Heru Kurniawan, Prastyo Budi Darmono, M. Mursalin, Yilun Shang, Robert Weinhandl, Rajinder Sharm
{"title":"Describe mathematical creative thinking skills and problem-solving strategies by prospective teacher students on non-routine problems","authors":"Heru Kurniawan, Prastyo Budi Darmono, M. Mursalin, Yilun Shang, Robert Weinhandl, Rajinder Sharm","doi":"10.33122/ijtmer.v5i2.140","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.140","url":null,"abstract":"This study aims to investigate and describe how creative thinking skills and problem-solving strategies are used by prospective mathematics teacher students in solving non-routine problems. Non-routine problems given to the subject require the use of mathematical conceptual understanding and procedural knowledge or algorithms used to find solutions to solve them. The results of the analysis of student-teacher solutions show that each student uses at least two problem-solving strategies. The most frequently used strategies are using algebraic manipulation, making logical reasoning with diagrams/models, and trial and error. Students with high categories show proficiency in using appropriate problem-solving strategies and students with lower categories still show an introduction to solving strategies so that they are confused about choosing the right strategy for a particular problem.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129425455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Edyan Saputra, M. Marhami, Raduan B, M. Mursalin, N. Azmi
{"title":"The development of media learning using plotagon software on circle material","authors":"Edyan Saputra, M. Marhami, Raduan B, M. Mursalin, N. Azmi","doi":"10.33122/ijtmer.v5i2.102","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.102","url":null,"abstract":"The challenges in learning mathematics at schools could be worrying because the delivery is usually less interesting which makes students feel bored with the lesson. Mathematics from the student’s perspective is considered a scary subject because it is very difficult to understand. This study aims to determine the feasibility level of learning media using Plotagon software in Mathematics Subjects at SMA Negeri 1 Terangun. This type of study is research and development (RD). The model used in this study is the Analyze, Design, Development, Implementation, Evaluation (ADDIE) model. The subjects of this study were students of class XI IPA I SMA Negeri 1 Terangun. Data collection techniques were carried out by questionnaires and observations. The instrument used is a questionnaire using a Likert scale. The results of the study obtained were Plotagon Learning Media in the Mathematics Subject Circle material received an assessment with average score 3,36 from material experts, 3,45 from media experts, 3,80 from small group students and 3,83 from large group students. So it can be concluded that the Plotagon software learning media in the Mathematics subject matter Circle is suitable for learning at SMA Negeri 1 Terangun.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114218182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mathematics teacher competency analysis during online learning","authors":"Jitu Halomoan Lumbantoruan, Bernadetha Nadeak","doi":"10.33122/ijtmer.v5i2.132","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.132","url":null,"abstract":"This study aims to find out where the difficulty of teacher competence is when implementing online mathematics materials. When online learning mathematics material, many students complain and get low learning outcomes. There are 92% of students have difficulty learning mathematics online. The basis of this problem needs to be analyzed where the difficulty of mathematics teacher competence in online learning. Data collection techniques with observations and shared instruments. The analysis is done by presenting the data, reducing it, and drawing conclusions. Results, 1) Online learning with the 2013 curriculum is still 95%. 2) There is no preparation and only the provision of package books. Student assessment of professional teacher competence 62% disagree and 45% pedagogically disagree, this disagreement is because the module was not prepared by the teacher himself. 3) 57, 14% disagree with the assessment method, the material being tested is more difficult than what is taught, and this is the cause of low learning outcomes. 4) Difficulty operating media, writing symbols, proving, explaining concepts, internet network, and correcting assignments. In conclusion, the difficulty lies in teachers with pedagogical competence with minimal learning aids and professional competence who cannot explain concepts in the media and are not assisted by self-made modules.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114862790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hedi Hedi, Anie Lusiani, Anny Suryani, Agus Binarto
{"title":"Forecasting COVID-19 cases for Top-3 countries of Southeast Asian Nation","authors":"Hedi Hedi, Anie Lusiani, Anny Suryani, Agus Binarto","doi":"10.33122/ijtmer.v5i2.138","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.138","url":null,"abstract":"Several countries continue controlling the spread of the corona virus to decrease the number of new COVID-19 cases. Currently some Southeast Asian countries require an estimate of the num-ber of daily new COVID-19 cases of in the future in order to reopen or consider lifting strict pre-vention policies. This study applies ARIMA and SARIMA forecasting models to predict the de-cline in the number of new cases in three Southeast Asian countries. The first modelling is carried out using the ARIMA model with optimized model parameters based on the Akaike Information Criterion (AIC) and Bayesian Information Criterion (BIC) analysis. Then, the Mean Absolute Error (MAE), Root Mean Square Error (RMSE) and Mean Absolute Percent Error (MAPE) are evaluated is applied a criterion to select the best model. The best ARIMA and SARIMA models are selected manually and they are used to predict the number of new cases in three Southeast Asian coun-tries. It is expected that the number of new cases in these countries will experience a significant decline in the next month from September 2021. The prediction of SARIMA model indicates a better result than the ARIMA model which confirms the existence of a season in COVID-19 data.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133298379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Digitization of laboratory equipment using PhET simulation media in applied chemistry practicum","authors":"Juwairiah Juwairiah, Meisi Riana, Windiani Windiani","doi":"10.33122/ijtmer.v5i2.131","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.131","url":null,"abstract":"Understanding the concepts of applied chemistry in the Graphic Engineering Study Program at the Creative Media State Polytechnic is very important to support their field of expertise in understanding more complex material. The Applied Chemistry course consists of various abstract concepts, including acids and bases. The use of computer programs such as PhET media is very important to explain the abstract material. The aim of this study was to describe the use of PhET Simulation, knowing the effectiveness of using PhET Simulation media in acid-base practicum, knowing the advantages and disadvantages of using PhET Simulation in acid-base practicum, and the purpose of this study was to see student learning outcomes after the application of PhET media in learning. The method used is a descriptive method that begins with the manufacture of media devices and student worksheets and performs a descriptive analysis of learning outcomes after the application of learning. The trial subjects in this study were first semester students who programmed the Applied Chemistry course. The research instrument is a learning outcomes test which finds 10 numbers of true and false questions and 5 numbers of essay questions. The results showed that the application of PhET media was effective in acid and base practicum. The average student learning outcomes are 65 ± SD 18 (good category). Based on student assessments after learning, it was found that students were very happy to learn by using PhET media.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121826746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nur Cahaya Wigati, P. D. Sampoerno, Meiliasari Meiliasari, J. W. Kusuma
{"title":"Improving the ability to understand the concept of building space through PMRI-based with the help of smart classroom applications for students of primary school","authors":"Nur Cahaya Wigati, P. D. Sampoerno, Meiliasari Meiliasari, J. W. Kusuma","doi":"10.33122/ijtmer.v5i2.135","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.135","url":null,"abstract":"The quality of education must be improved in order to create quality education. The Covid-19 virus that has infected most Indonesians since early March 2020 has impacted all areas of community movement. Restrictions on personal activities until the Implementation of Community Activity Restrictions (PPKM) began to be enforced. Physical distancing is one of the efforts made to limit community interaction. The government also decided to disburse students and shift schools' teaching and learning process to at home. Distance learning or online learning requires all school residents to work more actively in teaching and learning activities. The ability to understand concepts is one of the skills that are expected to be achieved in mathematics subjects. This study aims to determine the application of learning with the PMRI Approach assisted by the Smart Classroom application in improving the ability to understand the concept of building a classroom for grade V students of SDN Jakamulya III Bekasi City. This research was conducted quantitatively with 6 subjects as the object of study. The results of the study show that there is an increase in mathematics learning with the PMRI approach with the help of the Smart Classroom application. The results showed that the PMRI approach assisted by the Smart Classroom application for mathematics subjects in grade V elementary schools could help students understand the concept of building spaces. This is shown by the increase in positive responses from the start of cycles I, II, and III in scoring and interviews. Students are happy and facilitate learning through the Smart Classroom app. Moreover, there are online and offline learning systems and hybrid learning.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121102737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. T. Qurohman, Prasetya Putra Nugraha, Syaefani Arif Romadhon, Ahmad Syahid Fathurrohman
{"title":"The influence of model of eliciting activities on improving mathematical problem-solving ability","authors":"M. T. Qurohman, Prasetya Putra Nugraha, Syaefani Arif Romadhon, Ahmad Syahid Fathurrohman","doi":"10.33122/ijtmer.v5i2.125","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.125","url":null,"abstract":"The aims of this study is to improving problem-solving skills by combining the Model of Eliciting Activities (MEA) with Learning Model on the level of student independence. The technique used for sampling is cluster random sampling, namely by selecting two experimental classes and two control classes take one experimental class and one control class. Sample are students in grade 2A and 2B in Academic Year 2021/2022 with eigen-values material from Mechanical Engineering Study Program. In this study takes variables, namely problem-solving ability as a result with parameters i.e. with or without Model of Eliciting Activities (MEA). Data collection in unison with documentation, questionnaires, and test methods. And data processing using a two-way ANAVA 2 in unison with a 2x2 factorial design interaction as well as a determinant test using a benpheroni test. Based on the research, provide an understanding that students will gain learning in unison with the MEA get high problem-solving abilities than students Where students who get treatment with learning is carried out conventionally, and students who have a high level of comfort have high problem-solving ability results abilities compared to students who have a fairly low level of independence, so they have an influence on self-reliance and learning methods on students' problem solving Capabilities. Thus, students who have high comfort and get learning with the Eliciting Activities Model have a higher problem-solving ability compared to other types of learning interactions in this study.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132451588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Model SMEs digital disruption management with business model canvas and integer programming","authors":"M. Mas’ud, A. Wahid","doi":"10.33122/ijtmer.v5i2.134","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.134","url":null,"abstract":"The Industrial Era 5.0 and the current covid 19 pandemic have made almost all large, medium, and small companies including MSMEs transform by strengthening their business online to survive and compete, but with the development of technology and intense business competition indirectly many penetrate the market and segments that are not good for other competitors, one of which is the MSME sector for processing products from silkworms in Pasuruan Regency. The purpose of this study is to model the management of digital disruption in SMEs Handicraft processing of silkworm products in Pasuruan Regency through the integration approach of Business Model Canvas (BMC) and integer programming. The results showed that the management of digital disruption of SMEs in the craft of processing products from silkworms requires understanding to be able to optimally utilize online media, especially Facebook, Instagram, and WhatsApp in an effort to market products to create added value and to be created into various types of variations so as to increase the selling price. high with an increase rate of 5% at the beginning of its implementation.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128193731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of mathematics learning devices with a problem based learning model oriented on the mathematics problem solving ability","authors":"Meryannav Sabilah, Fitri Yolanda","doi":"10.33122/ijtmer.v5i2.136","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.136","url":null,"abstract":"The aims of this study is to produce a mathematical learning device with a Problem Based Learning model oriented to mathematical problem-solving abilities on the subject matter of the size of the concentration and distribution of valid and practical data for class VIII SMPN 1 Rengat Barat. This research on the development of mathematics learning tools uses a 4-D model, namely: 1) Define, 2) Design, 3) Develop, and 4) Disseminate. The data collection instruments used were RPP validation questionnaire sheets and LKPD validation questionnaire sheets and practicality sheets. The data collection technique used was non-test with a questionnaire validation of learning devices. The analytical technique used is descriptive statistical analysis. From the results of the study, it was obtained that the average value of RPP validation was 88.73% with a very valid category, while the validation in terms of RPP aspects obtained an average value of 89.24% with a very valid category. The results of the analysis of the average validation of LKPD are 87.5% with a very valid validation level, while the validation in terms of aspects obtained an average value of 87.98% with a very valid category. The average practicality of learning tools obtained a value of 85.4% with very practical category. Based on this study, it was found that the mathematics learning device with the Problem Based Learning model oriented to mathematical problem-solving abilities on the subject matter of the size of concentration and data distribution of class VIII students of SMPN 1 Rengat Barat has been tested for validity and practicality.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115668863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mathematics communication as an alternative to overcome the obstacles of undergraduate students in mathematical proof","authors":"Dewi Risalah, H. Hodiyanto","doi":"10.33122/ijtmer.v5i2.141","DOIUrl":"https://doi.org/10.33122/ijtmer.v5i2.141","url":null,"abstract":"Experiences at the educational personnel education institution, Department of Mathematics Education Institute of Teacher Training and Education Pontianak (IKIP) shows that students often had difficulty in proving propositions (theorems in mathe-matics). The alternative offered through this study was to develop students' abilities in proof through mathematical communication. The study method used in this study was qualitive research, case study. The subjects used in this study consisted of two un-dergraduate students who had been taught real analysis introductions and. The data collection tool used was tests and interview. Data analysis techniques used was de-scriptions: data reduction, data display and conclusion. Based on the results of re-search, study of theory and discussion, it could be concluded in this study that the student obstacles in answering mathematical proof questions are the students have difficulty in writing mathematical symbolic and inability in mathematical proof. But after being given didactic anticipation by mathematical communication, the ability of students to answer mathematical proof questions has increased. Thus, mathematical communication can be used as an alternative to overcome obstacles or difficulties for students in solving mathematical proof problems.","PeriodicalId":280543,"journal":{"name":"International Journal of Trends in Mathematics Education Research","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128470672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}