam dan Budi Pekerti) plays a vital role in helping students shape noble character, cultivate responsibility, and behave in accordance with the values of Islamic faith. In this modern era, the teaching of Islamic Religious Education and Character faces various challenges that hinder the learning process. Therefore, teachers have an essential role in guiding, educating, and directing students to develop their cognitive, affective, and psychomotor abilities to achieve effective learning outcomes. This study aims to: (1) identify the problems faced in the teaching of Islamic Religious Education and Character; (2) explore the efforts or roles of Islamic Religious Education teachers in addressing these problems; and (3) examine the supporting and inhibiting factors that affect the role of teachers in overcoming the challenges of teaching Islamic Religious Education and Character at SMPN 3 Kalikajar. This research employed a qualitative method with a field research approach. Data were collected through interviews, observation, and documentation techniques. The findings of the study indicate that: (1) the problems in the teaching of Islamic Religious Education and Character at SMPN 3 Kalikajar include students’ low ability in reading the Qur'an, moral degradation, limited learning time allocation, and the diversity of students’ religious understandings; (2) the efforts or roles of Islamic Religious Education teachers in overcoming these problems include the use of active, innovative, and creative learning strategies, utilization of technology and digitalization, preparation of systematic teaching modules, implementation of learning evaluations, collaboration with fellow teachers to solve unresolved issues, involvement of parents, and reinforcement of religious values through Madrasah Diniyah programs; (3) the supporting factors include the shared Islamic background among students and the availability of adequate facilities and infrastructure, while the inhibiting factors are generally insignificant and mainly technical or situational in nature.

Puspita Lianti Putri; Riska Nadiya Salsebela

ARDHI : Jurnal Pengabdian Dalam Negri 2025 Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

This community service activity aimed to introduce and strengthen the understanding of sociopreneurship among students of SMA Islam Andalusia Kebasen through an experiential learning approach. The initiative responded to the need for youth empowerment programs that combine entrepreneurial skills with social responsibility, particularly those grounded in Islamic values. The one-day training was designed to be interactive and engaging, incorporating inspirational dialogues with practitioners, interactive simulations, role-plays, and value reflections. These methods were intended to create an immersive learning experience, enabling students to connect theory with real-world application. A total of 50 students participated in the program. The training focused on three main objectives: (1) developing the ability to identify and analyze social issues in their community, (2) designing solutions through the creation of social enterprises, and (3) integrating Islamic values into business practices to ensure ethical and sustainable entrepreneurship. Evaluation was conducted using pre- and post-training assessments, observation, and participant feedback. The results indicated that 70% of participants demonstrated a strong understanding of the concept of sociopreneurship after the training. Additionally, 76% successfully integrated Islamic values into their proposed business ideas, while over 60% were able to design simple but feasible social enterprise concepts addressing real social problems. Participants also reported increased awareness, empathy, creativity, and leadership skills as outcomes of the activity. The findings highlight that experiential learning-based sociopreneurship training is an effective method for cultivating youth’s capacity to initiate social change through entrepreneurial action. This program not only enhanced students’ knowledge and skills but also inspired them to become agents of positive transformation in their communities. It is recommended that schools establish follow-up initiatives, such as sociopreneur clubs, mentoring schemes, and project incubation programs, to ensure the sustainability and further development of students’ social enterprise ideas.

Muhammad Zaenuri; Ridho Gata Wijaya

International Journal of Health and Social Behavior 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

Tarakan City as an archipelago with high maritime activity has a significant risk of water accidents, yet students' swimming skills are still low. This study aims to: (1) evaluate the context of swimming learning in the PJOK curriculum, (2) assess input readiness (teachers, facilities, costs), (3) analyze the learning implementation process, and (4) measure learning outcomes related to student skills and safety. The research used a descriptive qualitative approach with the Context, Input, Process, Product (CIPP) evaluation model. Data sources include principals (4 people), physical education teachers (4 people), and students (16 people) from four junior high schools in Tarakan City. The research instruments were semi-structured interview guidelines, observation sheets, and curriculum document analysis. Data collection techniques were conducted through participatory observation, in-depth interviews, and documentation studies. The data were analyzed qualitatively using cost and benefit analysis techniques to identify the suitability of the program to the needs. The results show that the context of swimming learning is in accordance with the curriculum, but the swimming pool facilities depend on public facilities with limited access. The learning process is in accordance with the lesson plan, but the practice time (2 times/semester) is not sufficient to master the skills. Product evaluation results indicated a good understanding of water safety theory, but low practical swimming skills. Recommendations: (1) Increased frequency of swimming practice, (2) collaboration with local government for the provision of school swimming pools, and (3) teacher training in adaptive teaching methods for beginner students.

Ula Na’matul Afifah; Mulis Mulis

Jurnal Riset Rumpun Ilmu Bahasa 2025 Pusat riset dan Inovasi Nasional

Low student interest in learning English remains a challenge in many Islamic senior high schools, particularly in rural areas where teacher-centered instruction is still dominant. One strategy proposed to address this issue is the Jigsaw method, a cooperative learning approach that emphasizes student collaboration, responsibility,p and peer teaching. This classroom action research was conducted at Madrasah Aliyah Al-Khoirot to examine the effectiveness of the Jigsaw method in increasing students’ interest in learning English, specifically in descriptive text material. The participants consisted of 31 eleventh-grade students, and the study was implemented in two cycles following the Kemmis and McTaggart model. Data were collected through observation, questionnaires, interviews, and tests. The findings showed that the Jigsaw method significantly improved student engagement and learning outcomes. The percentage of students who achieved the minimum passing grade (KKM) increased from 35.48% in the pre-cycle to 77.42% in the second cycle. Additionally, 86.4% of students responded positively to the use of the Jigsaw method, citing increased motivation, understanding, and cooperation. Observation results also revealed active participation, especially in peer explanation and group discussions. Based on these findings, the Jigsaw method is considered effective in fostering student interest, promoting active learning, and creating a more interactive classroom environment. It is therefore recommended as an alternative strategy to enhance English learning motivation in Islamic senior high school settings.

I’anatul Ashriyah; Umi Mahmudah

Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study aims to develop learning media based on the Wordwall application in mathematics learning for grade 3 at MI Salafiyah 1 Kauman. The background of this study is the low interest and motivation of students in participating in mathematics learning, which is caused by less interesting learning methods and the lack of use of interactive media. By utilizing the Wordwall application, it is expected to increase student involvement through fun educational games. The method used in this study is Research and Development (R&D) with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The development process begins with needs analysis, learning media design, media development using the Wordwall application, media implementation in learning, and evaluation of the effectiveness of the media developed. The results of the study showed that the Wordwall-based learning media developed had high validity with an average score of 90% from material and media experts. The practicality of the media was also obtained with an average score of 85% from teachers and students. The trial of media implementation in mathematics learning showed an increase in student motivation and learning outcomes. So, students will be more active in participating in learning and show a better understanding of the material being taught. Thus, Wordwall-based learning media has proven effective in increasing the motivation and learning outcomes of grade 3 students at MI Salafiyah 1 Kauman.

Nur Aisyah; Rizka Ridha Ruslan; Indah Viqrianti Ramli; Rahmah Musda; Azwan Anwar

International Journal of Science and Mathematics Education 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study examined the effectiveness of applying the Logan Avenue Problem Solving (LAPS-Heuristic) learning model on mathematics learning outcomes among Class VII students at Wusto Imam An-Nasai Gowa using a one-group pretest–posttest design. The population consisted of all seventh-grade students enrolled in the even semester of the 2024/2025 academic year. A learning outcome test was employed as the primary research instrument to measure students’ performance before and after the implementation of the learning model. The data analysis involved descriptive statistical methods combined with gain tests to assess the extent of improvement. The findings revealed that students’ mathematics achievement fell predominantly within the very high category, with 53.85% of learners classified in this range, indicating a notable increase in category levels compared to their pretest performance. Furthermore, the percentage of students who successfully met the required minimum competency standards after the application of the LAPS-Heuristic model reached 96.15%. This outcome clearly illustrates that the vast majority of students—over 85%—achieved or exceeded the established passing threshold, suggesting that the integration of the LAPS-Heuristic approach was highly effective in enhancing mathematics learning outcomes. Overall, the results underscore that the LAPS-Heuristic learning model can serve as a practical and impactful strategy to improve student engagement, comprehension, and mastery of mathematical concepts in junior high school settings.

Cahaya Jatmoko; Sindhu Rakasiwi; Feri Agustina; Daurat Sinaga; Heru Lestiawan

Jurnal Pengabdian dan Keberlanjutan Masyarakat 2025 Lembaga Pengembangan Kinerja Dosen

The utilization of Artificial Intelligence (AI) technology in education has become increasingly important with the development of information technology. This research aims to provide training for teachers and lecturers in using AI to build interactive and effective learning websites. The method used is online training via Zoom Meeting, which includes an introduction to basic AI concepts, practice creating learning websites, and evaluating training outcomes. The training was conducted over three days from October 26 to 28, 2024, with participants from various regions across Indonesia. The results showed that participants were able to understand AI concepts and apply them effectively in building learning websites more efficiently and creatively. Additionally, the use of AI helped improve the quality of learning content to be more personalized and adaptive to students' needs. Thus, the application of AI in education can serve as an innovative solution to enhance the quality of learning in the digital era.

Arif Dian Pratama; Rahmat Rahmat; Zaitun Qamariah

Perspektif: Jurnal Pendidikan dan Ilmu Bahasa 2025 STAI YPIQ BAUBAU, SULAWESI TENGGARA

This collaborative community service activity aims to improve the learning outcomes of grade IV students at MIN 2 Palangka Raya City using web-based interactive digital books developed by PGMI IAIN Palangka Raya students. This activity is carried out collaboratively, where students design learning media with the guidance of lecturers who also act as expert validators. The activity stage begins with the identification of needs through observations and interviews at partner schools, especially on the theme "Look Around You" in Indonesian language subjects. Students then developed interactive teaching materials that integrated text, images, audio, and other multimedia elements using digital platforms. Media validation was conducted by four expert lecturers with very feasible results: material experts (94%), design experts (96%), classroom teachers (71%), and field trials (91%). The t-test showed a significant increase in learning outcomes (t = 6.60) with an N-Gain score of 1.00 in the high category. This program shows that collaboration between lecturers and students in developing learning media can have a real positive impact on the quality of basic education and can be a sustainable model of academic empowerment.    

Siti Khoirunnisa; Yulianah Yulianah; Agung Windrianto; Bunga Bunga; Rina Hidayati Pratiwi

Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Generally, students stated that the concepts in physics, especially on the material of distance, speed, and acceleration, are difficult to understand. This causes low student motivation and learning outcomes. In order to increase student motivation, understanding of concepts, and learning outcomes, it is necessary to use visual media so that learning is active and enjoyable. The use of visual media, one of which is education game-based learning media, is very helpful for students in understanding physics concepts, especially on the material of distance, speed, and acceleration. The purpose of this study was to determine the study of the use of visual media based on education games that can improve students' understanding of the material of distance, speed, and acceleration. This research method uses the library research method. The form of research uses literature studies with qualitative data acquisition. To obtain data using two databases, namely Google Scholar and Sinta, with document analysis first carried out to identify relevant literature studies. Based on the results of the preliminary study conducted, it was obtained that the use of visual media based on education games is good and flexible. With the use of visual media based on education games, students find it easier to understand the material of distance, speed, and acceleration. In addition, it makes it easier for teachers to carry out learning activities. Learning is more interesting, students are more motivated so that students' understanding, abilities, and learning outcomes increase.

Mujhirul Iman; Wahyu Syahputra; Lingghom Miranda Hanum Pakpahan; Evi Sundari; Dedi Rusdi Pohan +2 more

Jurnal Riset Rumpun Ilmu Sosial, Politik dan Humaniora 2025 Pusat Riset dan Inovasi Nasional

This study aims to improve the quality of learning at SD Negeri 060915, Medan Sunggal District, through the implementation of a participatory learning approach using Participatory Action Research (PAR). The background of the study is based on the low level of student engagement in classroom activities and the teacher’s reliance on traditional lecture methods, which hinder active student participation. This classroom action research was carried out in two cycles, each consisting of planning, action, observation, and reflection stages. Data were collected through observation, interviews, documentation, and formative assessments. The results showed that the participatory learning approach had a positive impact on increasing student engagement, collaboration in group work, and academic performance, as indicated by an increase in the average student score from 66.4 in the first cycle to 77.2 in the second cycle. Teachers also improved their role as facilitators, and the classroom environment became more interactive and student-centered. The study concludes that the participatory approach is effective in creating an active, collaborative, and meaningful learning environment in elementary education.

Mariana Mariana; Putri Khairani; Rahma Aulia

Bilangan : Jurnal Ilmiah Matematika, Kebumian dan Angkasa 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study is a literature review that aims to identify and analyze the application of GeoGebra applications in learning geometric transformations at the high school level. Geometric transformation is a material that requires high spatial visualization skills, so learning media are needed that are able to present concepts in a concrete and interactive way. GeoGebra, as a dynamic mathematics application, is considered capable of facilitating student understanding through direct visualization of transformation processes such as translation, reflection, rotation, and dilation. The study was conducted by reviewing 11 relevant scientific articles, published in the last five to ten years, and meeting certain inclusion criteria. The results of the analysis show that the application of GeoGebra in learning has a positive impact, both cognitively, affectively, and technically. GeoGebra is able to improve students' understanding of concepts, learning motivation, and learning outcomes. The implementation strategy includes the development of e-modules, digital teaching materials, problem-based learning, and application usage training. Overall, GeoGebra has proven to be valid, practical, and effective in supporting more interesting and meaningful learning of geometric transformations.

Ellena Evelyn; Desy Safitri; Saipiatudin Saipiatudin

SOSIAL: Jurnal Ilmiah Pendidikan IPS 2025 Asosiasi Peneliti Dan Pengajar Ilmu Sosial Indonesia

This study aims to improve students' learning outcomes in Social Sciences (IPS) through the implementation of the Science, Technology, Engineering, and Mathematics (STEM) learning model. The background of this study is based on the low learning outcomes of IPS in class VII of SMP Negeri 3 Jakarta, as well as the lack of variations in innovative learning models. The study used the Classroom Action Research (CAR) method of the Kemmis and McTaggart model which was carried out in two cycles. Each cycle includes the stages of planning, implementation, observation, and reflection. The subjects of the study were 36 class VII-B students. Data collection techniques used learning outcome tests, observations, interviews, and documentation. The results of the study showed a significant increase in student learning outcomes. In the first cycle, the percentage of students who achieved the Minimum Completion Criteria (KKM) was 77.77%, increasing to 91.6% in the second cycle. In addition, student activity in learning activities also increased. These results prove that the Science, Technology, Engineering, and Mathematics (STEM) learning model is able to integrate social studies concepts with real situations, thus facilitating students' understanding and improving the quality of learning.    

Purkoni, Ahmad; Zaky Rabbani, Fabian; Gofar, Abdul; Rozi, Tafsir

Societal Serve: Journal of Community Engagement and Services 2025 Pusat Riset dan Inovasi Nasional Mabadi Iqtishad Al Islami

This community service program was designed to enhance Qur’anic memorization skills among santri at Pesantren Assyifa by integrating effective cognitive-based learning methods with traditional Islamic pedagogical practices. Conducted over eight weeks, the program involved initial assessments, teacher training, student workshops, practical memorization sessions, and structured evaluations. Modern memorization techniques—such as mnemonic devices, visualization, spaced repetition, and active recall—were introduced and practiced alongside classical methods like talaqqi and tikrar. The program targeted more than 40 santri and involved tahfiz teachers as active facilitators. Quantitative and qualitative assessments demonstrated notable improvement in memorization retention, engagement, and confidence. By the end of the program, over 85% of participants achieved measurable progress in both speed and accuracy of memorization. Feedback from students and teachers highlighted the usefulness and motivational impact of the techniques introduced. This program not only provided a fresh approach to Qur’anic learning but also offered sustainable strategies for long-term application within the pesantren. The success of the initiative supports the importance of combining Islamic values with contemporary educational insights to produce holistic and effective learning outcomes.

Miftakhur Rochmah; Khoirotul Idawati

Jurnal Riset Rumpun Ilmu Pendidikan 2025 Lembaga Pengembangan Kinerja Dosen

Education is a major pillar in sustainable community development. In this digital era, information and communication technology (ICT) has changed the learning paradigm, opening up new opportunities to improve the quality of education. One of the prominent innovations is the use of E-Bookmik as a learning tool in schools. The use of E-Bookmik has great potential to improve the quality of student learning. E-Bookmik allows easier access to learning materials, provides multimedia content, and facilitates interactivity in learning. However, to ensure the success of the implementation of E-Bookmik, effective curriculum management is needed. To describe this research, the author uses a qualitative approach with a case study research type and is supported by data collection techniques through observation, interviews and documentation. After conducting research based on the approaches and types of research mentioned, as well as the theories used, it emerged that the use of E-Bookmik has been implemented well, in addition EBookmik can help facilitate access to teaching materials and make learning more interesting. And students can learn anytime and anywhere. Student learning outcomes increase in understanding and active involvement. E-Bookmik also helps teachers compile and update teaching materials more efficiently, and supports effective and sustainable learning. The use of E-Bookmik in Islamic Religious Education Subjects has great potential to improve the quality of learning. Students are more enthusiastic and understand the material quickly.

Syifa Auliani; Chandra Chandra; Salmaini Safitri Syam

This study aims to identify and understand the root causes of low student learning outcomes in writing descriptive texts in grade IV of elementary school. Based on the results of field observations, it was found that the majority of students scored below the Minimum Completion Criteria (KKM) in both cognitive and psychomotor aspects. In addition, student participation in learning activities is also relatively low, which is reflected in minimal interaction, lack of discipline, and lack of self-expression. This study uses a descriptive method with a qualitative approach, using observations in the form of tests and documentation as data collection techniques. The results of the study indicate that lack of understanding of the structure and characteristics of descriptive texts, interaction in learning, challenges in using learning media, and low student motivation are dominant factors in decreasing the quality of learning outcomes. Other factors are low interest in reading and limited student vocabulary. This study recommends that learning be carried out with a more communicative, applicable, and meaningful approach according to the characteristics of students in elementary schools.

Anas Ansoriyah; Supardi Supardi

Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam 2025 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

This study aims to determine the effectiveness of the use of Electronic Student Worksheets (E-LKPD) based on Liveworksheets in improving the learning outcomes of class VII students of SMP Negeri 14 Kota Serang on the Earth and Solar System material. LKPD functions to connect teaching and learning activities so that effective interactions occur between students and teachers, which can increase student activity to improve academic achievement. This study aims to identify improvements in student learning outcomes using ELKPD liveworksheet. This study uses a quantitative research type with a Pre-experimental design that collects and analyzes numerical data using research instruments. One Group Pretest - Posttest Design is a written design used which is combined with library research, namely using various supporting literature references in the data collection process without going into the field. Thus, it can be concluded that E-LKPD Liveworksheet is effective as a learning medium to improve student learning outcomes on the Earth and Solar System material