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This research aims to determine whether there is an influence of the think pair share cooperative learning model on students' mathematical communication skills. This research was conducted at SMA Markus Medan. The research method used is a quasi experimental method. The sample in this study consisted of two classes, namely class XI IPA-1 as the experimental class and class XI IPA-2 as the control class. The experimental class uses the think pair share learning model, and the control class uses conventional learning. The average result of the final test score (post-test) for experimental class students was 84.33, while in the control class the average final test score for students was 70.14. In the hypothesis test, the results of the mean difference test (t-test) were obtained with the statistical value  >  (8,342 > 1,671), which means that there is an influence from the use of the think pair share learning model applied in the experimental class. This indicates that the mathematical communication skills of experimental class students are better than those in the control class.    

The application of the STAD type cooperative learning method (Student Teams-Achievement Divisions) is a relevant strategy in efforts to improve students' mathematical abilities. In this research, we examine the effectiveness of using the STAD type cooperative learning style in improving students' mathematical abilities. This approach involves dividing students into small teams to encourage collaboration, joint problem solving, and knowledge exchange. We evaluated the impact of implementing this learning model on students' mathematical abilities and gained insight into effective learning strategies in the context of improving mathematics achievement.

The development of technology has affected the world of education in the content of the material and the learning process. At SMP Negeri 1 Besuki, it is known that technology-based learning media has never been developed during learning. The learning media that runs at SMP Negeri 1 Besuki is considered boring for students. This learning media is expected to help students to understand learning independently and improve the ability to understand informatics subjects.This research uses the ADDIE development model which consists of five stages, namely: analysis, design, development, implementation and evaluation. The ADDIE model provides an opportunity to evaluate development activities at each stage, this has a positive impact on the quality of development products. Based on the results of the feasibility test from the media expert of 83.63%, the results of the feasibility test on the material test amounted to 84.44% and student respondents amounted to 82%. If calculated the average is 83, 35%. Based on the criteria guidelines above this product is declared "Very Feasible". Mobile-based learning media using Construtc 3 in informatics subjects at SMP Negeri 1 Besuki can be utilized properly, introducing this learning media to teachers and other students. To Mr. / Mrs. Teacher in order to use and utilize mobile-based learning media using Construtc 3.

Integrating deep learning methodologies is pivotal in shaping the continuous evolution of computer-aided design (CAD) and computer-aided engineering (CAE) systems. This review explores the integration of deep learning in CAD and CAE, particularly focusing on generative models for simulating 3D vehicle wheels. It highlights the challenges of traditional CAD/CAE, such as manual design and simulation limitations, and proposes deep learning, especially generative models, as a solution. The study aims to automate and enhance 3D vehicle wheel design, improve CAE simulations, predict mechanical characteristics, and optimize performance metrics. It employs deep learning architectures like variational autoencoders (VAEs), convolutional neural networks (CNNs), and generative adversarial networks (GANs) to learn from diverse 3D wheel designs and generate optimized solutions. The anticipated outcomes include more efficient design processes, improved simulation accuracy, and adaptable design solutions, facilitating the integration of deep learning models into existing CAD/CAE systems. This integration is expected to transform design and engineering practices by offering insights into the potential of these technologies.

21st-century learning always goes hand in hand with technology. Technology will always be involved in learning, and teachers are required to look for alternatives if learning experiences obstacles. The Covid-19 pandemic has hampered face-to-face learning. Therefore, teachers apply the blended learning model as a solution to combine online and offline learning. This research aims to find out how blended learning is implemented in elementary school to high school education. This research uses a literature study method by searching for various related reference materials. The results of the research show that the application of the blended learning model in education produces significant and positive results in student development.

English as an international language is an important language to be proficient in since it is used all over the globe. English is not an easy language to learn. Understanding phrases or expressions is very important when speaking English. The foundation for making sentences in English is to first understand words that are often used in everyday life (everyday vocabulary) and being able to effectively construct sentences that can be understood by others is a prerequisite for being able to compose sentences in English. The method used in the implementation of community service at SMPI Darul Muminin Bekasi school is the visual method and English card. The method of forming sentences using English cards emphasizes the ability of students to understand sentences using learnt vocabulary that is used to be assembled in a plot of a story. The application of the game technique method of composing sentences using English cards is considered very effective and fun, it is hoped that one day this method can be used as a model to develop learning activities in the classroom.

One of the aims of this research is to identify students' writing skills taught by the Somatic, Auditory, Visual and Intellectual (SAVI) learning model in expository texts written by students in class X SMA N 14 Medan. Another aim is to find out how the problem-based learning model (PBL) and the SAVI (Somatic, Auditory, Visual and Intellectual) learning model have an impact on the exposition text. This research involved all students in class X SMA N 14 Medan, with a simple random sample, consisting of 36 students in class X-1 and 36 students in class X-2. A two-group post-test experimental method was used and the research instrument was an expository text writing test. The "t" test data is used to test the hypothesis. The results show that students' ability to write expository texts using the PBL learning model is in the fair category with an average score of 70.36, while their ability with the SAVI learning model is in the very good category with an average score of 89.36. Furthermore, the results of the hypothesis test show that the null hypothesis (H0) is rejected, and the alternative hypothesis (Ha) is accepted, because tcount is greater than ttable, namely 9.82 is greater than 1.934. Thus, it can be concluded that the expository text writing skills of class X SMA N 14 Medan students are greatly influenced by the use of the SAVI learning model.

The role of teachers in Christian-based character education is crucial in shaping individuals who are not only intellectually smart but also rich in values and ethics, especially amidst the challenges of globalization and rapid technological advancements. This research aims to develop teaching methodologies that can support Christian religious education teachers in their duties, specifically in designing and implementing an effective curriculum to help students understand and apply Christian values in daily life. The research method to be used is literature research, involving the collection of data related to the discussed theme from primary sources such as books, scientific journals, and others. The research findings indicate that Christian Religious Education teachers play a vital role in forming students' character to reflect the teachings of Lord Jesus Christ through the teaching of Christian values and by being models in behavior, attitude, and ethics. Effective character education requires support from a conducive learning environment, including the commitment of the school community, a curriculum that is integrated with values and ethics, visionary leadership from the school principal, and solid teamwork, despite challenges such as limited resources, lack of parental support, and apathetic attitudes from some parties.

This paper compares various machine learning models in their ability to predict financial trends, with a focus on time-series analysis. We evaluate models such as linear regression, decision trees, support vector machines, and deep learning, measuring their performance based on accuracy, computational cost, and interpretability. Our results reveal that deep learning models offer superior accuracy but are less interpretable, while simpler models, though less accurate, provide better insight into the underlying data. This research provides guidelines for selecting suitable models based on specific financial applications.

Learning is a process, an activity and not a result or goal. Learning is not just remembering, but broader than that, namely experiencing. This article discusses how to apply the PBL (Problem Based Learning) learning model in increasing student activity. This research is classified as qualitative descriptive research. In the learning process, students tend to get bored and less interested in the ongoing learning process because the method used is only lectures and is monotonous. Student activity in the learning process also has an important role in learning outcomes. The project based learning learning model is a scientific approach which consists of several stages, including observing, asking, collecting information, reasoning and communicating. Through these various stages students can increase their role in the learning process.

Students feel physics is a difficult subject and full of formulas, the amount of subject matter that must be memorized, lack of motivation from within students to learn physics, and the inaccuracy of models, methods, and learning media used by teachers, so that learning activities feel bored and boring. Theaim of the research to determine student learning outcomes using the Discovery Learning model assisted by Powerpoint media. This type of research is quantitative research. From the data analysis, the average score of the experimental class was 10.32 with a classification standard of 2.19 and the average score of the control class was 10.06 with a division standard of 2.08. In the normality test for the experimental class obtained Lcount< Ltable = 0.066 < 0.246 and in the control class Lcalculate< Ltable = 0.056<0.234 then both classes have normal distributed data. In the homogeneity test of the data of both samples obtained Fhityoung ≤ Ftabel = 0.429 < 0.657 then both samples came from samples that Homogeneous. The results of the t test are obtained tcount>t table = 2.021 > 1.684 so that Ha is accepted. Thus, this study shows that there is a significant influence on the discovery learning learning model using PowerPoint media on student learning outcomes at SMAN 1 Tanoh Alas.

This research aims to determine the learning outcomes of class V students at Lonrong State Elementary School, Bajeng District, Gowa Regency in science learning after implementing the Card Sort Type Active Learning Model on Science Learning Results for Class V Students at Lonrong State Elementary School, Bajeng District, Gowa Regency. This research uses a pre-experimental quantitative research method involving one class as a focus class using a One Group Pretest-Posttest Design. The population in my research was class V students with a total of 20 students at Lonrong State Elementary School, Bajeng District, Gowa Regency. The sampling technique used was using only the experimental group without a control (comparison) group. The author took samples using total sampling techniques or saturated samples. So the sample size for this research is all fifth grade students at Lonrong State Elementary School, Bajeng District, Gowa Regency. The instruments used were student observation sheet instruments and science learning outcomes tests in the form of multiple choice questions to measure student learning outcomes with Pretest and Posttest. The results of the research show that the science learning outcomes of students in class V of Lonrong State Elementary School, Bajeng District, Gowa Regency, descriptive statistical analysis data revealed that after implementing the Card Sort Type Active Learning Model, the average score on the Pretest was 45, which is in the very low category with the number of students not 16 students completed, namely 80% and 4 students completed, namely 20%. Meanwhile, the average on the PostTest, namely 68.05, is in the medium category with the number of students who did not complete 4 people, namely 20% and 16 students who completed it, namely 80%. The average score on the PostTest is higher than the average score on the Pretest. Meanwhile, the average in the n-gain test was 0.41, which means it is in the medium category. So it can be concluded that the application of the Card Sort Type Active Learning Model to student learning outcomes in class V science learning at Lonrong State Elementary School, Bajeng District, Gowa Regency has increased.

The Teaching Campus is one of the Merdeka Belajar Kampus Merdeka (MBKM) programs which aims to be a learning platform that provides opportunities for students throughout Indonesia to study outside campus for one semester to practice their skills and explore the interests and talents they already have. This research aims to implement a collaborative learning model through the Class 6 Teaching Campus program at SMPN 5 Tanggul. The collaborative learning model is implemented with the aim of increasing interaction between students and developing critical thinking and collaboration skills. The research method used is a qualitative method with a case study approach through observation, interviews and documentation. Thus, it can be concluded that the implementation of the collaborative learning model through the Class 6 Teaching Campus program at SMPN 5 Tanggul can be an effective alternative in improving the quality of learning in secondary schools. This research contributes to the development of collaborative learning methods and provides recommendations for related parties to continue and develop this program further.

In the latest curriculum, Indonesian language learning is oriented towards text-based learning. Therefore, students are invited to be able to produce various types of texts according to the material taught. The purpose of this study is to describe the application of the case-based learning model in the case-based learning (CBL) learning model in the Indonesian language subject of writing negotiation texts for class X students at SMK Mataram Semarang in the 2023/2024 academic year, the method used is descriptive qualitative method. This research focuses on the differences after the application of the case-based learning (CBL) model by using observation data, interviews with educators and students and documentation. As for data analysis techniques using descriptive by displaying the results of observations, the results of interviews with educators and students, student learning outcomes in the form of writing results and documentation such as learning documentation based on the steps in the application of the case-based learning (CBL) model and several other supporters. The results obtained after the application of this learning model are that students can have scores above the KKM and can also write independently the negotiation text that has been made in accordance with the linguistic rules.The conclusion based on the results of this study is that the application of the case base learning (CBL) model in class X Boga 1 SMK Mataram Semarang in the 2023/2024 academic year can be applied as an effective learning model to make students in writing negotiation text.  In addition, this application can also add alternative learning for educators.

Lesson study builds a learning community among teachers, learners, academics and education observers. Transcript Based Learning Analysis (TBLA) model is one of the models used to analyze learning transcripts in more depth. This research aims to describe the lesson study learning pattern in science learning through TBLA analysis. The method used in this research is descriptive qualitative research method to describe the phenomena that take place as it is. The research was conducted in class VIII A MTs ABU AMR Tambakrejo, human respiratory system material, with a cycle of plan, do, see. This research instrument is a video and audio recorder and a researcher's field note sheet. Data collection is done through 3 ways, namely documentation, observation and discussion. The data collected in this research is in the form of transcripts of Lesson study Learning Community learning.The data analysis technique uses TBLA analysis model. The results of the study describe the conversations that occur between teachers and students, linear patterned learning, the category leads to Student Center Learning. The conclusion of this research is that science learning of human digestive system material has a linear pattern that describes learning getting stronger to achieve learning goals and SCL categories that are student-centered. This research suggestion can be used as a reference for reflection in developing teacher professionalism to shape more effective learning.

This study explores the utilization of LightGBM, a gradient-boosting framework, to classify the inhibitory activity of beta-secretase 1 inhibitors, addressing the challenges of Alzheimer's disease drug discovery. The study aims to enhance classification performance by focusing on overcoming the limitations of traditional statistical models and conventional machine-learning techniques in handling complex molecular datasets. By sourcing a dataset of 7298 compounds from the ChEMBL database and calculating molecular descriptors for each compound as features, we employed LightGBM in conjunction with a set of carefully selected molecular descriptors to achieve a nuanced analysis of compound activities. The model's efficiency was benchmarked against traditional machine-learning algorithms, revealing LightGBM's superior accuracy (84.93%), precision (87.14%), sensitivity (89.93%), specificity (77.63%), and F1-score (88.17%) in classifying beta-secretase 1 inhibitor activity. The study underscores the critical role of molecular descriptors in understanding drug efficacy, highlighting LightGBM's potential in streamlining the virtual screening process. Conclusively, the findings advocate for LightGBM's adoption in computational drug discovery, offering a promising avenue for advancing Alzheimer's disease therapeutic development by facilitating the identification of potential drug candidates with enhanced precision and reliability.

This study aims to determine whether the NHT type cooperative learning model with the help of LKPD can improve student learning outcomes in grade X of SMA Negeri 1 Stabat. This type of research is Classroom Action Research (PTK) or action research which consists of 2 cycles, where each cycle consists of 1 meeting. The subjects in this study were students of grade X Science 1 SMA Negeri 1 Stabat consisting of 36 students. The object of this study is the results of student learning with the application of the Numbered Head Together type cooperative learning model with the help of Student Worksheets in grade X Science 1 SMA Negeri 1 Stabat. From the results of the study can be concluded the following: (1) There is an increase in students' mathematics learning outcomes. This can be seen by the achievement of classical completeness in the initial test obtained 30.56%, in the learning outcome test I increased to 61.11%, and in the learning outcome test II increased to 86.11%, so that based on the results of the data analysis it was obtained that this study had reached the specified success indicators. (2) After the implementation of the Numbered Head Together learning model with the help of Student Worksheets, students' mathematics learning outcomes have been classically completed to 86.11%.

This research aims to determine the effect of the Problem Based Learning learning model on review text writing skills in class XII students at SMA Negeri 1 Pekanbaru and to find out how the Problem Based Learning learning model is applied to review text writing skills in class the type of research carried out in this research is a Quantitative Approach. The population in this study was all students in class. The data collection technique used in this research is the test and observation method. Data Analysis Techniques In this research the author uses quantitative descriptive. The research results in this study are the value of review text writing skills studied using the Problem Based Learning method, meaning that the average percentage of student scores is 85.00 ≥ 100% of the specified KKM, so it can be concluded that H1 is accepted and H0 is rejected and there is an influence on Value of review text writing skills for class XII students at SMA Negeri 1 Pekanbaru. The results of hypothesis testing use the t test, namely the Independent Sample T-Test via the SPSS program. shows that t count ≥ table, namely 128.567 > 2.036 with df = 32 at the 5% significance level is 2.036 so that H1 is accepted and Ho is rejected.

This research aims to find out whether the application of the problem based learning model can improve students' mathematical problem solving abilities in class VII of St. Peter's Middle School, Medan. This research method uses Classroom Action Research (PTK). The research procedure is cyclical. Each cycle consists of 4 stages, namely: planning, implementing actions, observing and reflecting. Data collection techniques through observation and tests. This data collection uses several instruments in the form of student observation sheets. Meanwhile, to determine students' mathematical problem solving abilities, tests are used. The results of the research show that the use of the Problem Based Learning learning model can improve students' mathematical problem solving abilities in mathematics lessons on algebra material. From the average value of prerequisite abilities, namely 55.56, the average value of students' mathematical problem solving abilities in cycle I is 72.55 and the average value of students' mathematical problem solving abilities in cycle II is 76.39 and the activity value of students in cycle I is 62%, and cycle II, namely 85%.

This research aims to determine the difference in student learning outcomes regarding linear equations and inequality taught using the PBL model compared to student learning outcomes taught using the Direct Instruction model. This research is quasi-experimental. The samples in the research were class X-IPA as an experimental class with a total of 17 students. The instrument used in this research consisted of a learning outcomes test in the form of a written test in the form of an essay with material on linear equations and inequalities. The data collection technique is through observation and tests in the form of evaluation questions. The test is carried out twice. Namely, the pretest is carried out at the beginning of the research to determine students' achievement scores before treatment, and the posttest is carried out in both control and experimental groups after treatment. Based on hypothesis testing using independent test statistics (T-test), tcount = 3.596 and ttable = 1.694 at a significance level of ⍺ = 0.05. The research results show that the tcount value is more significant than ttable because (3.596 > 1.694) with a sig (2-tailed) value of 0.014 < 0.05 so it can be said that there is a significant difference in the learning outcomes of the experimental group using the PBL model and the control group using the Direct Instruction learning model which means that there is an influence of the application of the PBL learning model on the learning outcomes of class X students at SMA Negeri 2 Tondano.