AFORE: Jurnal Pendidikan Matematika
Afore: Jurnal Pendidikan Matematika adalah jurnal bidang pendidikan dan ilmu matematika termasuk pengajaran dan pembelajaran, instruksi, pengembangan kurikulum, lingkungan belajar, pendidikan guru, teknologi pendidikan, perkembangan pendidikan, dari berbagai jenis penelitian yang berada di bawah naungan Fakultas Keguruan dan Pendidikan, Program Pendidikan Matematika Universitas Nias Raya. Jurnal ini diterbitkan 2 kali setahun pada bulan April, dan September
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<![CDATA[ANALYSIS THE ABILITY UNDERSTANDING THE CONCEPT STUDENTS IN CLASS VIII OF SMP ORAHILI FONDRAKO QUADRATIC ]]>
<![CDATA[Ronal Raigen Giawa]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 1 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i1.805
<![CDATA[One of the problem which obtained by the researcher was the lack of ability in understanding mathematical concepts at the VIII grade students at orahili fondako on quadratic equation material. This research is aimed to describe the ability of mathematical concept understanding of students at the VIII grade at orahili fondako village on quadratic equation material and to know what are the students' difficulty at the VIII grade of orahili fondako village in finishing the concept comprehending ability especially on quadratic equation material. This research used qualitative descriptive research. The subject of the research was students at VIII grade in orahili fondako village which consists of 15 persons. The technique of collecting data was done by observation and test to the subject of the research. Data was analyzed by the steps as follow, data reduction, data display and verifing conclusion. As the result of the research shows that the mathematical concepts understanding at the VIII grade on quadratic equation material takes place under category by the percentage was 33%. The difficulties which got by the students in finising a test of mathematical concept understanding ability on quadratic equation material which students was lack to comprehend the test of the test given where, the students did not know what is the meaning and the purpose was asked of the case, then the students also still lack to elaborate that concept in a test, so the students were not able to answer the case of the test given and the students still lacked in understanding the steps in describing quadratic equation graphic. Furthermore, students still not able to apply the concept of quadratic equation in the case of problem solving. The researcher suggesting that the teacher and parent be collaborated on online learning proces which is applying nowdays so that the students' mathematical concept understanding be improved.]]>
<![CDATA[ANALYSIS OF STUDENT ERRORS IN SOLVING QUESTIONS ON A SYSTEM OF LINEAR EQUATIONS WITH TWO VARIABLES IN CLASS VIII SMP NEGERI 2 SOMAMBAWA SCHOOL YEAR 2022/2023 ]]>
<![CDATA[Hulu, Lukas Jaya]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1053
<![CDATA[This research is motivated by the existence of errors that students often make in solving mathematics problems. This research aims to describe students' errors in solving systems of two-variable linear equations. The subjects in this research were 24 students in class VIII of SMP Negeri 2 Somambawa for the 2022/2023 academic year. The data was analyzed using steps, namely data reduction, data presentation and drawing conclusions. The research data collection techniques used were tests and interviews. The results of the research show that students still make mistakes in solving problems on systems of linear equations in two variables. This results in students not being able to identify known data and the data asked for in the question. Students do not master mathematical calculation operations so they often make mathematical calculation errors. Apart from that, this error is also caused by students' lack of accuracy when carrying out mathematical calculations. So it was concluded that these errors included errors in organizing data for 13 students with a percentage of 54%, procedural errors and errors for 15 students with a percentage of 62%, and errors in drawing conclusions for 18 students with a percentage of 75%. Researchers suggest that mathematics teachers should provide students with more frequent exercises in solving systems of linear equations in two variables, especially in multiplication and subtraction operations, and division that is not divisible.]]>
<![CDATA[THE RELATIONSHIP BETWEEN STUDENTS' INTEREST IN LEARNING AND MATHEMATICS LEARNING OUTCOMES ]]>
<![CDATA[Harefa, Darmawan]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1054
<![CDATA[This study aims to determine a positive and significant relationship as well as an influence between students' interest in learning and their mathematics learning outcomes. The research method used in this study is quantitative research with a correlational approach. The population in this study consists of all eighth-grade students at SMP Negeri 1 Toma, totaling 65 students. The sampling technique used is total sampling, meaning the entire population is used as the sample. The instruments in this study include closed-ended questionnaires and students' mathematics learning outcomes in the form of even semester final exam scores (UKK). Data analysis techniques involve describing the data, correlational analysis, coefficient of determination, and hypothesis testing. The results of this study show that there is a positive and significant relationship between students' interest in learning and their mathematics learning outcomes, and there is also an influence of students' interest in learning on their mathematics learning outcomes. It can be concluded that 1) because students have a sense of enjoyment, interest, and a high desire to learn that they perceive as beneficial and satisfying, and 2) students feel comfortable, are aware of the benefits of learning, and understand the learning objectives, which makes them interested and leads to an improvement in learning outcomes.]]>
<![CDATA[ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS PADA MATERI PERPANGKATAN DAN BENTUK AKAR DITINJAU DARI MINAT BELAJAR SISWA KELAS IX DI SMPS KRISTEN BNKP TELUKDALAM TA. 2022/2023 ]]>
<![CDATA[Sarumaha, Wina Frederika]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1101
<![CDATA[The problem of this research is the ability of students' mathematical problem solving which is influenced by interest in learning. The aims of this study were 1) to see how well students could apply problem-solving skills, 2) to see students' learning interests and 3) to understand what obstacles students experienced in working on problem-solving ability tests. This research uses a qualitative approach and applies descriptive research. The subjects in this study were 22 students in class VIII of Christian Private Middle School BNKP Telukdalam 2022/2023 Academic Year. There are three research instruments used, namely tests of students' problem solving abilities, questionnaires of student interest in learning and interviews. Data analysis techniques according to Miles and Huberman. The results showed that the students' abilities in terms of exponentials and root forms were sufficient, where there were 17 students who were in the sufficient category and 5 in the insufficient category. The results of the analysis of students' interest in learning were 2 students with high learning interest, 14 students with moderate learning interest and 6 students with low learning interest. So it can be concluded that students' problem-solving abilities are still quite sufficient and students' learning interest is in the medium category. So the suggestions put forward by researchers are 1) it is hoped that students often practice problem solving skills and increase their interest in learning mathematics, 2) Teachers are more aware of the challenges facing students.]]>
<![CDATA[DEVELOPMENT OF A CARTESIAN COORDINATE MODULE TO IMPROVE THE ABILITY TO UNDERSTAND MATHEMATICAL CONCEPTS ]]>
<![CDATA[Laia, Marius Ferdi]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1129
<![CDATA[Mathematics is very important in everyday life, because human mathematics can think logically and argue. Many students think that mathematics is learning that is not fun and results in students being less able to understand mathematical concepts so that the level of student learning decreases, plus the source material presented is lacking. So that researchers conduct research on module development that can support students in learning mathematics and improve students' abilities in understanding concepts. This study aims to develop a module that refers to increasing the ability to understand mathematical concepts, with the material presented is Cartesian coordinate material. The module development procedure in this study is the 4-D development model. Data collection techniques used are student learning outcomes tests and questionnaires. The instruments used were validation sheets, student response questionnaires and pretest-posttest validation sheets. Based on the validity test, the results of the research show that the Cartesian coordinate module is very valid with a validity level of 86.4%. The results of the practicality test in the limited trial with a total of 16 students obtained a very practical Cartesian coordinate module with a percentage of 90.3%, and a field trial with a total of 22 students obtained a very practical Cartesian coordinate module with a practicality level percentage of 85.2%. . The module has met the effectiveness criteria based on the results of limited trials with the acquisition of a learning completeness score of 0.60 in the medium category, the results of field trials with the acquisition of a learning completeness score of 0.73 in the high category. This shows that the developed module is valid, practical and effective. The researcher hopes that this module can be used in learning, especially Cartesian coordinate material to improve students' conceptual understanding abilities.]]>
<![CDATA[DEVELOPMENT OF A CARTESIAN COORDINATE MODULE TO THE INFLUENCE OF IMPLEMENTING THE ROUND CLUB LEARNING MODEL ON MATHEMATICS STUDENT LEARNING OUTCOMES ]]>
<![CDATA[Gaurifa, Midarwati]]>;
<![CDATA[Darmawan Harefa]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1130
<![CDATA[The aim of the research is to determine the effect of the Round Club learning model on the cognitive learning outcomes of class VIII students at SMP Negeri 2 Telukdalam in the mathematics subject of number patterns for the 2022/2023 academic year. One solution to influence student learning outcomes, especially in number pattern material, is through the Round Club model where each group is taught to be responsible, give each other ideas about the material being discussed, and the interactions that are built are interactions that provide information and knowledge to each other. This research method is a quasi-experimental method which is quantitative in nature, namely in the experimental class the Round Club model is used, while in the control class the conventional method is used. The results of the research were that in the experimental class, by carrying out a pretest, the average learning outcome was 63.57 and the posttest obtained an average learning outcome of 83.21. Meanwhile, in the control class, the pretest obtained an average learning result of 57.93 and the posttest obtained an average learning result of 74.66 on the subject of the human digestive system for class VIII students at SMP Negeri 1 Telukdalam. The research conclusion based on hypothesis test calculations shows that tcount is 2.779, then the t price table is consulted with a significance level of 0.05 where ttable is 1.673. Because of the t table, Ha is accepted and Ho is rejected at the 5% significance level, which means "there is an influence of the Round Club learning model on the cognitive learning outcomes of class VIII students at SMP Negeri 2 Telukdalam in mathematics for the 2022/2023 academic year."]]>
<![CDATA[DEVELOPMENT OF A MATRIX MODULE TO IMPROVE YOUR UNDERSTANDING CAPABILITY OF MATHEMATICAL CONCEPTS ]]>
<![CDATA[Laia, Nasib Baik]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1131
<![CDATA[Mathematics subjects, which ideally are logical and useful subjects, have so far been less favored by students. The reality in schools is that there are still many who have difficulty understanding the concept of material, oneYof theYcausesYof thisYproblem is becauseY learningYis stillYteacher-centered and hasYnot been developed by the teacher's own teaching materials in learning. TheYpurpose ofYthis study was to develop aYmatrix module inYimproving theYabilityYtoYunderstand mathematical concepts.YThe type of researchYis research andYdevelopment (R&D), with the ADDIEYmodel (analyze, design, development, implementation, evaluation). Data collectionYtechniques are questionnaires, andYtests. Data analysisYtechniques are qualitative dataYanalysis and quantitative data analysis. Based on research and discussion that the results of the validation test from the validator show that it is very valid. The resultsYof the validationYof the material section obtained an average of 79.54% with a valid category. The results of the validation of media experts obtained an average of 92.59% with a very valid category and the results of the validation of linguists obtained an average of 90% with a very valid category. From the three validators, theYresults of the module validity obtained an average of 87.37% with a very valid category. practicality results were obtained based on limited class trials and field trials. The results of practicality in the limitedYclass trialYobtained results of 2.86 with a percentage of 71.5% in the very practical category. The results of practicality in field trials obtained results of 3.61 with aYpercentage of 90.25 and were categorized as very practical. The results of the effectiveness of the limited class trialYmodule with an average score of 0.80 in the high category, and the results of the effectiveness of the field class trial with theyacquisition of anyaverage scoreyof 0.66 inythe mediumYcategory. The developedYmodule is expected to beYused in improvingYthe ability to understand mathematical concepts in matrixYmaterial.]]>
<![CDATA[DEVELOPMENT OF A MODULE ON EQUATIONS AND SQUARE FUNCTIONS TO IMPROVE THE MATHEMATICAL PROBLEM SOLVING CAPABILITY OF CLASS IX PRIVATE CHRISTIAN SMP BNKP TELUKDALAM ]]>
<![CDATA[Sarumaha, Euphronius Randri Putra]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1132
<![CDATA[This study aims to develop a module on quadratic equations and functions to improve students' skills in solving mathematical problems. The type of research used in this research is research and development (R&D), namely the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The subjects of this study were students of class IX (nine) Christian Private Middle School BNKP Telukdalam Academic Year 2021/2022. In developing this module there are several stages, namely: (1) Analysis (Analysis), (2) Design (Design), (3) Development (Development), (4) Implementation (Implementation) and (5) Evaluation (Evaluation). After the module is in such a way, the module is ready to be validated by experts design, material experts and linguists. Based on the results of research on the development of mathematics learning modules from the three validation expert lecturers on mathematics learning modules classified as "valid". Based on the results of the teacher's response trial questionnaire, information was obtained that the student response questionnaire was classified as "Practical". So it can be concluded that the availability of mathematics learning modules that are effectively used can help the learning process and learning outcomes. As for the suggestions that the researchers conveyed that mathematics teachers should use mathematics learning modules on equations and quadratic functions when teaching.]]>
<![CDATA[DEVELOPMENT OF LEARNING MODULES WITH DATA PRESENTATION MATERIALS TO INCREASE STUDENTS' INTEREST IN LEARNING ]]>
<![CDATA[Telaumbanua, Lukas]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1134
<![CDATA[The aim of the research is to develop a data presentation module to increase students' interest in learning. This type of research is research and development (R&D), with the ADDIE model. Qualitative and quantitative data analysis techniques. Validation results of the material section 4.26 valid category. The validation of media experts is 4.50 valid categories and the validation of linguists is 4.87 categories which are very valid. Practical results in confined classes and fields. The results of practicality in the limited trial using a student response questionnaire and a questionnaire of initial and final student learning interest, the results of the practicality percentage obtained a maximum value of 2.72 in the very practical category, the practicality test using a final learning interest questionnaire with a value of 4.9 in the very practical category. The practicality result in the field trial was 4.72 in the very practical category. The results of the effectiveness of the test module obtained an average score of 75 in the complete category. Hopefully the results obtained above can make further researchers easier to understand so as to increase student learning interest]]>
<![CDATA[APPLICATION OF THE PROBLEM BASED INSTRUCTION (PBI) LEARNING MODEL ON TUBE MATERIALS TO IMPROVE STUDENT LEARNING OUTCOMES ]]>
<![CDATA[Sihombing, Robinson]]>
<![CDATA[ Afore : Jurnal Pendidikan Matematika Vol 2 No 2 (2023): Afore : Jurnal Pendidikan Matematika ]]>
Publisher : <![CDATA[Universitas Nias Raya ]]>
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DOI: 10.57094/afore.v2i2.1135
<![CDATA[This research aims 1) to describe tube learning by applying the Problem Based Instruction (PBI) learning model, 2) to describe improving student learning outcomes through implementing the Problem Based Instruction (PBI) learning model. This research is Classroom Action Research (PTK). The instruments used are (a) Teacher (Researcher) and Student Observation Sheets, (b) Interview Guide Sheets, (c) Documentation, (d) Field Notes, (e) Learning Results Tests. The research subjects were class IX students at SMP Swatsta Imanuel Bekasi with a total of 20 students. The research results obtained show that the Problem Based Instruction (PBI) learning model can improve student learning outcomes, especially in tube material. This is because by implementing the Problem Based Instruction (PBI) learning model students are more active in learning, understand the concept of the material better, are able to solve mathematical problems, students' analytical power towards mathematical problems increases, they are more critical in solving problems and the group learning carried out makes Students are more open in expressing their ideas. Based on the results of this research, it can be concluded that using the Problem Based Instruction (PBI) learning model can improve student learning outcomes, especially in tube material. The Problem Based Instruction (PBI) learning model should be used as an alternative in improving student learning outcomes in mathematics learning.]]>
