Jurnal Pendidikan Matematika Universitas Lampung
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Published By Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas Lampung

2338-1183, 2715-856x

2021 ◽  
Vol 9 (4) ◽  
pp. 413-426
Author(s):  
Windi Ria Astuti ◽  
Noerhasmalina Noerhasmalina ◽  
Binti Anisaul Khasanah

It is not easy for students to understand the questions in the form of stories so that errors often occur in the process of solving problems. This study aims to describe the factors that cause vocational students' errors in solving story problems based on Anne Newman. This research is a qualitative research. The instrument used in this research is a test which consists of 3 questions and an interview guide. The subjects in this study were students of class XII TKJ SMK Patria Gadingrejo. Analysis of the data using the analysis of the location of student errors based on Anne Newman's procedure, namely a) reading the problem, understanding the problem, b) transforming the problem, c) process skills, and d) writing the final answer. The factors that cause student errors at each stage are: 1) misunderstood the problem, the cause of which is the lack of understanding and thoroughness of students; 2) problem transformation errors, the reason is that students do not master the concept and do not have mastery of the material; 3) process skill errors, the cause of which students are wrong in doing the initial steps of work; 4) errors in writing the final answer, the reason is that students are not accustomed to writing conclusions.


2021 ◽  
Vol 9 (4) ◽  
pp. 386-396
Author(s):  
Nur Nabilah Syahrur Rohmah ◽  
Intan Dwi Cahyani ◽  
Oryza Lisativani Fatimah ◽  
Surya Sari Faradiba

This research is motivated by the low understanding of students' mathematical concepts, especially on social arithmetic material. The purpose of this study was to describe the stages of the metaphorical thinking approach method and the magnitude of the increase in students' conceptual understanding of social arithmetic material. The data collection method used in this classroom action research (CAR) includes written tests and observations in each cycle. The research instruments used were lesson plans, worksheets, question sheets, and observation sheets for the implementation of learning in each cycle. The research subjects were students of class VII in one of the madrasah tsanawiyah in Lamongan as many as 23 students. Based on the results of data analysis, the classical student activity assessment increased 23.85% from 66.25% to 90.1%. Student test results also increased by 34.8%, namely from cycle I it reached 47.8% and cycle II reached 82.6%, with the results achieved can be declared complete, and it can be concluded that in online mathematics learning there is an increase in understanding concept in class VII madrasah tsanawiyah in Lamongan by using the application of Metaphorical Thinking.


2021 ◽  
Vol 9 (4) ◽  
pp. 501-513
Author(s):  
Kunalfi Reza Luthfiana ◽  
Abdurrahman Abdurrahman ◽  
Rezi Ariawan, ◽  
Dedek Andrian

The purpose of this research is to produce a mathematics learning tool in the form of the lesson plan and student's worksheet using the guided discovery method on the circle material of class VIII junior high school which has been tested valid. This development refers to the Research and Development (R&D) model which includes 10 stages, namely potential and problems, data collection, product design, design validation, design revisions, product trials, design revisions, usage trials, product revisions, and mass production. Modified according to the needs of this research into 6 stages, namely potential and problems, data collection, product design, design validation, design revision, and final product. The data analysis technique used is the descriptive analysis technique. The validation sheet was used as a data collection instrument in this research. The validation sheet is filled out by 3 validators consisting of 2 lecturers of the mathematics education study program FKIP UIR and 1 mathematics teacher. Based on the results of the lesson plan validation, a percentage of 85.6% was obtained with very valid criteria, while the students’ worksheet validation results were 82.6% with fairly valid criteria. This research concludes that mathematics learning tools have been obtained using the guided discovery method in class VII junior high school on the circle material which has been tested valid.


2021 ◽  
Vol 9 (4) ◽  
pp. 360-372
Author(s):  
Yovi Imeysa ◽  
Farida Farida ◽  
Suherman Suherman ◽  
Tia Agnesa

This study aimed to determine the effect of the STEM (Science, Technology, Engineering, and Mathematics) learning approach on the ability to understand mathematical concepts in terms of students' Al-Qur'an literacy. This research is a Quasy Experimental Design research with a 2×3 factorial research design. The data collection techniques in this study were in the form of a concept understanding test and an Al-Qur'an literacy questionnaire. The data analysis technique used is the normality test and homogeneity test, and the Two-way ANOVA test. Based on the results of the study, it was concluded that there was an effect of the STEM learning approach (Science, Technology, Engineering, and Mathematics) on the ability to understand students' mathematical concepts in the material of Building Flat Side Space. There is no influence of Al-Qur'an literacy on the ability to understand students' mathematical concepts in the material of Constructing Flat Sided Space. There is no interaction between the treatment of the STEM learning approach (Science, Technology, Engineering, and Mathematics) with the Al-Qur'an literacy category on the ability to understand mathematical concepts in the matter of Constructing Flat Sided Space.


2021 ◽  
Vol 9 (4) ◽  
pp. 373-385
Author(s):  
Tuti Alawiyah ◽  
Kartini Kartini ◽  
Syarifah Nur Siregar

This study aimed to develop valid and practical circle materials based on a realistic mathematics education approach to facilitate the mathematical understanding ability of eighth-grade students of SMP/MTs. This research and development used the ADDIE development model covering the Analysis, Design, Development, Implementation, and Evaluation stages. The subjects of the small group trial were 6 eighth-grade students of SMPN 21 Pekanbaru. The data were collected using a validity sheet for validity and a questionnaire for practicality. Based on the results of the analysis of the obtained data, the average validity reached 85.5 with a very valid category and average practicality of 93.45 with a very practical category. Therefore, it can be concluded that the developed materials are valid and practical.


2021 ◽  
Vol 9 (4) ◽  
pp. 456-466
Author(s):  
Eyus Sudihartinih ◽  
Sekar Wilujeng ◽  
Dewi Rachmatin

The purpose of this study was to describe the results of research on the design of Scratch-based learning media on the topic of the Greatest Commonwealth Factor (FPB). This study uses the Multimedia Development Life Cycle (MDLC) development model through six stages, namely concept, design, collecting, assembly, testing, and distribution. Furthermore, to find out the student's response to the media that has been designed so that a research instrument is used in the form of a questionnaire via Google Form and given in 2021. Research participants are students at one of the junior high schools in the city of Bekasi, West Java. Based on the results of the study, it is known that the learning media for the topic of FPB mathematics can be well designed through the MDLC development model through six stages. In addition, it is known that the student's response to the media that has been designed is positive. Thus the need for further research including game design on different topics.


2021 ◽  
Vol 9 (4) ◽  
pp. 442-455
Author(s):  
Tris Diana Setia Karti ◽  
Mardiah Syofiana

Students’ ability for thinking creatively is very important due to highly support the increase of global competition in the current digital era. However, the condition of students' creative thinking abilities is still relatively low, which strongly leads the learning program that can explore the competence of students' creative thinking abilities, one of which is by using open-ended questions under the Bengkulu context. This study aims to produce open-ended questions on mathematical creative thinking skills that are valid and practical. This research was development research by using the 1993 Tessmer development model (modified by Zulkardi, 2006). In this study, the stages used preliminary, self-evaluation, expert review, and one-to-one. The test subjects of this study were class VIII Junior High School students. This research was conducted from June to July 2021. The data analysis technique used qualitative and quantitative analysis. Based on the results of the research showed that the open-ended questions developed were valid based on validators' comments and practical based on the results of the answers and interviews by students.


2021 ◽  
Vol 9 (4) ◽  
pp. 343-359
Author(s):  
Muhammad Alfian Darmawan ◽  
Dian Ariesta Yuwaningsih

The type of this research is Research and Development. The research purpose was to develop and determine the feasibility of e-LKPD mathematics based on Problem Solving number pattern material for class VIII Junior High School. The development model used in this research is ADDIE. The subject in this research is all student of class VIII B and VIII C SMP Muhammadiyah Piyungan. The data obtained were analyzed using descriptive qualitative analysis and descriptive quantitative analysis. The results showed that e-LKPD mathematics based on Problem Solving number pattern material was feasible to use after the validation test was carried out with the material expert giving a score of 115.5 and material expert giving a score of 85.5 in the very good category. In addition, the trial of product obtained a score of 82.15 with a good category. This shows that e-LKPD mathematics based on Problem Solving number pattern material is fesiable to use in the learning.


2021 ◽  
Vol 9 (4) ◽  
pp. 491-500
Author(s):  
Muhammad Dede Firman ◽  
Wardani Rahayu ◽  
Lukman El Hakim

This study aims to determine the effect of mathematical logical intelligence and self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning. This research is survey research by giving a logical-mathematical intelligence test, a self-regulated learning questionnaire, and a mathematical concept understanding ability test to 142 X grade students in one of the Jakarta State Senior High Schools. Statistical analysis used in this study is multiple linear regression. Based on the results of hypothesis testing, it can be seen that there is an effect of mathematical logical intelligence and self-regulated learning together on the ability to understand students' mathematical concepts in online-based mathematics learning by 49.53%, there is an influence of mathematical logical intelligence significantly on the ability to understand students' mathematical concepts in online-based mathematics learning, and there is no significant effect of self-regulated learning on the ability to understand students' mathematical concepts in online-based mathematics learning.


2021 ◽  
Vol 9 (4) ◽  
pp. 482-490
Author(s):  
Ari Septian ◽  
Sarah Inayah ◽  
Ihsanu Nasihin

The purpose of this study was to develop teaching materials assisted by Google Classroom in the form of mathematical material about building cubes and blocks, examples of math problems, and practice math problems. Developed as empirical evidence of the effectiveness of Google Classroom-assisted teaching materials on building materials. The method used in this study is research and development (Research and Development) with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). These teaching materials were developed through a questionnaire and assessed from several expert validations including media experts and material experts. Based on the results of the media expert validation, the average score percentage was 78.3% and was included in the Eligible category. Meanwhile, based on the results of material expert validation, the average score percentage is 82.6% and is included in the Very Eligible category. Thus, overall Google Classroom-assisted teaching materials on this spatial building material have a percentage of 80.4% and fall into the Very Eligible category. so that it is effective as a Google Classroom-assisted teaching material on building materials and can be used anytime.


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