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This study aims to determine the application of the Problem-Based Learning (PBL) model in improving Civic Education (PKn) learning outcomes among fourth-grade students at SDI Harekakae, Malaka Regency. This research employed an experimental method using a post-test only control group design. The population consisted of all fourth-grade students, with class IV B serving as the experimental group and class IV C as the control group, totaling 42 students. The experimental group was taught using the Problem-Based Learning model, while the control group was taught without applying the model. Data were collected through learning outcome tests, observations, and documentation. The results showed that the experimental class achieved an average score of 85 out of an ideal score of 100 with a standard deviation of 8.25, while the control class obtained an average score of 62.6. These findings indicate that the implementation of the Problem-Based Learning model significantly improves students’ Civic Education learning outcomes. Therefore, the Problem-Based Learning model is recommended as an innovative alternative to enhance the effectiveness of Civic Education learning in elementary schools.

This study aims to determine the effectiveness of the Problem-Based Learning (PBL) model assisted by Doratoon animation videos on students’ conceptual understanding in Social Studies for eighth-grade students of SMP Negeri 6 Sengah Temila. This research employed a quantitative approach using a quasi-experimental method with a Pretest-Posttest Control Group Design. The population in this study consisted of all eighth-grade students, with two classes selected as samples using a purposive sampling technique. The experimental class was taught using the PBL model assisted by Doratoon animation videos, while the control class used Canva media. The research instrument was a multiple-choice test consisting of 20 questions administered before and after the treatment to measure students’ conceptual understanding. The data analysis results showed that the average N-Gain score of the experimental class was 21.6% (low category), while the control class scored 22.6% (low category). The independent sample t-test yielded a significance value of 0.000 < 0.05, indicating a significant difference between the experimental and control classes. Therefore, the Problem-Based Learning model assisted by Doratoon animation videos was proven to be more effective than Canva media in improving students’ conceptual understanding in Social Studies. The results of this study are expected to serve as a reference for teachers in applying innovative learning media to support more interactive and meaningful learning.

The learning model that can be used to make students active is the Problem-Based Learning (PBL) model. The Problem-Based Learning model is a problem-based learning, where learning is centered on students so that students are required to provide solutions to the problems given. This study aims to determine how much impact the application of the PBL model has in improving student learning outcomes on learning the Basics of Electronic Engineering at SMK Negeri 2 Dumai. The type of research used is quantitative research with a quasi-experimental method using a pretest-posttest control group design. The research subjects consisted of 64 students divided into two groups, namely class X TEI SMK Negeri 2 Dumai as an experimental group that applies the PBL model (36 students) and class X TEI SMK Negeri 3 Dumai as a control group that applies the conventional learning model (28 students). The research instrument was a multiple-choice objective test of 25 items whose validity and reliability had been tested with a Cronbach's Alpha value of 0.843. The data analysis technique used descriptive statistics and Independent Samples T-Test. The results showed a significant difference in learning outcomes between the experimental and control classes, with a t-test value of 4.168 and a significance level of 0.000 (p < 0.05). The experimental class experienced an average increase in learning outcomes of 15.55 points (from 64.78 to 80.33), while the control class only increased by 7.57 points (from 63.43 to 71.00), with a posttest average difference of 9.333 points. Furthermore, the PBL model was also effective in reducing the ability gap between students, as indicated by a decrease in the standard deviation from 9.457 to 8.021. It can be concluded that the implementation of the PBL learning model has a significant impact on improving student learning outcomes in the Fundamentals of Electronic Engineering course at SMK Negeri 2 Dumai.

Students' critical thinking skills in mathematics learning are still relatively low, mainly because the learning process is not contextual and student-centered. This study aims to develop mathematics teaching materials with an ethnomathematics nuance using the Problem Based Learning (PBL) model to improve students’ critical thinking skills on the topic of angle relationships for seventh-grade junior high school students. The research employed a Research and Development (R&D) approach with the ADDIE stages (Analysis, Design, Development, Implementation, and Evaluation). The subjects of this study were students of class VII C. The research instruments consisted of expert validation sheets, student response questionnaires, and a critical thinking skills test. The results of expert validation indicated that the teaching materials fell into the “very valid” category with an average score of 3.54. Student responses showed the teaching materials to be “very practical” with an average score of 3.58, while teacher responses also indicated “very practical” with an average score of 3.7. The effectiveness test showed an increase in students’ pretest and posttest scores, as evidenced by the N-gain results, although only within the medium category. In addition, 50% of students achieved learning mastery above the Minimum Mastery Criteria (KKM).

This study aims to analyze the influence of the Problem-Based Learning (PBL) model assisted by e-LKPD on students’ problem-solving abilities and self-confidence in vocational high schools. Specifically, the objectives are: (1) to examine the simultaneous effect of the PBL model assisted by e-LKPD on both variables, (2) to determine its effect on problem-solving ability, and (3) to evaluate its effect on self-confidence. A quantitative approach with a quasi-experimental pretest–posttest control group design was applied. The population consisted of all 10th-grade students at SMK Negeri 1 Tarakan, while the sample was selected using purposive sampling, resulting in class X Marketing 1 (35 students) as the experimental group and class X Culinary 2 (34 students) as the control group. Research instruments included a problem-solving test and a self-confidence questionnaire. Hypothesis testing utilized Hotelling’s T² and independent sample t-tests. The findings showed that 97% of students in the experimental class met the Learning Objectives Mastery (KKTP), compared to only 18% in the control group. Improvement in the experimental group was categorized as high, whereas in the control group it was moderate. Self-confidence also increased significantly in the experimental group, with most students moving from low to high categories. Hotelling’s Trace (Fcount = 77.109, p < 0.001) and t-tests confirmed significant effects on both problem-solving (tcount = 11.657) and self-confidence (tcount = 8.140), proving that the PBL model assisted by e-LKPD effectively enhances students’ abilities and confidence.

This research aims to enhance students' English technical competence by implementing Problem-Based Learning (PBL) for the English for Mechanical Engineering course at Politeknik Negeri Fakfak. However, the setting of this research is rooted in students' difficulties in understanding technical terms and applying English in engineering work environments. Implementing a participatory action research model with descriptive qualitative approaches, the research was conducted among 50 students of two classes. Data were collected through questionnaires, observations, and interviews. The findings showed that 88% of students perceived the learning material as highly relevant, 84% reported improved mastery over technical vocabulary, and 90% reported greater collaboration and problem-solving skills. Furthermore, the intervention fostered active learning behaviors, peer leadership, and a positive shift towards more favorable attitudes among students towards English as a professional tool. These findings confirm that PBL is a valuable approach to English language learning contextualization in the vocational education context, enhancing the development of both language and soft skills. The research proposes wider implementation of PBL across technical curricula to improve educational outcomes in correspondence with industry requirements.

This study aims to determine the differences in problem-solving and critical thinking skills between students taught using the Reciprocal Teaching and Problem-Based Learning models in class X of SMK Ki Hajar Dewantara Kotapinang for the 2021-2022 academic year. This is a quantitative study using a quasi-experimental design. The population consists of all class X students at SMK Ki Hajar Dewantara Kotapinang in the 2021-2022 academic year, totaling 111 students. The sample used was class X AKUNTANSI 1 and X AKUNTANSI 2, each consisting of 20 students, chosen as experimental classes using Cluster Random Sampling. Data were collected from pre-tests and post-tests with problem-solving and critical thinking skill test items, then analyzed descriptively and followed by Two-Way ANOVA. The findings indicate: 1) There is no difference in problem-solving ability between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.320 < F_table(α= 0.05) = 3.978; 2) There is a difference in critical thinking skills between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 5.128 > F_table(α= 0.05) = 3.978; 3) There is a difference in both problem-solving and critical thinking skills between students taught using the Reciprocal Teaching model and the Problem-Based Learning model in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.026 > F_table(α= 0.05) = 3.936; 4) There is no interaction between the Reciprocal Teaching and Problem-Based Learning models in class X of SMK Ki Hajar Dewantara Kotapinang, with F_observed = 0.459 < F_table(α= 0.05) = 3.936.

This study investigates the implementation of the Problem-Based Learning (PBL) model integrated with animated video media to enhance student motivation, creativity, and learning outcomes in economics at MA Salafiyah. Employing a classroom action research approach with a pretest-posttest design, the research involved 35 grade XI students. Data were collected through observation sheets, motivation and creativity questionnaires, and learning outcome tests. The Shapiro-Wilk test was used to assess data normality, while the Wilcoxon Signed Rank Test evaluated the significance of differences between pretest and posttest scores. The findings reveal that the application of PBL with animated video media significantly improves student motivation, creativity, and learning outcomes. Students demonstrated increased engagement, generated more creative ideas, and showed deeper understanding of economic concepts. Motivation was reflected in higher posttest scores and active participation, while creativity was evident in the ability to propose innovative solutions and think critically. Learning outcomes improved substantially, with average scores rising from 46.142 (pretest) to 83.571 (posttest). The integration of animated video media in PBL created a dynamic and interactive learning environment that facilitated comprehension, stimulated interest, and encouraged practical application of knowledge. This study concludes that PBL supported by animated video media is an effective pedagogical strategy for improving educational quality in economics learning.

Geometric writing ability is part of written mathematical communication abilities that focus on representing mathematical ideas in written form. Research observations show that this ability is still relatively low among eighth-grade students. The Geogebra-assisted Problem-Based Learning model is considered effective in encouraging active student engagement. Van Hiele's theory was chosen to classify students' geometric thinking stages. The purpose of this study was to describe the geometric writing ability of eighth-grade students based on Van Hiele's theory through the application of the Geogebra-assisted Problem-Based Learning model. The method used in this study was descriptive qualitative. The population in this study were eighth-grade students of SMP Negeri 32 Purworejo in the 2024/2025 academic year, with a purposive sampling technique. The instruments used included the Van Hiele geometry level test questions and interview guidelines. Data analysis was done by reducing the data, presenting the data, and drawing conclusions/verification. The results of this study are (1) the Van Hiele geometry level test results show that most students are at stage 2 (informal deduction), and (2) there are differences in students' geometric writing abilities based on groups, with the upper group able to achieve three of the four indicators, the middle group able to achieve two of the four indicators, and the lower group only able to achieve one of the four indicators. Based on these results, it is found that Van Hiele's theory, the PBL model, and Geogebra can help develop students' geometric writing ability.

This study aims to improve student learning outcomes through the implementation of the Problem Based Learning (PBL) model assisted by PowerPoint media in Mathematics for Grade I students at SD IT Riyadhoturrohman. The research employs Classroom Action Research (CAR) conducted in two cycles. Each cycle consists of three meetings, following the stages of planning, implementation, observation, and reflection. The research subjects were 16 students from Grade I of SD IT Riyadhoturrohman. The Problem Based Learning model was chosen because it encouraged students to be actively involved in learning through solving contextual problems, while PowerPoint media was used to help visualize the mathematical concepts being taught. The results showed an improvement in students' learning outcomes from the pre-action stage to Cycle I, and a further increase in Cycle II. Additionally, students demonstrated improved participation, conceptual understanding, and teamwork skills. Thus, the implementation of the Problem Based Learning model assisted by PowerPoint media proved to be effective in improving the mathematics learning outcomes of Grade I students at SD IT Riyadhoturrohman.

Biology education in high school has an important role in shaping students' science literacy and critical thinking skills. However, ecological material, particularly the topic of Ecosystem Components and their Interactions, is often considered difficult because it is abstract and not easy to observe directly. This research aims to improve student learning outcomes through the application of the Problem Based Learning (PBL) model, which emphasizes real problem-solving, collaborative discussion, and active involvement in the learning process. The research uses the design of Classroom Action Research (PTK) which was carried out in two cycles in class X of St. Rosa de Lima Catholic High School Tondano involving 10 students in the odd semester of the 2025/2026 school year. Data was collected through observation of teacher and student activities, learning outcome tests in the form of pretests and posttests, and learning documentation. The analysis was carried out descriptively, qualitatively, and quantitatively by calculating the average score, percentage of completion, and student involvement. The results of the study showed a significant increase. The percentage of teacher activity increased from 58.3% in the first cycle to 87.5% in the second cycle, while student activity increased from 45.83% to 83.33%. The average score of students also increased from 70% in cycle I to 90% in cycle II, with classical completeness reaching 90%. These findings confirm the effectiveness of PBL as a contextual Biology learning strategy, able to bridge ecological concepts with real life, and increase students' curiosity, cooperation, and critical thinking skills.

Critical thinking ability is one of the important competencies that students must possess in biology learning. This research aims to develop Problem-Based Learning (PBL) Student Worksheets to train students' critical thinking skills in Plant Anatomy courses. This research uses the Research and Development method with a simplified 4-D model consisting of three stages: Define, Design, and Develop. The research subjects were second-semester Biology Education Study Program students at Universitas Muhammadiyah Bengkulu. Research instruments included media and material expert validation sheets, as well as student response questionnaires. Validation was conducted by one media expert and one material expert, then tested on 5 students (limited trial) and 22 students (extensive trial). Validation results showed that the student worksheets received a "very valid" category with 86% from media experts and 88% from material experts. Practicality tests showed "very practical" results with 89% in limited trials and 91% in extensive trials. The developed student worksheets contained contextual problem scenarios, systematic PBL stages, and critical discussion questions that encourage students to analyze, evaluate, and conclude based on empirical data. This research concludes that PBL-based student worksheets are feasible to use as learning media to train students' critical thinking skills in Plant Anatomy courses.

The development of digital media and innovative learning models in Junior High School Science education reflects a sustained commitment to meeting the demands of 21st-century skills and improving the quality of science instruction. A comprehensive literature review (2019–2024) reveals the dominance of the Research and Development (R&D) approach, which consistently yields highly valid, practical, and effective digital resources, such as Augmented Reality (AR), Android-based applications, and interactive educational games. These digital tools are synergistically integrated with modern instructional models, including Problem-Based Learning (PBL), Inquiry-Based Learning (IBL), and Predict-Observe-Explain (POE), which are proven effective in increasing student engagement, enhancing cognitive outcomes, and honing essential competencies such as Science Process Skills (SPS) and Higher-Order Thinking Skills (HOTS). Ultimately, this integration contributes significantly to overcoming learning difficulties in complex and abstract Science topics (e.g., the human digestive system) while also effectively addressing contemporary educational challenges, fostering meaningful learning experiences, and supporting long-term academic success for students.

This study aims to determine the effect of Problem Based Learning (PBL) and Inquiry learning models on students’critical thinking skills and cognitive learning outcomes on the topic of the human respiratory system. This research used a quasi-experimental design with a Non-Equivalent Pretest-Posttest Control Group Design. The research subjects were three eighth-grade classes at SMP Negeri 13 Lebong, consisting of two experimental classes taught using the PBL and Inquiry models and one control class using conventional methods. The research instruments included essay tests to measure critical thinking and multiple-choice tests to assess cognitive learning outcomes. Data were analyzed using ANOVA and LSD tests. The results showed significant differences among the three groups. The PBL model produced the highest improvement in both variables, followed by Inquiry, and lastly the control group. Therefore, PBL is proven to be the most Effective model inimproving students' critical thinking and cognitive learning outcomes in science education.

Active and innovative learning is crucial in improving students' critical thinking skills, especially in science learning at the elementary level. The Problem Based Learning (PBL) model is an effective approach to stimulate critical thinking, analysis, and problem-solving skills in fifth-grade students. This study aims to describe the implementation of the PBL model in science learning to improve fifth-grade students' critical thinking skills. The approach used is a literature study by collecting data from various written sources such as scientific journals and relevant publications regarding the application of technology and innovative learning models. The results of this study indicate that the implementation of the PBL model can increase students' learning motivation and critical thinking skills, while also assisting teachers in creating an interesting and enjoyable learning atmosphere. Thus, the PBL model can be an effective solution in developing students' higher-order thinking competencies in an educational era that demands creativity and innovation.

In the Candi Village community, there is still a phenomenon of a lack of awareness in understanding, exploring, and experiencing the historical values contained in Gedong Songo Temple. This condition has implications for the less than optimal use of historical sites as educational facilities and media for forming local cultural identity. Efforts to increase historical awareness are considered more effective if instilled from an early age through a contextual and applied educational approach. This study focused on students of SDN Candi 03, most of whom come from four hamlets around the area, namely Talun, Nglarangan, Ngipik, and Ndarum. The community service program designed aims to provide solutions to the partner's priority problem, namely low historical awareness among students, through the application of educational tourism and Project Based Learning (PjBL) methods. Educational tourism is positioned as a learning strategy that integrates recreational and educational aspects, allowing students to gain firsthand experience in interpreting historical sites. Meanwhile, PjBL is oriented towards project-based activities that encourage active student involvement in exploring real-world problems and producing creative products or solutions. The program is divided into three main stages: preparation, activity implementation, and monitoring and evaluation. The results of these activities are expected to increase students' knowledge, awareness, and concern for local cultural heritage, while fostering a sense of responsibility in preserving Gedong Songo Temple. Thus, educational tourism and PjBL-based education can be a relevant alternative model for fostering historical awareness among the younger generation in areas surrounding historical sites.

This study aims to improve the mathematics achievement of third-grade elementary school students through the implementation of the Problem-Based Learning (PBL) model within the framework of Classroom Action Research (CAR). The research was conducted at UPT SD Negeri Kutorejo 1 Tuban and involved 27 students over two instructional meetings. The study was carried out in two cycles, each comprising the stages of planning, implementation, observation, and reflection. Data collection techniques included learning outcome tests, interviews, and documentation. The data were analyzed using both quantitative and qualitative descriptive approaches. The findings indicate a notable improvement in students’ average mathematics scores, increasing from 79.47 in the first cycle to 83.91 in the second cycle. This improvement reflects the positive impact of the PBL model on students' conceptual understanding, problem-solving abilities, and active participation during the learning process. Throughout the intervention, students demonstrated increased engagement in group discussions, greater confidence in expressing ideas, and enhanced independence in addressing given problems. The PBL model proved effective in fostering active, collaborative, and meaningful learning. By presenting real-world contextual problems, the model not only enhanced students’ academic performance but also promoted the development of critical thinking, communication, and social skills. These outcomes align with 21st-century educational goals, which emphasize the cultivation of higher-order thinking skills. Theoretically, this study reinforces the effectiveness of PBL as an innovative pedagogical approach for mathematics instruction at the elementary level. It is recommended that educators systematically and consistently implement the PBL model in classroom practice. Future research is encouraged to explore the interaction between individual student characteristics and instructional models, in order to further optimize learning outcomes across various subject areas.

Science education at the junior high school level demands learning strategies that encourage active student engagement as well as enhance conceptual understanding. The low learning outcomes of students in the science subject of ecosystem materials emphasizes the need for learning innovations that focus on student activities. This study aims to evaluate the effectiveness of the Problem Based Learning (PBL) learning model in improving the learning outcomes of grade VIII students of SMP Negeri 1 Tumpaan. The research was conducted in the form of Classroom Action Research with two cycles, each of which included the planning, implementation, observation, and reflection stages. The subjects of the study were 30 students of grade VIII. The research instrument is in the form of learning outcome tests given at the pre-cycle stage, post-test cycle I, and post-test cycle II. Data were analyzed using descriptive statistics and repeated measurement tests to ascertain the significance of improving learning outcomes. The results showed an increase in students' average scores from 58 in the pre-cycle to 75.33 in the first cycle, and 79.5 in the second cycle. The percentage of learning completeness also increased from 20% to 66.67% in the first cycle, and reached 80% in the second cycle. Repeated measurement analysis showed significant differences between stages with strong positive correlation values. These findings confirm that PBL is effective in improving science learning outcomes, encouraging active student involvement, and improving the equitable distribution of achievement in the classroom. This research has implications for the importance of implementing PBL as an innovative learning strategy in junior high schools to support the achievement of science literacy and 21st century skill development

This study aims to analyze the influence of the Problem Based Learning (PBL) model in science education on students’ environmental literacy and science communication skills at SMK Negeri 3 Pekanbaru, focusing on the topic of disaster mitigation. The research employed a causal comparative approach with a post-test only design, comparing two student groups: an experimental class using the PBL model and a control class using conventional teaching. The results revealed a significant difference in environmental literacy, with the experimental class achieving a higher average score (81.86) compared to the control class (62.05). This indicates that the PBL model is effective in enhancing students' understanding, awareness, and environmentally responsible behavior. The PBL approach encourages active student engagement and the application of knowledge to real-world scenarios, which is particularly beneficial in the context of environmental issues and disaster mitigation. By working through problems related to environmental challenges, students are likely to gain a deeper understanding of the topic, which fosters a sense of responsibility towards environmental sustainability. In terms of science communication, although the experimental class showed a higher average score (75.78) than the control class (72.92), the difference was not statistically significant. This may be due to a lack of intensive training in scientific discussions and presentations. While PBL encourages collaborative problem-solving and idea-sharing, students may still require more structured practice in presenting and communicating their findings clearly and persuasively. The integration of more structured activities focusing on science communication skills could further enhance the effectiveness of the PBL model. Overall, the PBL model demonstrates positive potential in improving both environmental literacy and science communication. However, to achieve its full impact, its implementation must be consistent, with a focus on providing students with additional opportunities to develop their communication skills.

This research was conducted with the main purpose of examining and analyzing the specific needs of elementary school teachers in designing and implementing a Problem-Based Learning (PBL) model that is grounded in the Technological Pedagogical Content Knowledge (TPACK) framework, with the ultimate goal of enhancing students’ critical thinking skills as a crucial competency in the 21st century. The study is rooted in the understanding that critical thinking is not only a fundamental learning outcome but also a key skill for students to thrive in modern society, while at the same time recognizing the current limitations in technology integration within elementary-level PBL practices. A quantitative descriptive method was employed, involving a purposive sample of 100 elementary school teachers who provided data through structured questionnaires and interviews. The analysis focused on five core indicators, namely teachers’ initial knowledge of TPACK-based PBL, the availability of facilities to support its implementation, teachers’ participation in relevant professional training, the degree of TPACK integration in classroom learning, and the actual application of PBL in teaching practice. Findings revealed that only 36% of teachers possessed sufficient awareness of TPACK-based PBL, 40% reported having adequate facilities in their schools, 40% had previously joined related training, 36% had integrated TPACK into their instruction, and 50% had applied PBL in their classrooms. These results clearly demonstrate a significant gap between existing practices and the ideal conditions needed for maximizing the potential of TPACK-based PBL. Consequently, the study emphasizes the urgency of developing and strengthening this model by improving teacher knowledge, ensuring continuous professional development opportunities, and promoting the effective use of technology to foster innovative, contextual, and student-centered learning that can systematically nurture critical thinking abilities in elementary school students.