International Journal of Trends in Mathematics Education Research
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How Geometer’s Sketchpad (GSP) Develops Geometry Concept Understanding
Get PDFThe purpose of this study is to show that the development of analytical geometric practicum module based on the application of Geometer Sketpched (GSP) is effective and practical in developing Geometry Concept Understanding. The research method used in this research is research and development. The research subjects in this study consisted of the subject of development and the subject of trials, students of the Mathematics Education Study Program IKIP PGRI Pontianak. Research Procedure: define, design, and development. Data collection tools used in the form of: (1) Validation sheets (2) Questionnaire responses (3) Tests (posttest). The data analysis technique used in this study uses descriptive statistics. Based on the results of research and discussion, in this study it can be concluded that: (1) the practicum module developed is classified as very valid, (2) the practicum module developed is very practical, and (3) the practicum module developed is effective in increasing students' understanding of concepts
Application of Cubic Nonlinear Regression on the Effects of Rainfall on Rice Harvest Results
Get PDFSukoharjo rice yields fluctuate every year. There is no system used for predicting rice yields in the Sukoharjo region, this results in a lack of information to increase rice production in Sukoharjo Regency.The purpose of this study is to apply the Cubic Nonlinear regression method to predict rice yields in Sukoharjo Regency, taking into account the influence of average rainfall on the prediction of rice yields.The design method uses Unified Model Language (UML), the application is designed with the vb net programming language and sql server database system, testing the functionality using the Black Box Test and testing the validity using MAPE. The calculated data is the 2016 data. The results of the study show predictions in 2017 have a MAPE of . This shows the prediction error rate of Based on the results of the functionality test, 100% of the applications function
Developing PBL To Improve Mathematical Problem Solving And Self Efficacy
Get PDFThis study is a research development (RD) that aims to find out developing Problem-Based Learning (PBL) to improve students' mathematical problem solving abilities and valid, practical and effective student self-efficacy. The procedure of this research uses research development by Borg gall, Research and Information Collecting, Planning, Developing Preliminary of Products, Preliminary Testing ,Main Product Revision, Main Field Test, Operational Product Revision, Operational Field Testing, Final Product Revision, Dissemination and Implementation, but in this study it was carried out only to the sixth stage. Data collection techniques using observation, interviews, questionnaires, and tests. The design is validated by the learning model design expert, while the learning device is validated by the material expert, media expert and education practitioner. Furthermore the design was revised according to expert opinion. It was concluded that the ability to solve mathematical problems and self efficacy with problem based learning is more effective than the ability to solve mathematical problems with conventional learning
Developing Discovery Learning Assisted Peer Tutors To Improve Problem Solving
No full textThis research is a research development that aims to find out the development of peer learning assisted by peer tutors that can improve students' mathematical problem solving abilities that are valid, practical and effective. This research procedure uses the development of research by Borg Gall. This development stage starts from the preliminary study, the preparation of learning development, validation, initial field trials, and field trials. The subjects of the study were Grade VII students of Al-Huda Jatiagung South Lampung Middle School in the odd semester of the 2019/2020 academic year. Data collection through observation, interviews, questionnaires, and tests of mathematical problem solving abilities. The results showed that the syntax or stages of discovery learning assisted by peer tutors on the set material met valid and practical criteria. Furthermore, the average N-Gain score of students' mathematical problem-solving abilities after using peer tutored assisted discovery learning is more than the average N-Gain score of mathematical problem-solving abilities of students who take conventional learning. It was concluded that the ability to solve mathematical problem solving with peer tutor-assisted discovery learning was more effective than conventional mathematical problem solving skills with conventional learning
Vocational Students’ Conception about Mathematics as Sensible Based on Personality Types
No full textThe aim of this study is describing students’ conception about mathematics as sensible based on personality types. This study is a descriptive study with qualitative approach. Subjects of this study are four female vocational students with guardian type, artisan type, rational type, and idealis type with equivalent mathematics ability and feminine gender orientation. The selection of subjects was held through personality test, mathematics ability test, and gender orientation questionnaire. The data were collected by giving problem solving task and task-based interview.The result showed that there are some differences on students’ conception about mathematics as sensible based on personality type. Students with guardian type, Artisan type, and rational type planed a problem solving strategy based on their previous experience, while student with Idealis type planed a problem solving strategy based on the mathematics concept related to the problem. Students with Guardian type and Rational type planed alternative strategy in solving problem to get better solution. Another difference is in explaining the reason of using strategy. Student with Rational type didn’t explain the reason of using the problem solving strateg
Critical Thinking Process Of Junior High School Students In Mathematical Problems Solving Based On Learning Styles
No full textThe purpose of this study is to describe the critical thinking process of eighth grade junior high school students in solving mathematical problems in terms of visual, auditory, and kinesthetic learning styles. This type of research is a descriptive exploratory study with a qualitative approach. The subjects in this study were one female student with a visual learning style, one female student with an auditory learning style, and one student with a kinesthetic learning style. All three of these subjects have intermediate and equivalent mathematical abilities. Data collection is done by giving assignments and interviews conducted twice.The results obtained in this study are (1) The critical thinking process of eighth grade junior high school students with visual learning styles in solving mathematical problems, namely at the stage of understanding the problem, the subject does interpretation, analysis, evaluation, inference, and explanation. (2) The critical thinking process of eighth grade junior high school students with auditory learning styles in solving mathematical problems, namely at the stage of understanding the problem, the subject doing interpretation, analysis, inference, and explanation. (3) The critical thinking process of eighth grade junior high school students with kinesthetic learning styles in solving mathematical problems, namely at the stage of understanding the problem, the subject doing interpretation, analysis, evaluation, inference, and explanation. At the stage of preparing a plan for completion the subject conducts analysis, evaluation, inference, and explanation
The Development of Etnomathematics Teaching Materials Using Ume Kbubu Context on Students of Mathematics Education Department
No full textThis study aims to develop Teaching Materials in the form of Ethnomatematics student worksheets using the Ume Kbubu (traditional house in Timor-Indonesia) context for undergraduate students. It is a kind of research and development using the formative Tessmer Evaluation Model. It consisted of two stages of development, namely the preliminary analysis stage and the formative evaluation stage. The subjects of the current study were students who programed Ethnomatemics, academic year 2019/2020, at Mathematics Education Study Program, Universitas Timor- Indonesia. Data collection techniques applied were tests of learning outcomes, observation, and interviews. Experts have validated the development of product design (prototypes) of student worksheets, using the Ume Kbubu context. The results of the current research have shown that students worksheet meets the criteria of practicality and effectiveness. Thus, Ethnomatematics Teaching Material using the context of Ume Kbubu is stated as useable in the process of lecturing on Ethnomathematics courses, especially for undergraduate mathematics education study programs in Universitas Timor- Indonesia
An Interface Design for Axial Induction Motor
Get PDFAsynchronous motors have been used extensively in the industry since the first discovery. Although the general working principles do not change, they can be made geometrically in the form of cylinders, spheres, cones and even discs. One of these geometries is known as axial flux machine topology which has a disc structure. Axial flux machines are remarkable in terms of their high efficiency, high power density and advantage in terms of compact structures. In this study, extended literature search of axial flux induction motor is given. In addition to the literature, axial induction motor design interface has been created by using MATLAB GUI software. This interface can communicate with ANSYS Maxwell. Thus, the dimensioning values of the machine calculated via the interface can be drawn automatically in Ansys Maxwell and it can perform numerical analysis. The obtained torque, current and efficiency data were evaluated
Media Development of “Kebun Phytagoras” for Learning Pythagoras Theorem
No full textThe aim of this development research is to develop “Kebun Pythagoras” media which can be used in learning to help student to prove the truth of the Pythagorean Theorem. The development model used is the Plomp development model (2010). The development of “Kebun Pythagoras” media goes through three steps: initial research, development step, and assessment step. The results of evaluation data are suggestuins and research trial subjects’ assessments used as an input for developing the media. The results of data analysis obtained an overall average value of criteria 3.6 of 4.0 scale included valid category. The practicality result of media utilization with an overall average value of criteria 3.5 of 4.0 scale included practical category
Effect of Thinking Aloud Pair Problem Solving (TAPPS) Method with Audio Visual Media for Students' Critical Thinking Ability
Get PDFThe study aimed to find out the effect of the Thinking Aloud Pair Problem Solving (TAPPS) learning method with Audio-visual media, Thinking Aloud Pair Problem Solving (TAPPS) learning methods and expository learning models on students' critical thinking skills conducted by researchers at the VIII SMP Middle School Bandar Lampung students. The method used in this study is a quantitative method with a type of quasi-experimental design. The population in this study were all eighth grade students of Bandar Bandar Junior High School and the samples were students of class VIII C, VIII D, VIII E. Class VIII C and VIII D as the experimental class and class VIII E as the control class. Data collection uses tests, observation, documentation and interviews. The data analysis technique used is the normality test, homogeneity test, hypothesis testing using one-way analysis ANOVA. Calculation of data was analyzed using inferential statistics with the help of SPSS 16.0 software application. Based on the results of the calculation of research data obtained that the value of sig α, α = 0.05 where the significance value of 0.049 H0 is rejected. Shows that the Thinking Aloud Pair Problem Solving (TAPPS) method with Audio-visual media is more effective than learning using the expository model on students' critical thinking abilities