Mutmainnah Tahir, Thamrin Tayeb, Muh. Rusydi Rasyid, F. Nur, M. Munawarah
Abstract: The study aimed to compare the cooperative learning model of Student Team Achievement Division (STAD) and Team Assisted individualization (TAI) types on the mathematical communication skill of class VIII students of State Junior High School 3 Sungguminasa of Gowa Regency. It was quasi-experimental research with non-equivalent control group design. The study population was all the students of class VIII of State Junior High School 3 Sungguminasa. Descriptive and inferential statistical analysis with independent sample t-test were used in analysing the data. Based on the results of the descriptive statistical analysis, the mean score of the students' mathematical communication skill using cooperative learning model of STAD type was about 65.63% at the high category and the rest score was at the very high category; while the mean score of the students’ mathematical communication skill using the cooperative learning model of TAI type was about 62.5% at the high category and the rest score was at very high category. Based on the inferential analysis, it was obtained the results that there were the differences of the mean scores of the students’ mathematical communication skill who possessed the STAD and TAI learning types, and TAI learning type was more effective than the STAD learning type to enhance the students' mathematical communication skill.
{"title":"The Cooperative Learning Comparison of Student Teams Achievement Division Type and Teams Assisted Individualization type Toward The Students’ Mathematical Communication Skill","authors":"Mutmainnah Tahir, Thamrin Tayeb, Muh. Rusydi Rasyid, F. Nur, M. Munawarah","doi":"10.26858/jdm.v8i2.9148","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.9148","url":null,"abstract":"Abstract: The study aimed to compare the cooperative learning model of Student Team Achievement Division (STAD) and Team Assisted individualization (TAI) types on the mathematical communication skill of class VIII students of State Junior High School 3 Sungguminasa of Gowa Regency. It was quasi-experimental research with non-equivalent control group design. The study population was all the students of class VIII of State Junior High School 3 Sungguminasa. Descriptive and inferential statistical analysis with independent sample t-test were used in analysing the data. Based on the results of the descriptive statistical analysis, the mean score of the students' mathematical communication skill using cooperative learning model of STAD type was about 65.63% at the high category and the rest score was at the very high category; while the mean score of the students’ mathematical communication skill using the cooperative learning model of TAI type was about 62.5% at the high category and the rest score was at very high category. Based on the inferential analysis, it was obtained the results that there were the differences of the mean scores of the students’ mathematical communication skill who possessed the STAD and TAI learning types, and TAI learning type was more effective than the STAD learning type to enhance the students' mathematical communication skill.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"175-181"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42081363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study was conducted to investigate the effects of memorizing Al-Qur’an on the ability of mathematical reasoning. The population of this study was all students of grade IX of Al Fityan Gowa Integrated Islamic JunioR High School, Indonesia, totaling 93 people. The sampling technique used is saturated sampling. Data on mathematical reasoning ability was obtained from the results of tests on mathematical reasoning and the ability to memorize Al-Qur’an was taken from the final score of Tahfidz (memorization) Al-Qur’an subjects. Data were analyzed by simple linear regression. The result revealed that there was a significant relationship between memorizing Al-Qur’an and the ability of mathematical reasoning. The regression linear model was able to be built. The coefficient of regression is 1.231. The score indicated that every increase of one unit of memorizing Al-Qur’an will increase the ability of mathematical reasoning by 1,232 points. The coefficient of determination is 0.449 that indicated the ability of mathematical reasoning was influenced by the memorization Al-Qur’an by 20.2%.
{"title":"Effects of Memorizing Al-Qur’an On Mathematical Reasoning","authors":"Rosdiana Im, Ikrimah","doi":"10.26858/jdm.v8i2.14143","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.14143","url":null,"abstract":"This study was conducted to investigate the effects of memorizing Al-Qur’an on the ability of mathematical reasoning. The population of this study was all students of grade IX of Al Fityan Gowa Integrated Islamic JunioR High School, Indonesia, totaling 93 people. The sampling technique used is saturated sampling. Data on mathematical reasoning ability was obtained from the results of tests on mathematical reasoning and the ability to memorize Al-Qur’an was taken from the final score of Tahfidz (memorization) Al-Qur’an subjects. Data were analyzed by simple linear regression. The result revealed that there was a significant relationship between memorizing Al-Qur’an and the ability of mathematical reasoning. The regression linear model was able to be built. The coefficient of regression is 1.231. The score indicated that every increase of one unit of memorizing Al-Qur’an will increase the ability of mathematical reasoning by 1,232 points. The coefficient of determination is 0.449 that indicated the ability of mathematical reasoning was influenced by the memorization Al-Qur’an by 20.2%.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"113-118"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44119104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Spatial material was material that was very useful in everyday life. Students often had difficulty in imagining spatial objects. Students would had no difficulty in imagining spatial objects if they had good spatial ability. Resilience was needed to learn spatial ability. The purpose of this study was to determine whether there was a relationship between resilience and spatial ability and how many the coefficient correlation was, and to find out dominant indicators of resilience so that there was a relationship between resilience and spatial ability in students in the upper, middle, and lower groups. This research was a qualitative-quantitative mixed research. The research instrument was used a test of spatial ability in distance and resilience scale material. The data analysis technique was used the correlation test and data triangulation method. The conclusions of this study were (1) there was a relationship between resilience and spatial ability of 56%, (2) indicators of resilience 'willing to socialize, easy to provide assistance, discuss with peers, and adapt to the environment' were dominant in the upper, middle, and lower groups , resilience indicator ‘use failure experiences to build self-motivation’ was dominant in the upper group, resilience indicators ‘show curiosity, reflect, examine, utilize a variety of dominant sources in the upper group, indicators of resilience perseverance, confidence, work hard, not easy to give up facing problems, failures and uncertainties' were dominant in the lower classes.
{"title":"Correlation of Resilience and Spatial Ability In Distance Material","authors":"Destia Wahyu Hidayati, Arie Wahyuni","doi":"10.26858/jdm.v8i2.13861","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.13861","url":null,"abstract":"Spatial material was material that was very useful in everyday life. Students often had difficulty in imagining spatial objects. Students would had no difficulty in imagining spatial objects if they had good spatial ability. Resilience was needed to learn spatial ability. The purpose of this study was to determine whether there was a relationship between resilience and spatial ability and how many the coefficient correlation was, and to find out dominant indicators of resilience so that there was a relationship between resilience and spatial ability in students in the upper, middle, and lower groups. This research was a qualitative-quantitative mixed research. The research instrument was used a test of spatial ability in distance and resilience scale material. The data analysis technique was used the correlation test and data triangulation method. The conclusions of this study were (1) there was a relationship between resilience and spatial ability of 56%, (2) indicators of resilience 'willing to socialize, easy to provide assistance, discuss with peers, and adapt to the environment' were dominant in the upper, middle, and lower groups , resilience indicator ‘use failure experiences to build self-motivation’ was dominant in the upper group, resilience indicators ‘show curiosity, reflect, examine, utilize a variety of dominant sources in the upper group, indicators of resilience perseverance, confidence, work hard, not easy to give up facing problems, failures and uncertainties' were dominant in the lower classes.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"149-153"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47032607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study is to obtain a linear program module based on problem solving with the help of QSB applications that meet the valid, effective and practical criteria. Type of research is a method of research and development (Research and Development) with the design model of ADDIE (Analyze, Designed, Development, Implementation, and Evaluation). The subjects of the study were Grade X students of SMK I Tanah Miring Merauke Regency, Papua Province. Module trials are carried out with stages of expert trials, legibility testing, and field trials. Experienced trials and legibility testing used a questionnaire, while field trials used the experimental one group pretest post-test design. The research instruments used were validation sheets, practical sheets, and learning achievement test sheets. The steps in this development are researching and gathering information, selecting and developing teaching materials, initial trials, revisions, main trials, and final product revisions. Product validation was validated by experts using a validation sheet. The practicality of the product is assessed by the product user, that is, the student who gets the treatment. The effectiveness of the product was tested using inferential statistical tests by looking at differences in the percentage of students' mastery learning from this cores pre-test and post-test. The results obtained by the results of validation in the category of very valid average score of student response questionnaire was 3.66 in the practical category and the percentage of percentage post-test of students 70.9% of students completed so it can be said to be effective.
本研究的目的是在满足有效、有效和实用标准的QSB应用程序的帮助下，获得一个基于问题解决的线性程序模块。研究类型是一种研究和开发方法（研究和开发），采用ADDIE（分析、设计、开发、实施和评估）的设计模型。研究对象是巴布亚省SMK I Tanah Miring Merauke Regency的X年级学生。模块试验分为专家试验、易读性测试和现场试验阶段。有经验的试验和易读性测试使用问卷，而现场试验使用实验性的一组前测后测设计。使用的研究工具包括验证表、实践表和学习成绩测试表。开发的步骤包括研究和收集信息、选择和开发教材、初步试验、修订、主要试验和最终产品修订。产品验证由专家使用验证表进行验证。产品的实用性由产品用户，即接受治疗的学生来评估。该产品的有效性是通过推断统计测试来测试的，通过观察学生在该核心测试前和测试后的掌握学习百分比的差异。学生回答问卷非常有效平均分类别的验证结果在实践类别中为3.66，学生完成后测的百分比为70.9%，可以说是有效的。
{"title":"Development of Module Linear Program Based Problem Solving Assisted QSB Application","authors":"N. Nurhayati, O. Dadi","doi":"10.26858/jdm.v8i2.14029","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.14029","url":null,"abstract":"The purpose of this study is to obtain a linear program module based on problem solving with the help of QSB applications that meet the valid, effective and practical criteria. Type of research is a method of research and development (Research and Development) with the design model of ADDIE (Analyze, Designed, Development, Implementation, and Evaluation). The subjects of the study were Grade X students of SMK I Tanah Miring Merauke Regency, Papua Province. Module trials are carried out with stages of expert trials, legibility testing, and field trials. Experienced trials and legibility testing used a questionnaire, while field trials used the experimental one group pretest post-test design. The research instruments used were validation sheets, practical sheets, and learning achievement test sheets. The steps in this development are researching and gathering information, selecting and developing teaching materials, initial trials, revisions, main trials, and final product revisions. Product validation was validated by experts using a validation sheet. The practicality of the product is assessed by the product user, that is, the student who gets the treatment. The effectiveness of the product was tested using inferential statistical tests by looking at differences in the percentage of students' mastery learning from this cores pre-test and post-test. The results obtained by the results of validation in the category of very valid average score of student response questionnaire was 3.66 in the practical category and the percentage of percentage post-test of students 70.9% of students completed so it can be said to be effective.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"143-148"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48034639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mathematical representation is the ability to express ideas or definitions raised by the students when solving problems. At now, most students have difficulties in the ability of mathematical representation. The difficulty of this mathematical representation needs to be analyze the causes, including analysis based on gender differences. This type of research is a qualitative study which aims to systematically describe the ability of mathematical representation based on gender differences. The subjects of the study was grade IX students at SMP Negeri 4 in Natar, South Lampung. Research subjects numbered 31 people, consisti of 16 boys and 15 girls. Data was collected through tests and observations, and data were analyze descriptively based on 3 indicator levels, namely visual representations, mathematical expressions or similarty, and written words or texts. The results showed that there were differences in representation when viewed regarding gender, where girls make more representation than boys.
数学表征是学生在解决问题时表达想法或定义的能力。目前，大多数学生在数学表达能力方面存在困难。这种数学表示的困难需要分析原因，包括基于性别差异的分析。这类研究是一项定性研究，旨在系统地描述基于性别差异的数学表征能力。这项研究的对象是南楠榜纳塔尔SMP Negeri 4的九年级学生。研究对象共有31人，包括16名男孩和15名女孩。通过测试和观察收集数据，并根据3个指标水平对数据进行描述性分析，即视觉表征、数学表达或相似性以及书面文字或文本。结果表明，从性别角度来看，代表性存在差异，女孩的代表性高于男孩。
{"title":"The Ability of Mathematical Representation of Junior High School Students on Circle Material Based on Gender Differences","authors":"Rena Soviana, S. Sutiarso, Nurhanurawati .","doi":"10.26858/jdm.v8i2.13946","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.13946","url":null,"abstract":"Mathematical representation is the ability to express ideas or definitions raised by the students when solving problems. At now, most students have difficulties in the ability of mathematical representation. The difficulty of this mathematical representation needs to be analyze the causes, including analysis based on gender differences. This type of research is a qualitative study which aims to systematically describe the ability of mathematical representation based on gender differences. The subjects of the study was grade IX students at SMP Negeri 4 in Natar, South Lampung. Research subjects numbered 31 people, consisti of 16 boys and 15 girls. Data was collected through tests and observations, and data were analyze descriptively based on 3 indicator levels, namely visual representations, mathematical expressions or similarty, and written words or texts. The results showed that there were differences in representation when viewed regarding gender, where girls make more representation than boys.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"137-142"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42749139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Melania Eva Wulanningtyas, Suswanti, Nafida Hetty Marhaeni
Problem solving mathematics error in a matter of story on ratio material worth and turn around values still often occur, so we need a remedial program to minimize these errors. For this reason, this study aims to determine the types of errors, remedial program steps and types of errors after the remedial program. This research is a qualitative descriptive study with the data collection method uses tests, interviews, and personal documents. The study was conducted at eighth grade of SMP Pangudi Luhur 1 Yogyakarta. This study applies a layered validation strategy in the form of triangulation techniques, Focus Group Discussion (FGD) and the involvement of resource persons and experts. The results showed that the dominant error in the form of an error did not understand the command problem with a percentage of 43%, the error shown if every step taken by students was correct but the final result given was not a solution done with a percentage of 80% and a calculation error with a percentage of 20%. After the results are obtained remediation efforts are made. Based on the remediation results that have been made, there is a decrease in 2 categories of dominant student errors, namely mistakes not understanding the question command to a percentage of 31%, errors that are shown if each step taken by students is correct but the end result given is not a completion done to 60%. Thus, the remediation program makes fewer types of mistakes made by students than before remediation.
{"title":"The Student of Error Analysis and Remedial Program in working on the Story of Comparative Material and Turning Value","authors":"Melania Eva Wulanningtyas, Suswanti, Nafida Hetty Marhaeni","doi":"10.26858/jdm.v8i2.14344","DOIUrl":"https://doi.org/10.26858/jdm.v8i2.14344","url":null,"abstract":"Problem solving mathematics error in a matter of story on ratio material worth and turn around values still often occur, so we need a remedial program to minimize these errors. For this reason, this study aims to determine the types of errors, remedial program steps and types of errors after the remedial program. This research is a qualitative descriptive study with the data collection method uses tests, interviews, and personal documents. The study was conducted at eighth grade of SMP Pangudi Luhur 1 Yogyakarta. This study applies a layered validation strategy in the form of triangulation techniques, Focus Group Discussion (FGD) and the involvement of resource persons and experts. The results showed that the dominant error in the form of an error did not understand the command problem with a percentage of 43%, the error shown if every step taken by students was correct but the final result given was not a solution done with a percentage of 80% and a calculation error with a percentage of 20%. After the results are obtained remediation efforts are made. Based on the remediation results that have been made, there is a decrease in 2 categories of dominant student errors, namely mistakes not understanding the question command to a percentage of 31%, errors that are shown if each step taken by students is correct but the end result given is not a completion done to 60%. Thus, the remediation program makes fewer types of mistakes made by students than before remediation.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"8 1","pages":"161-166"},"PeriodicalIF":2.6,"publicationDate":"2020-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45754172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study is a quasi-experimental study with a pretest-posttest one group design. The population in this study is all students majoring in mathematics education at an Asahan University, North Sumatra. Sampling was done by using the purposive sampling technique. Students work under the cooperative learning method Team-Accelerated Instruction (TAI) type. This research was conducted to study the enhancement of students’ logical thinking ability after cooperative learning TAI types were implemented. The instruments used in this study are logical thinking ability tests, observation sheets, and student interviews. The data were analyzed by using t-test. From the result of data analysis, it is found that there is a significant enhancement in the logical thinking ability of the students’ who work under the cooperative learning method TAI type. Therefore, cooperative learning Team-Accelerated Instruction (TAI) type can be alternative learning to improve students’ logical thinking ability.
{"title":"PENINGKATAN KEMAMPUAN BERPIKIR LOGIS DENGAN MENGGUNAKAN METODE PEMBELAJARAN KOOPERATIF TIPE TEAM-ACCELERATED INSTRUCTION","authors":"Dwi Maulida Sari, Rizky Nurul Hafni","doi":"10.34007/jdm.v1i2.317","DOIUrl":"https://doi.org/10.34007/jdm.v1i2.317","url":null,"abstract":"This study is a quasi-experimental study with a pretest-posttest one group design. The population in this study is all students majoring in mathematics education at an Asahan University, North Sumatra. Sampling was done by using the purposive sampling technique. Students work under the cooperative learning method Team-Accelerated Instruction (TAI) type. This research was conducted to study the enhancement of students’ logical thinking ability after cooperative learning TAI types were implemented. The instruments used in this study are logical thinking ability tests, observation sheets, and student interviews. The data were analyzed by using t-test. From the result of data analysis, it is found that there is a significant enhancement in the logical thinking ability of the students’ who work under the cooperative learning method TAI type. Therefore, cooperative learning Team-Accelerated Instruction (TAI) type can be alternative learning to improve students’ logical thinking ability.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"1 1","pages":"111-116"},"PeriodicalIF":2.6,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47289530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In solving the problems they face, students must think so that they can apply the right concepts to the problems they face. This process can run effectively in learning if students have good reflective thinking skills. Mathematical reflective thinking is one of the thought processes needed in the process of solving mathematical problems. The purpose of this study was to determine the increase in reflective thinking skills between students who received learning with problem-based learning and conventional learning. The research method used is quantitative research with a quasi-experimental design. The population of this study was students of grade 7 MTs Islmaiyah Medan in the academic year 2019/2020. The sample in this study was students of class 7-A and 7-B MTs Islamiyah Medan. The data were collected by giving a reflective thinking ability test instrument. The data obtained were analyzed using a two-way ANOVA statistical test. Based on the research findings, it was found that there was an increase in students' reflective thinking skills taught by problem-based learning with students taught conventionally. Where the increase in reflective thinking skills between students whose learning process using problem-based learning is significantly higher than students whose learning is through conventional learning. Based on these results, it can be concluded that in an effort to foster students' mathematical abilities, the learning model used must match the characteristics of the learning model with mathematical abilities.
{"title":"PENERAPAN PROBLEM-BASED LEARNING: STUDI PADA KEMAMPUAN BERPIKIR REFLEKTIF SISWA","authors":"Fitry Wahyuni","doi":"10.34007/jdm.v1i2.319","DOIUrl":"https://doi.org/10.34007/jdm.v1i2.319","url":null,"abstract":"In solving the problems they face, students must think so that they can apply the right concepts to the problems they face. This process can run effectively in learning if students have good reflective thinking skills. Mathematical reflective thinking is one of the thought processes needed in the process of solving mathematical problems. The purpose of this study was to determine the increase in reflective thinking skills between students who received learning with problem-based learning and conventional learning. The research method used is quantitative research with a quasi-experimental design. The population of this study was students of grade 7 MTs Islmaiyah Medan in the academic year 2019/2020. The sample in this study was students of class 7-A and 7-B MTs Islamiyah Medan. The data were collected by giving a reflective thinking ability test instrument. The data obtained were analyzed using a two-way ANOVA statistical test. Based on the research findings, it was found that there was an increase in students' reflective thinking skills taught by problem-based learning with students taught conventionally. Where the increase in reflective thinking skills between students whose learning process using problem-based learning is significantly higher than students whose learning is through conventional learning. Based on these results, it can be concluded that in an effort to foster students' mathematical abilities, the learning model used must match the characteristics of the learning model with mathematical abilities.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69695558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study was to determine the differences in the improvement of students' mathematical problem-solving abilities with the Contextual Teaching and Learning approach in the material of the two-variable linear equation system in class X SMA Negeri 2 Pematangsiantar. This study used an experimental method with the aim of being in accordance with the previous statement to determine the difference in students' mathematical problem-solving abilities with a contextual approach and an expository approach, with a randomized pretest-posttest control group design. The average increase in problem-solving abilities in the control class was 0.1688 while the increase in problem-solving abilities in the experimental class was 0.0085. By using the t-test (SPSS), with a value of Fcount = 10.907 and a significant level of 0.05, a significant probability is obtained 0.002 <0.05, it can be concluded that there is a difference in normalized gain or an increase in problem-solving ability with conventional and contextual approaches. Based on the average gain of the control and experimental classes, the increase in the control class using the conventional approach is higher than the experimental class with the contextual approach. The difference in increasing problem-solving abilities in conventional classrooms is possible due to differences in students' entry-level abilities, which can be seen in the average pretest of each class.
{"title":"PERBEDAAN PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DENGAN PENDEKATAN CONTEXTUAL TEACHING AND LEARNING DI KELAS X SMA NEGERI 2 PEMATANGSIANTAR","authors":"W. Habeahan","doi":"10.34007/jdm.v1i2.304","DOIUrl":"https://doi.org/10.34007/jdm.v1i2.304","url":null,"abstract":"The purpose of this study was to determine the differences in the improvement of students' mathematical problem-solving abilities with the Contextual Teaching and Learning approach in the material of the two-variable linear equation system in class X SMA Negeri 2 Pematangsiantar. This study used an experimental method with the aim of being in accordance with the previous statement to determine the difference in students' mathematical problem-solving abilities with a contextual approach and an expository approach, with a randomized pretest-posttest control group design. The average increase in problem-solving abilities in the control class was 0.1688 while the increase in problem-solving abilities in the experimental class was 0.0085. By using the t-test (SPSS), with a value of Fcount = 10.907 and a significant level of 0.05, a significant probability is obtained 0.002 <0.05, it can be concluded that there is a difference in normalized gain or an increase in problem-solving ability with conventional and contextual approaches. Based on the average gain of the control and experimental classes, the increase in the control class using the conventional approach is higher than the experimental class with the contextual approach. The difference in increasing problem-solving abilities in conventional classrooms is possible due to differences in students' entry-level abilities, which can be seen in the average pretest of each class.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"48 9","pages":"85-96"},"PeriodicalIF":2.6,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41295765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Realistic mathematics learning is learning that connects and engages the surrounding environment and real experiences that students have experienced in everyday life. The objectives of this study were (1) to find out how to apply realistic mathematics learning approaches to students' problem-solving abilities in fractions material. (2) To determine student learning activities on the application of realistic mathematics learning approaches to students' problem-solving abilities on fraction material. This study uses a descriptive analysis. The subjects in this study were 7th-grade students of SMP Tunas Pelita Binjai, while the objects in this study were the students' problem-solving abilities and student activities during learning. Based on the results of the analysis, it was obtained (1) The application of a realistic mathematics learning approach to students' problem-solving abilities on fractions in Grade 7 was to present contextual problems about fractions, solve contextual problems about fractions, then compare and discuss answers and conclude learning. Based on the learning process, a percentage of 80.55% of students obtained problem-solving abilities above the low category. This shows that the realistic mathematics approach is effective for building students 'problem-solving abilities. (2) Student learning activities on the application of realistic mathematics learning approaches to students' problem-solving abilities on fraction material in Grade 7 are in the good category with a final score of 80.14. So it can be suggested that in the teaching and learning process it is expected that the teacher uses a realistic mathematics learning approach.
{"title":"PENERAPAN PENDEKATAN PEMBELAJARAN MATEMATIKA REALISTIK TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA","authors":"A. Fatimah","doi":"10.34007/jdm.v1i2.256","DOIUrl":"https://doi.org/10.34007/jdm.v1i2.256","url":null,"abstract":"Realistic mathematics learning is learning that connects and engages the surrounding environment and real experiences that students have experienced in everyday life. The objectives of this study were (1) to find out how to apply realistic mathematics learning approaches to students' problem-solving abilities in fractions material. (2) To determine student learning activities on the application of realistic mathematics learning approaches to students' problem-solving abilities on fraction material. This study uses a descriptive analysis. The subjects in this study were 7th-grade students of SMP Tunas Pelita Binjai, while the objects in this study were the students' problem-solving abilities and student activities during learning. Based on the results of the analysis, it was obtained (1) The application of a realistic mathematics learning approach to students' problem-solving abilities on fractions in Grade 7 was to present contextual problems about fractions, solve contextual problems about fractions, then compare and discuss answers and conclude learning. Based on the learning process, a percentage of 80.55% of students obtained problem-solving abilities above the low category. This shows that the realistic mathematics approach is effective for building students 'problem-solving abilities. (2) Student learning activities on the application of realistic mathematics learning approaches to students' problem-solving abilities on fraction material in Grade 7 are in the good category with a final score of 80.14. So it can be suggested that in the teaching and learning process it is expected that the teacher uses a realistic mathematics learning approach.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":"1 1","pages":"78-84"},"PeriodicalIF":2.6,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46681826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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