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This research is a Classroom Action Research (PTK) consisting of 2 cycles, each consisting of 2 meetings. Before giving action, an initial ability test is first given and at the end of each cycle is given a problem-solving ability test. From the results of the analysis of initial ability test data, it was obtained that many students achieved learning completeness from the initial ability test, namely 18 out of 28 students or 21% with a grade average of 26,7. The results of data analysis in the first cycle after applying the Reciprocal Teaching type cooperative learning model showed that the number of students who achieved learning completeness was 13 out of 28 students or 61% with a grade average of 70,7. The results of data analysis at the end of cycle II with the same learning obtained the number of students achieving learning completeness, namely 24 out of 28 students or 86% with a grade average of 90,86. This means that there is an increase in students' mathematical problem-solving skills from cycle I to cycle II. Based on classical completeness criteria, this learning has reached the classical completeness target.

This study aims to improve student learning outcomes in mathematics class X MIPA 2 at SMA Negeri 2 Medan using the Group Investigation learning model. This research is a class action research. The subjects of this study were students of class X MIPA 2 with a total of 36 students. This research consisted of two cycles with two meetings in each cycle. Each meeting carried out a test of learning outcomes. Data collection techniques used learning achievement tests, observation sheets and student response questionnaires. Data analysis techniques use data reduction and data exposure. The results of this study indicate that the application of the Group Investigation learning model in mathematics learning can improve student learning outcomes in class X MIPA 2. This increase in learning outcomes can be seen from student contributions during the learning process in the form of student learning outcomes tests, students pay attention to the teacher's explanation, students express opinions , students work with groups, student responses to the use of learning models and the results of observations. The increase in classical completeness on the learning outcomes test I cycle I was 19.44%. Meanwhile, learning outcomes II in cycle I increased to 44.44%. In cycle II, the classical completeness test III of 86.11% increased to 94.44% in the fourth learning achievement test. The observation results showed that in the first cycle it increased from 3.54 to 3.73 in the very good category and the student response to learning using the Group Investigation model in the first cycle was 85% increasing to 90% in the second cycle. It can be concluded that almost all students in class X MIPA 2 gave a positive response and accepted the implementation of the Group Investigation learning model in class X MIPA 2. Based on the results of this study it can be concluded that the Group Investigation Learning Model can improve student learning outcomes in Mathematics Learning at SMA Negeri 2 Medan.

The purpose of this study was to determine the effect of students' perceptions on the application of the Collaborative Creativity (CC) learning model to the mathematics learning outcomes of students in class X1 SMPN 2 Ranah Batahan Kabupaten Pasaman Barat.  This research is motivated by low critical thinking skills students. The method in this research is pure experiment, with research design Noneequivalent posttest - only Control Group Design. The population in this study were students class IX SMPN 2 Ranah Batahan which consists of 3 classes.  retrieval technique The sample used in this study is purposive sampling, so that The experimental class was selected, namely class IX 3 totaling 20. And the selected as the control class, namely class IX 2 totaling 20 students as research sample.  The research instrument used is the final test.  Test form used is an essay with test reliability is 0.901.  Analysis technique The data used is the t-test. Based on the data analysis, it is obtained that tcount = 1.89 and ttable = 1.87, because tcount> ttable, then reject the Ho at a significant level of 0.05 so it can be concluded that the critical thinking skills of students who apply Collaborative Creativity (CC) learning model is better than students' critical thinking skills apply conventional learning.

Low student learning outcomes were the background to this study. This study aims to determine the influence of the application of the Collaborative Creativity (CC) learning model on collaboration skills and learning outcomes of grade IX students at SMPN 1 Timpeh, Dharmasraya Regency. This research is a quasi-experimental study with the form of its design The Nenequivalent Posttest Only Cntrol Group Design with the taking of the research subject in Total Sampling. The Research Sample is a grade IX student of SMPN 1 Timpeh. This study used a final test instrument in the form of a description question and a questionnaire of student collaboration skills. The data analysis technique used is the t-test. it can be concluded that student learning outcomes using the Collaborative Creativity learning model are better than using conventional learning models and student collaboration skills are obtained by the percentage of students are very collaborative and collaborative students, so it can be concluded that student collaboration skills in mathematics learning are very collaborative

This study aims to determine the process of developing and feasibility of pocket book teaching materials on poetry writing skills based on the environment and local culture developed for class X students of SMA N 17 Medan. The subjects in this study were validators and students and the object of this study was a pocket book entitled "Writing Poetry Based on North Sumatra's Environment and Culture". The research method used is the research and development (R&D) method with the Borg and Gall model. Based on the results of the analysis, it was found that the validation data for the development of pocket book materials was very feasible to use. After calculating the feasibility percentage of the pocket book, the range is 81% - 100% with very feasible criteria. So it is concluded that the material developed in the form of a pocket book is very suitable to be used as a book to support students in the learning process.

This research is a Classroom Action Research (PTK) which is carried out in 2 cycles. Before carrying out research or taking action, an initial test is given to measure students' problem-solving ability and at the end of each cycle a problem-solving ability test is given. This study aims to determine how to improve problem solving skills through the application of the Geogebra-assisted Problem Based Learning (PBL) learning model. Students experienced an increase in problem-solving skills, in the initial test the average problem-solving ability was 42.19%. In the first cycle, the test results showed an increase of 57.81%. From the results of the second cycle test also increased to 88.50%. The test results showed an increase in students' problem-solving abilities. Thus, it can be concluded that the application of the Geogebra media-assisted PBL model can improve students' problem-solving abilities.

Education is a conscious effort to change character, morals, morals and also fosters creativity in thinking. Creative in thinking is something that is very urgent in life. Education has value to be able to solve problems precisely and quickly. The purpose of this study was to determine the extent to which the Collaborative Role of Creative Problem Solving and the Quiz Team Method played a role in increasing creative thinking. This study uses a qualitative descriptive analytical approach, which is one of the approaches used in qualitative research to understand phenomena in detail and depth. Researchers collect data through interview techniques, observation, case studies, or document analysis. Researchers used the class action research method (CAR). CAR involves iterative cycles of planning, action, observation, and reflection in order to achieve continuous improvement in student learning and achievement. The results showed that learning Creative Problem Solving (CPS) and quiz teams can improve students' creative thinking and this method is very good to use because students feel happy and not bored.

This study aims to determine: Showing an interactive learning media of mathematics on students' mathematical communication skills as a whole, The magnitude of the influence of using Geogebra-based interactive learning media on mathematical communication abilities based on educational level,  the magnitude of the effect of using interactive mathematical learning media on mathematical communication skills based on previously used interactive learning media, the large influence of the use of interactive learning media plays an important role in systematic mathematical methods, the large effect of the use of interactive learning media on mathematical communication skills is imaginative to mathematical communication based on the mathematical ability that is measured. This study uses the addie model. This sampling technique is highly influential using the Addie model and obtained 20 studies that match the criteria. This data collection technique uses freetest and posttest with the help of Geogebra Classic 6 software and the help of Microsoft powerpoint. The results of this data experiment show that:  overall this interactive learning media has a major influence on students' mathematical communication abilities.

This study aims to describe the concept of quantum learning model, the steps of applying quantum learning model, the role of quantum learning in increasing multiple learning targets, and the advantages and disadvantages of quantum learning model. Quantum learning model is a learning model that can make students directly experience problems, find their own answers to problems and activities in accordance with the competencies to be achieved.  The research method used is descriptive qualitative research method. Qualitative descriptive research method according to Kirk and Miller, defines that qualitative research is a certain tradition in social science that fundamentally relies on observations of humans both in their areas and in their terms. The research subjects were the English teacher, and the principal. The object of research is the students of class X-4 SMA PGRI Cicurug. The results showed that the success of quantum learning depends on the teacher's ability to understand the concept and implement quantum learning steps in their learning activities. Its application in English subjects is enough to show that there is an increase in student learning targets.  

This research is a development research (R&D) using the ADDIE development model which consists of: 1.) Analysis; 2.) Design; 3.) Development; 4.) Implementation; and 5.) Evaluation. Data collection was carried out by interviews, questionnaires and tests. The results of the interviews were analyzed descriptively qualitatively, while questionnaires and tests were analyzed quantitatively. Validation was carried out by questionnaire instrument experts, material experts, media experts and practitioner experts by class IV educators. The results of the analysis show that cartoon film learning media is included in the "very feasible" category to be used as a learning medium in class IV SDN 9 Sampurtoba. Based on Validation: 1.) Questionnaire Instrument Expert with an average percentage of 90%; 2.) Learning material experts get an average percentage of 95%; 3.) Learning media experts with an average percentage of 95%; 4.) Expert Practitioner with an average percentage of 93%. And continued with the distribution of Pre-Test and Post-Test questions to class IV with a lot of 15 students, obtained an average Pre-Test score of 42 increased with an average post-test result of 80. From the data acquisition it can be concluded that the developed cartoon film learning media is effective in improving learning outcomes.

The low ability of students in identifying life values ​​in short story texts is the background of this research. One of the causes of this is the lack of use of appropriate learning models by educators. In addition, as a result of the lack of utilization of appropriate learning models, namely the low level of students' critical thinking skills. The purpose of this study was to examine the effectiveness of the Discovery Learning model in learning to identify life values ​​in short story texts. This study also aims to examine the effectiveness of the Discovery Learning model in improving students' critical thinking skills. As well as examining differences in students' abilities in identifying life values ​​in short story texts and differences in students' critical thinking abilities in the experimental class using the Discovery Learning model and the control class using the discussion method. The method used in this research is a quasi-experimental method with nonequivalent control group design. The results of the research are based on the Wilcoxon test of the Asymp value. Sig. (2-tailed) of 0.000 < 0.05. That is, it can be concluded that there are differences in the learning outcomes of students identifying life values ​​in short story texts between the experimental class using the Discovery Learning model and the control class using the discussion method. As for the results of the Mann-Whitney test, the Asymp value. Sig. (2-tailed) of 0.000 < 0.05. That is, the Discovery Learning model is effectively used in learning to identify life values ​​in short story texts. Then the results of calculating the average value of students' critical thinking skills in the experimental class using the Discovery Learning model are 3.7 and in the control class using the discussion method namely 3.4. That is, it can be concluded that there are differences in students' critical thinking abilities. This shows that the Discovery Learning model is effective in improving students' critical thinking skills.

This research is motivated by the low ability of students to identify complications in short stories. The lack of variety of learning models used by educators is one of the causes. The selection of various learning models will greatly influence the process of learning activities so that they become active, creative and innovative in order to improve the quality of students. One learning model that is effectively used is Discovery Learning. In addition, the low ability to collaborate is also due to the lack of assignments given in groups by educators to students. The purpose of this study was to examine the effectiveness of the Discovery Learning model used in increasing the ability to identify complications in short stories and to improve students' collaboration skills. In addition, this study aims to examine differences in the ability to identify complications in short stories and the ability to collaborate between the experimental class using the Discovery Learning model and the control class using the discussion method. The method used is a quasi-experimental method with nonequivalent control group design. The results obtained based on the Wilcoxon test are the Asymp values. Sig. (2-tailed) <.001 or 0.001 <0.05, it can be concluded that there is a difference between students' learning outcomes in identifying complications in short stories between the experimental class using the Discovery Learning model and the control class using the discussion method. The results obtained based on the Mann Whitney-U test are the Asymp values. Sig. (2-tailed) of 0.010 <0.05, meaning that the Discovery Learning model is effectively used in learning. The value of collaborating in the experimental class has an average (mean) of 3.61 and the control class has an average (mean) of 3.47, meaning Discovery Learning model that it is very effective in improving collaboration skills.

Mathematics is one of the subjects taught at all levels from basic education to higher education, which has a significant role in preparing students to have the ability to think logically, analytically, systematically, critically and creatively, as well as have the ability to work together. One of the activities in learning mathematics at school is through problem solving. Problem solving aims to see students' understanding of a material. Mathematical problem solving ability is a very important part of learning mathematics. However, in reality, the problem-solving ability of junior high school students' mathematics is still very low. From these problems, then one of the lessons that can improve the ability to solve mathematical problems is Problem Solving learning. One of the factors that influence differences in problem solving ability is learning style. Learning styles have a close relationship and influence on the learning process in order to achieve learning goals. With students knowing their learning style, learning Problem Solving can be done easily. The subjects of this study were students of class VIII A MTs Plus Sunan Drajat Kedungsantren Bojonegoro. The purpose of this study was to determine the effectiveness of Problem Solving learning on mathematics learning outcomes when viewed from students' learning styles. The type of research used is quantitative research with the One Group Pretest-Posttest Design. The results showed that testing the data on mathematics learning outcomes with the Paired Sample T-Test stated that the t_count value was -9.726. The t_count value is negative, because the pretest average value is lower than the posttest average value. In this case, the t_count value can be positive so that it becomes 9.726. Meanwhile, the value of t_table with α = 0.05 and degrees of freedom (dk=n-1) with 24 students is 1.714. Then it can be seen that t_count > t_table, then H0 is rejected and Ha is accepted, meaning that there is a significant difference. So it can be concluded that the application of the Problem Solving learning model is quite effectively carried out in the teaching and learning process for class VIII A students of MTs Plus Sunan Drajat Kedungsantren on the material of geometric shapes on the flat sides of cubes and blocks.  

Systematic Review (SR) atau yang secara umum disebut Systematic Literature Review (SLR) ialah teknik sistematis untuk mengumpulkan, menguji secara kritis, mengintegrasikan dan mengumpulkan hasil bermacam kajian penelitian terhadap pertanyaan penelitian atau topik yang diminati. Penelitian diawali dengan menemukan artikel yang dicari sesuai dengan kata kunci yang digunakan yang nantinya berhubungan dengan topik penelitian yang akan diteliti. Penelitian ini bertujuan untuk melakukan kajian literature review Affiliation: terkait Pengaruh Model Pembelajaran Berbasis Problem Based Learning pada Hasil Belajar Matematika. Metode yang digunakan dalam penelitian ini adalah metode SLR (Systematic Literature Review). Pengumpulan data dilakukan dengan mendokumentasi semua artikel yang memiliki penelitian serupa pada artikel yang telah diterbitkan pada jurnal tertentu. Sumber data berasal dari dokumen jurnal yang telah terindex dan diberikan data elektronik ISSN. Pengumpulan data diperoleh dari Google Scholers. Populasi data dalam penelitian ini adalah jurnal yang berfokus dalam model pembelajaran berdasarkan hasil belajar matematika siswa .Artikel yang digunakan pada penelitian ini sebanyak 5 artikel jurnal nasional yang diperoleh dari database google scholar menggunakan aplikasi Harzing’s Publish or Perish.  Hasil penelitian ini  menggunakan model pembelajaran Problem Based Learning pada mata pelajaran matematika untuk siswa Sekolah Dasar.

This study aims to develop and produce interactive multimedia-based mathematics learning media using Adobe Flash CS 6 software that is valid, practical, and effective. This type of research is development research which refers to the ADDIE development model. This study used research instruments, the instruments used were material validation questionnaires, media, student and teacher responses regarding practicality and regarding the effectiveness of the learning media used. This study's findings indicate that: 1) The learning media's validity score of 3.245 places it in the valid category, while the media's validity score of 3.30 places it in the very valid category. 2) In the very practical category, the practicality of learning media received a score of 3.81, and in the very practical category, student assessments received a score of 3.49. 3) Learning media have a moderate or effective effectiveness score of 0.5.

The use of learning media that is less than optimal is the basis of this research with the aim of developing learning media for Android applications and knowing the process of student answers. This type of research is development research with a model adapted from Borg and Gall with a  sample of class VIII-2 students of Santa Maria Private Middle School Medan, totaling 25 people. From the results of the study, it was obtained (1) the quality of the developed learning media met the valid, practical, and effective categories with an assessment by media experts of 3.82 and material experts of 3.87, practicality from the student response with a score of 3.61 and the teacher's response with a score of 4, and the effectiveness of classical student learning completeness reaches 92% of students and an n-gain score of 0.62 which means an increase in mathematical visual abilities is included in the moderate category. (2) The process of student answers shows that students have been able to identify problems, understand problems, generalize patterns and explain what is obtained, which means that students have fulfilled each indicator of mathematical visual ability, namely looking, seeing, imagining, showing and telling.

Coffee is an agricultural product that not only functions as a fresh drink, but also comes from an annual plant. Indonesia is known as one of the largest countries in coffee production in the world after Brazil, Vietnam and Colombia in 2017. There are two of the most commonly known varieties of coffee, namely arabica coffee (Coffea arabica) and robusta coffee (Coffea canephora). Due to the similarities between the two types of coffee beans, many people, especially those who are not experienced in the world of coffee, have difficulty telling the difference. Therefore, we need a tool that can help overcome this problem, such as smartengine which can classify arabica and robusta coffee beans. The development of this smartengine follows the Software Developer Life Cycle method using a spiral approach which involves several cycle stages. The first stage involves creating a deep learning model using the Deep Learning Life Cycle method which consists of several steps. In the second stage, deep learning models are provided as a service that can be used by other applications through application programming interfaces (APIs). For smartengine implementation, Google Colab with Keras API and TensorFlow backend is used. This smartengine has the ability to detect coffee beans and also allows the retrain process if needed. Testing is carried out using the blackbox method, where the feature functionality of the smartengine is tested. This research succeeded in developing a smartengine that can detect Arabica and Robusta coffee beans.

This research is apreliminary research that contains efforts to implement the snowball throwing learning model at the elementary level, especially in grade 4. This study also aims to determine student responses to the application of the snowball throwing learning model at the elementary school level. This study used a research design with the "One Shot Case Study" design, namely research conducted by giving certain treatment to research subjects, in this case the snowball throwing learning model. The data obtained were analyzed using research methods for students. In this study the authors used a data collection technique in the form of a questionnaire technique. The questionnaire used in this research is a student learning motivation questionnaire. The results of this study indicate that students' responses to learning using the snowball throwing model received a positive response with a percentage of 88.43%.

This study aims to determine the feasibility of SETS (Science, Environment, Technology, And Society) based modules on colloidal system, determine student learning outcomes after using SETS-based modules in learning and student responses to the modules. This study uses a 4-D development model consisting of define, design, development, and dissemination. This research was conducted at SMA Negeri 11 Medan which was carried out for 7 months. The feasibility of module was seen through a feasibility questionnaire for media and material experts based on the BSNP standard with a Likert scale of 1 to 5. Validation data obtained from media and material experts on SETS-based modules obtained an average percentage of 83.58% with the category valid/worthy. Student learning outcomes were obtained through the calculation of N-Gain test, which was equal to 0.74 in the high category and the average posttest score of students was 84.67. Student responses to the SETS-based module obtained an average percentage of 91.24% with a very high questionnaire interpretation. Based on the results obtained by the researcher, it can be concluded that this SETS-based module is appropriate for use in colloidal learning with a high student learning success rate and student responses that fall into very good criteria.

This research was conducted with the aim of producing digital learning media using the Smart Apps Creator through a Realistic Mathematics Education approach that is valid, effective, and able to improve students' mathematical problem solving abilities in the matter of a system of two-variable linear equations. This type of research is Research and Development (R&D) with the ADDIE model. From the research results, it was obtained that the media and material validity values were 93.6% and 93% with very valid categories. The practicality of the media through the results of the teacher's response questionnaire obtained a practicality value of 97.3% in the very practical category and the results of the student response questionnaire for the small group test and large group test obtained values of 90.9% and 91.4% in the very practical category. Then the value of effectiveness is seen through the mastery of classical learning and the results of the student response questionnaire obtained percentages of 87.5% and 94.05% with very effective categories. Improving problem solving abilities in students, the results obtained are that the level of students' problem solving abilities is at a percentage of 92% with a very high category, while based on the N-Gain test the average value obtained by students is 0.6473 which means there is an increase in problem solving abilities in students medium category. So based on the results obtained it can be concluded that the learning media developed in this study are valid, practical, effective, and able to improve students' mathematical problem solving abilities.