International Journal of Trends in Mathematics Education Research
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Digitization of laboratory equipment using PhET simulation media in applied chemistry practicum
Get PDFUnderstanding 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
Innovation of the problem based learning model with contextual teaching learning in mathematics learning in the Industrial Revolution 4.0 era: A comparative case studies
Get PDFThis study aims to compare learning outcomes, activeness, and students’ responses in learning mathematics in the era of the industrial revolution 4.0. Type of study is a quasi-experimental design with a pretest post-test only comparison design. The study population was the high school students in class XI with the samples consisting of three classes from different schools. The results of the descriptive and inferential analysis show that there were differences from the application of the three learning models which were then being tested by Tukey and they were depicted descriptively and inferentially that the combination model of Problem based learning setting Contextual teaching learning was more effective than the model of Problem based learning and Contextual teaching learning in terms of learning outcomes, activeness and student responses in the industrial revolution 4.0
Model SMEs digital disruption management with business model canvas and integer programming
Get PDFThe 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
The development of inquiry-based mathematics teaching materials for space figures for elementary schools
Get PDFThis study aims to develop inquiry-based worksheets on the material area and volume of cylinder shapes that are valid, feasible, effective, and improve learning outcomes. This research is a research and development (RD) using the ADDIE model, which consists of 5 stages: the Analysis, Design, Develop, Implement, and Evaluate stages. Subjects in the study were grade VI students of SD Negeri 2 Bengkulu City. The research instrument used a validation sheet, a teacher and student response questionnaire, and a question test sheet. The research data were then analyzed using descriptive analysis. The results showed that the inquiry-based LKPD products that had been developed and assessed by expert validators were in the very valid category with an average percentage of 94.79%; the teacher's response to the guided inquiry-based LKPD obtained a percentage of 80.0% with appropriate categories or criteria, and student responses to guided inquiry-based LKPD received a percentage of 74.62% in the appropriate category and an effective level of 80.95% in the effective category. Thus, it can be concluded that the inquiry-based students' worksheets on the cylinder shapes developed are very valid, feasible, effective, and can improve student learning outcomes to be used as supporting teaching materials in the learning process. Finally, these inquiry-based student worksheets are expected to be used as a basic framework for developing students' worksheets for other materials
Electrical distribution system efficiency and effectiveness with simple mathematics at the Indonesian aviation Polytechnic of Curug
Get PDFIndonesian Aviation Polytechnic of Curug (PPI Curug) uses power from PLN of 3 Mega Watts. Since the beginning implementation of the electrical system at the PPI Curug Campus, adjustments have never been made. The additions of a new distribution system did not go through careful planning, this can be shown by the data that until now there are still buildings at PPI Curug which are supplied with a voltage of 110 V per phase. Upgrading the electrical system in several buildings that are supplied with a voltage of 110 V per phase has been carried out slowly through the adjustment mechanism of the electrical installation in these buildings, and has not yet touched on the distribution system. The large number of power transformers turned out to be not proportional to the power supply borne by each transformer, and overall none of the transformers was burdened more than 40% of the nominal load. On the other hand, the number of electricity subscription bills paid by PPI Curug has increased from year to year. This study aims to determine whether the electricity distribution system used at PPI Curug is currently effective and efficient and to determine an effective and efficient electricity distribution system based on the characteristics of the area and type of load at PPI Curug. The research method used is an evaluative qualitative method which will describe the condition of the distribution system and installation at PPI Curug, then evaluate it based on existing standards. The differences that exist between the real conditions in the field and the existing standards will be used as conclusions and suggestions for improvements. The results showed that the percentage value of the efficiency of all transformers showed a value of 95% so that the efficiency of the transformer at PPI Curug was categorized as good, but the condition that there was still a large amount of unused power needed to anticipate the use of electrical power beyond the requirement
Study of Mathematical Activities in “Rumah Tuo”
Get PDFMathematics learning still tends to be structuralistic and mechanistic. It resulted in students' difficulties and errors in understanding mathematical concepts and principles. Whereas mathematics is a human activity that is always in contact with their culture. One of the cultures that becomes the starting point for learning mathematics is a traditional house, such as the “Rumah Tuo”. The purpose of this study was to describe the mathematical activity at the Rumah Tuo. This type of research is a qualitative-research with an ethnographic approach. The research instrument used in the form of observation, interviews, and documentation. The results of this study are that there are mathematical activities carried out at Rumah Tuo, namely counting activities using Gantang Biheh, measuring activities in making poles in the form of a 16-sided prism, and designing traditional houses in such a way that they can be shaped like ancient means of transportation, namely ships. The conclusion of this research is that there are three mathematical activities through the “Rumah Tuo” culture, namely measuring, designing and calculating
Development of mathematics learning media for lessons related to pyramids using reflective pedagogy paradigm
Get PDFAt schools, many teachers generally applied a conventional way of teaching mathematics. Students were only required to achieve cognitive learning success. This study aimed to develop mathematics learning media for lessons related to pyramids using the Reflective Pedagogical Paradigm (RPP) and Van Hiele theory, including the development steps and student and teacher responses to the learning process. The researchers used the research and development procedures by Borg and Gall that include (1) Preliminary studies; (2) Planning Research; (3) Design Development; (4) Limited Trial; (5) Revision of Limited Field Test Results. The learning tools developed were syllabus, lesson plans, modules, worksheets, formative tests, and attitude assessments. The data collection techniques used were observation, distributing questionnaires, interviews, and tests. Based on the validation results, the learning media got 4.19, thus categorized as "good," and students' response to the learning process reached 128.23, thus categorized as "good" as well. Students and teachers carried out learning happily and actively
Analysis of errors in solving mathematical literacy analysis problems using newman
Get PDFThe purpose of this study was to find out student errors in solving problems about mathematical literacy. This study uses a qualitative research approach with sampling method is purposive sampling. The study subjects were three students who were taken based on KAM (Student Initial Ability), namely high, medium, and low ability categories. Each subject is one person per category from the Department of Accounting, Bandung State Polytechnic. This study analyzes student errors in solving mathematical literacy problems in the statistics course for the sub-discussion of hypothesis testing. The error analysis method used is Newman analysis. This study uses two instruments, namely a test instrument with four questions in the form of descriptions and interviews. The data will then be classified into five error categories according to Newman's analysis. The conclusions in this study indicate that there are errors in answering questions, especially for mathematical literacy questions; students are expected to be able to analyze questions in the form of story questions; Understanding the problem instructions and information contained in the problem is the first step in working on mathematical literacy problems so that the level of errors and errors in working on the questions is more resolved. Of the five errors that became the standard for Newman Error Analysis assessment, three errors were made by respondents, namely errors in understanding story questions correctly, errors in transforming story questions into mathematical sentences, and errors in writing the final answer
Math poster with augment reality to increase learning outcome of students’ high school
Get PDFAugmented Reality-based mathematics poster is one of the media for learning mathematics with the use of technology. The rapid development of technology requires education to innovate learn-ing devices with technology, this learning media is made as a form of developing technolo-gy-based learning tools that are in accordance with educational needs. This study aims to deter-mine the feasibility and effectiveness of mathematical posters on building materials using Aug-mented Reality (AR). The subjects of this study were students of Class X SMA. This type of re-search ADDIE model (Analyze, Design, Development, Implementation, Evaluation). The results of this study show that the Mathematics Poster for Building Spaces with Augmented Reality is "Very Appropriate" with a value given by Design and Technology experts in the "Good" category with a feasibility presentation of 89% in the "Eligible" category. The results of the validation of mathema-ticians in the "Very Good" category and a feasibility presentation rate of 93% in the "Very Eligible" category. The results of the teacher assessment are in the "Very Good" category and the feasibility presentation rate is 94% with the "Very Eligible" category. And based on the results of the pretest and posttest, it was found that there was an increase in student learning outcomes in the material of building space
The effect of learning Think Talk Write model with Powerpoint assistance on students' mathematics learning outcomes
Get PDFThis study aims to know the effect of the Powerpoint-assisted Think Talk Write (TTW) learning model on student learning outcomes. The type of study is experimental and the design is one group pretest-posttest design. This type begins with measuring the initial ability of students than giving treatment and then giving a remeasurement or posttest. This analysis was conducted to determine the effect of the Powerpoint-assisted TTW learning model on students learning outcomes. The results of the study showed that the significance value between the pretest and posttest was 0.002 and the sign value was 0.05. Based on the decision that the sign value is 0.002 and less than 0.05 which means that there is a significant difference between the pretest and posttest there is a significant effect on the treatment given. This means that there is a significant influence on the Powerpoint-assisted TTW learning model on student learning outcomes