Junior High School Mathematics Research Articles

A Brief Discussion on Junior High School Mathematics Teaching Based on Graded and shift system

A Brief Discussion on Junior High School Mathematics Teaching Based on Graded and shift system

Research on the Project-based Learning Guidance Strategies of Rural Junior High School Mathematics under the Guidance of Core Literacy

Research on the Project-based Learning Guidance Strategies of Rural Junior High School Mathematics under the Guidance of Core Literacy

Exploration on the Countermeasures of Applying Group Cooperative Learning in Junior High School Mathematics Teaching

Exploration on the Countermeasures of Applying Group Cooperative Learning in Junior High School Mathematics Teaching

Strategies and Guidelines for Cultivating Students' Self-study Ability in Junior High School Mathematics Teaching

Strategies and Guidelines for Cultivating Students' Self-study Ability in Junior High School Mathematics Teaching

Discussion on the Cultivation of Students' Thinking Ability in Junior High School Mathematics Teaching

Discussion on the Cultivation of Students' Thinking Ability in Junior High School Mathematics Teaching

Pelatihan Pengembangan Instrumen Penilaian Numerasi untuk Peningkatan Kompetensi Guru Matematika SMP

Asesmen Kompetensi Minimum (AKM) or Minimum Competency Assessment has different objectives and formats compared to Ujian Nasional (National Exam), therefore teachers need to upgrade their knowledge of assessment instruments that measure students’ numeracy skills. This training aims to develop teachers' professionalism and competence in developing numeracy assessment instruments. The training was carried out online through a Zoom Meeting with participants of 29 junior high school mathematics teachers in Bogor Regency, West Java. The training was delivered in 2 sessions by 2 mathematics education lecturers from Universitas Negeri Jakarta. The first session with topics of AKM discussed the material domain, cognitive level, and the form of the questions on the AKM questions. The second session was with topics of numeracy skills discussed the benefits and the definition of numeracy skills. At the end of the training, participants were assigned to make a numeracy assessment instrument within 1 week. Participants and presenters join WhatsApp groups as a forum for discussion in the process of doing assignments. This training activity produces an output in the form of a numeracy assessment instrument that is developed based on the AKM question format. Participants are motivated and have ideas to develop numeracy assessment instruments.

Penerapan Model Pembelajaran ELPSA dengan Media Pita Tongkat untuk Meningkatkan Pemahaman Konsep PLSV

This research is motivated by the real condition that students do not understand the concept of linear equations and one variable linear inequality and the teacher tries to improve understanding of these concepts. An alternative to solve this problem is by applying experiences, language, pictures, symbols, application (ELPSA) learning model using sticky tape media. This study aims to improve students' understanding of concepts in the subject matter of linear equations and inequalities with one variable in junior high school mathematics. Research subjects, students of SMPN Bulo Odd Semester 2018/2019 Academic Year class VII A consisted of 27 people. Methods of data collection, observation, tests, questionnaires and field notes. The implementation is carried out in 3 cycles, each cycle consisting of planning, implementing, observing, and reflecting. The data analysis technique was carried out in a descriptive qualitative manner. Descriptive analysis, to describe the implementation of the learning model and calculate the percentage of students who completed. Qualitative analysis using flow methods, namely data reduction, and drawing conclusions or verification. Conclusion (1) Learning with the ELPSA model with stick tape media can improve the concept of linear equations and inequalities of one variable in students of SMPN Bulo class VII A. (2) The ELPSA learning model with stick tape media can improve learning outcomes of linear equations and inequalities of one student variable SMPN Bulo class VII A.

Teachers’ Assessment Factors of Students’ Non-Cognitive Skills: Analysis of a Survey in the Area of “Data Handling” in Junior High School Mathematics

Teachers’ Assessment Factors of Students’ Non-Cognitive Skills: Analysis of a Survey in the Area of “Data Handling” in Junior High School Mathematics

Rasch Model: Quality of Test Instruments to Measure Students’ Ability in Algebra

This research is research using a quantitative approach that aims to analyze the quality of the test instrument by using the Rasch model to measure the ability of students in junior high school mathematics courses, especially in Algebra material. The sample used in the study was 37 students. The instrument used is a multiple-choice test with four answer choices consisting of 30 questions. The results obtained from this study there are 27 valid items and 3 invalid items. The reliability of the test score (reliability) of the estimation results using the Rasch model shows that the reliability is included in the good category with a person reliability value of 0.74, item reliability of 0.84 and Cronbach's Alpha of 0.85. For the level of difficulty or difficulty of the items, 7 items are in the very easy category, 7 items are in the easy category, 11 items are in the difficult category and 5 items are in the very difficult category. Of the 30 questions, there is 1 item that must be discarded because the question is too easy. The level of ability of students with serial numbers 18 and 4 is classified as person misfit in the Rasch model. This is because students with serial numbers 18 and 4 have an unusual pattern of answers, namely not being able to answer correctly on items that are classified as easy, but able to answer correctly on items that are classified as difficult.

A Study on Students' Ability to "Explain and Prove" in Elementary and Junior High School Mathematics

A Study on Students' Ability to "Explain and Prove" in Elementary and Junior High School Mathematics

Research on the Teaching Design of Junior High School Mathematics Pointing to Deep Learning —Take "Definition of a Function" as an Example

Teaching is a way for teachers to spread knowledge to students, and deep learning is a mean to ensure the quality of teaching. This paper outlines the basic methods of mathematics instructional design under deep learning, and carries out the instructional design of deep learning based on the "definition of primary function", in order to provide theoretical and practical reference for the mathematics instructional design of front-line teachers.

Using Newman Error Analysis to Detect Students’ Error in Solving Junior High School Mathematics Problem

The existence of student errors is due to the inability of the students to receive and process the information contained in the given questions. Therefore, it is necessary to conduct an analysis to find out student errors so that the results obtained in the analysis can be used by teachers to provide appropriate assistance to students, either through methods or media in learning mathematics. This study is a qualitative descriptive study. The purpose of this study was to find out how many errors were made by the eighth-grade class of Nurul Falah MTs in solving math problems according to Newman’s theory in school year 2021/2022. So that solutions to reduce errors can be found and also to emphasize which parts require a deeper understanding in solving math problems. The results of the analysis showed that the percentage of student errors in the Reading Error (RE) phase was 13.33%, Reading Comprehension (RC) phase was 42.22%, Transformation Error (TE) phase was 28.89%, Process Skill (PS) phase was 71.11%, and the Encoding Error (EE) phase was 86.67%. From the results of the analysis, it can be seen that the most errors made by students are Encoding Error, which are 86.67%. Keywords: student error analysis, Islamic junior high school, Newman’s Theory. Abstrak: Adanya kesalahan para siswa dikarenakan belum mampunya menerima dan mengolah informasi yang ada pada soal yang diberikan. Oleh karena itu perlu dilakukan analisis dalam mengetahui kesalahan-kesalahan siswa sehingga dengan hasil yang diperoleh dalam analisis dapat digunakan oleh guru untuk memberikan bantuan yang tepat, baik melalui metode ataupun media dalam pembelajaran, kepada para siswa. Penelitian ini adalah penelitian deskriptif kualitatif. Adapun tujuan dari penelitian ini adalah mengetahui seberapa besar tingkat kesalahan yang dilakukan oleh para siswa kelas VIII MTs Nurul Falah Kefamenanu dalam menyelesaikan soal matematika menurut teori Newman pada tahun ajaran 2021/2022. Sehingga solusi untuk mengurangi kesalahan dapat ditemukan dan juga untuk menekankan dibagian mana saja yang membutuhkan pemahaman yang lebih mendalam dalam menyelesaikan soal matematika. Hasil analisis yang dilakukan menunjukkan bahwa ) persentase kesalahan siswa pada tahapan Reading Error (RE) sebesar 13.33%, tahapan Reading Comprehension (RC) sebesar 42.22%, tahapan Transform Error (TE) sebesar 28.89%, tahapan Process Skill (PS) sebesar 71.11%, dan tahapan Encoding Error (EE) sebesar 86.67%. Dari hasil analisis tersebut terlihat bahwa kesalahan yang paling banyak dilakukan oleh para siswa adalah kesalahan Encoding Error atau kesalahan dalam pengkodean, yaitu sebesar 86.67%. Kata kunci: analisis kesalahan siswa, MTs, Teori Newman. DOI: http://dx.doi.org/10.23960/jpmipa/v23i2.pp459-473

The Use of ICT and Its Challenges during the COVID-19 Outbreak: A Phenomenological Study of Junior High School Mathematics Teachers in Indonesia

The Use of ICT and Its Challenges during the COVID-19 Outbreak: A Phenomenological Study of Junior High School Mathematics Teachers in Indonesia

Ethnomatematics-Based Learning Media for Junior High School Mathematics using Rejang Lebong as Bengkulu Traditional House

The purpose of this research is to develop the mathematics learning media with ethnomathematics base for SMP (Junior High School) students at traditional house of Rejang Lebong and the media must valid, practice and effective. The research which used is research which developed by using ADDIE model with 5 steps, they are: (1) Analysis, (2) Design, (3) Development, (4) Implementation, and (5) evaluation. The subjects in this research are 24 students of class VIII of SMP Negeri 36 Rejang Lebong. The data instrument which collected in this research consist of validity sheet, practical sheet and a sheet of concept understanding capability test. Data are analyzed by using descriptive statistics to describe the average from students’ concept understanding. Validity is analyzed by using Aiken Index. The result shows that mathematics learning media with ethnomathematics base at Rumah Adat Rejang Lebong is Valid with average Aiken Index score on material aspect is 0,81 and media aspect is 0,92 with valid criteria. Learning media has practical criteria from the teacher and students’’ point of view. Interactive learning media product with ethnomathematics has followed the effective criteria according to students’ capability in understanding the concept. It is showed from the percentage of students’ completeness achievement is 82,68% with average score is 83,33. Keywords: development research, ethnomathematics, rumah adat, concept understanding. Abstrak: Penelitian ini bertujuan untuk mengembangkan media pembelajaran matematika berbasis etnomatematika pada rumah adat Rejang Lebong untuk siswa SMP yang valid, praktis, dan efektif. Penelitian yang digunakan adalah penelitian pengembangan dengan model ADDIE (Branch, 2009) dengan lima tahapan, yaitu: (1) analysis, (2) design, (3) development, (4) implementation, dan (5) evaluation. Subjek penelitian ini adalah peserta didik kelas VIII SMP Negeri 36 Rejang Lebong sebanyak 24 orang peserta didik. Instrumen pengumpulan data terdiri dari lembar validitas, lembar kepraktisan, dan lembar tes kemampuan pemahaman konsep. Data dianalisis secara statistik deskriptif untuk mendeskripsikan rata-rata pemamahan konsep peserta didik. Validitas dianalisis menggunakan indeks Aiken. Hasil penelitian menunjukkan bahwa media pembelajaran matematika berbasis etnomatematika pada rumah adat Rejang Lebong valid dengan rata-rata skor indek Aiken pada aspek materi sebesar 0,81 dan aspek media 0,92 dengan kriteria valid. Media pembelajaran memiliki kriteria praktis ditinjau dari penilaian guru dan peserta didik. Produk media pembelajaran interaktif berbasis etnomatika memenuhi kriteria efektif ditinjau dari kemampuan pemahaman konsep siswa. Hal ini ditunjukkan persentase ketercapai ketuntasan belajar peserta didik 82,68% dengan nilai rata-rata 83,33. Kata kunci: penelitian pengembangan, etnomatematika, rumah adat, pemahaman konsep. DOI: http://dx.doi.org/10.23960/jpmipa/v23i4.pp1382-1394

Items Analysis of Midterm Exam Test on Difficulty Level and Discrimination Index Based on Bloom Taxonomy: A Case of Junior High School Mathematics Problems

The purpose of this study was to find out how the level of difficulty on the Middle Semester Assessment of Mathematics class VII SMP Negeri 5 Cibitung for the 2021/2022 academic year was based on Bloom's taxonomy. This research was conducted at SMP Negeri 5 Cibitung. The type of research is descriptive research with a quantitative approach. The data collection technique used is the documentation method, while the data analysis technique uses Microsoft Excel with formulas to test validity, reliability, difficulty level, discriminatory power, and calculate the percentage level of difficulty of questions based on Bloom's taxonomy. Based on the results of the analysis, it can be concluded that there are 18 items (90%) which are declared valid, and the items are declared reliable with a reliability coefficient of 0.83. The results of the analysis of questions based on Bloom's taxonomy, obtained questions belonging to the ability to understand (C2) as many as 5 items (25%), belonging to the ability to apply (C3) as many as 10 items (50%), and belonging to the ability to analyze (C4) as many as 5 items (25%). There are no questions belonging to the ability to remember (C1), evaluate (C5), and create (C6), then the questions are classified based on the students' thinking criteria, and the questions that are classified as Higher Order Thinking Skills (HOTS) are 5 items (25%) and questions that are classified as Medium Order Thinking Skills (MOTS) as many as 15 items (75%). Keywords: difficulty level, mid-semester assessment, Bloom's taxonomy. Abstrak: Tujuan penelitian ini untuk mengetahui bagaimana tingkat kesulitan pada soal Penilaian Tengah Semester pelajaran matematika kelas VII SMP Negeri 5 Cibitung tahun ajaran 2021/2022 berdasarkan taksonomi Bloom. Penelitian ini dilakukan di SMP Negeri 5 Cibitung. Jenis penelitian yaitu penelitian deskriptif dengan pendekatan kuantitatif. Teknik pengumpulan data yang digunakan adalah metode dokumentasi, sedangkan teknik analisis data menggunakan Microsoft Excel dengan rumus-rumus untuk uji validitas, reliabilitas, kemudian menganalisis soal PTS buatan guru dengan mengelompokkan kategori soal berdasarkan taksonomi Bloom dan menghitung persentasenya, serta menilai soal PTS buatan guru berdasarkan kriteria LOTS, MODS, dan HOTS. Berdasarkan hasil analisis, maka dapat disimpulkan bahwa terdapat 18 butir soal (90%) yang dinyatakan valid, dan butir soal tersebut dinyatakan reliabel dengan koefisien reliabilitas 0,83. Hasil analisis soal berdasarkan taksonomi Bloom, diperoleh soal yang tergolong kemampuan memahami (C2) sebanyak 5 butir soal (25%), yang tergolong kemampuan mengaplikasikan (C3) sebanyak 10 butir soal (50%), dan yang tergolong kemampuan menganalisis (C4) sebanyak 5 butir soal (25%). Tidak terdapat soal yang tergolong kemampuan mengingat (C1), mengevaluasi (C5), dan mencipta (C6), kemudian soal digolongkan berdasarkan kriteria berpikir peserta didik, dan diperoleh soal yang tergolong Higher Order Thinking Skills (HOTS) sebanyak 5 butir soal (25%) dan soal yang tergolong Medium Order Thinking Skills (MOTS) sebanyak 15 butir soal (75%). Kata kunci: tingkat kesulitan, penilaian tengah semester, taksonomi Bloom. DOI: http://dx.doi.org/10.23960/jpmipa/v23i2.pp633-641

Subahnale dan Rang-rang Pembelajaran Matematika SMP

The purpose of this research is to find mathematical concepts in the cultural heritage of songket cloth and how to apply them as a medium for learning mathematics in junior high schools. The results of this study can be used as a reference for junior high school teachers to choose culture-based learning media related to student life, especially in Lombok. This research is an ethnomathematical research with the research method used is a qualitative research method with an ethnographic approach. The research was conducted in September, October, and November 2021 in Sukarara village, Lombok, West Nusa Tenggara. The subjects in this study were craft works in the form of songket cloth and songket weavers who were active in the village of Sukarara which consisted of three weavers. Data were collected by documentation, document observation, and interviews. The documents obtained were then analyzed related to the content of the mathematical concepts contained therein. The conclusion of this study is that the quality of mathematics learning can be improved by using the traditional songket subahnale cloth as a medium or learning aid. Some mathematical concepts that can be learned with songket subahnale as the medium are congruence, similarity, perimeter of flat shapes, area of flat shapes, folding symmetry, comparisons, pattern tracing. Songket fabrics that can be used as media are songket subahnale woven fabrics with geometric motifs such as diamond motifs, rang-rang motifs, and hexagons

Implementation of the Junior High School Mathematics Curriculum

Uplifting the quality of education, the Department of Education pushed for the full implementation of the Enhanced Basic Education Program. The purpose of this study is to examine the status of implementation of the Junior High School Mathematics Curriculum in Ilocos Sur division during the school year 2017-2018. A questionnaire was used to gather the data from selected secondary schools in Ilocos Sur division. The data gathered were treated using mean, correlation analysis and multiple regression analysis. The overall rating of the status of the implementation of the Junior High School Mathematics Curriculum was perceived high. However, it was noted that some students were found weak in some content areas. Furthermore, the result revealed that the respondents considered the teachers’ teaching methodologies and strategies significantly influenced the status of implementation of the Junior High School Mathematics Curriculum. Nevertheless, students found satisfactory in their levels of critical thinking and problem solving skills as they were not significantly influenced by the teachers’ teaching methodologies and strategies. The findings of this study must be the basis of the school administrators and teachers to improve the levels of performances of the students.

Kriteria Buku Referensi Media Pembelajaran Matematika Yang Diperlukan Bagi Guru-Guru SMP Di Mataram

The purpose of this study was to determine the criteria for a mathematics learning media reference book that is needed for junior high school mathematics teachers in the city of Mataram. The research begins with a survey on whether learning mathematics requires media, then identifies the frequency with which teachers use media in learning mathematics, as well as the reasons teachers never or rarely use media in learning mathematics. Based on the survey, it was found that teachers need reference books to develop mathematics learning media, so it is necessary to develop the criteria for the required reference books. Furthermore, a literature review was conducted to compare the needs (ideal conditions) for Learning Media reference books with the current state (real conditions). Conclusion The results of the study show that the materials that require media are: arithmetic operations Integers and fractions, Linear Equations, Sets and Venn Diagrams, geometry, Function values, function graph sketches, slopes of lines, Pythagoras, circles, tangents, inner circles and the outer circle of a triangle, the properties of geometric figures, similarity, congruence, cylinders, cones, and spheres. In addition, the media needed are Concept Maps, Informative Power Points, Interactive Power Points, Student Worksheets, Learning Videos, Teaching Aids, and GeoGebra. Furthermore, the criteria for a valid book were developed based on the results of the study which included 4 aspects, namely material aspects, language, presentation of material, and graphics

High school mathematics teachers’ competence on the contents of a quantitative research paper

<span>Competence in research is an attractive feature that should be established for all practitioners because specialists with training and expertise in research will recognize strategic thinking, interpretation, and synthesizing more easily. Hence, this study aimed to describe the knowledge competency among junior high school mathematics teachers on the research processes applied on the contents of the various sections of a quantitative research paper. The descriptive method of research has been used to characterize the knowledge competence of 108 junior high school teachers on the research processes. The study used the research skill test, which was a researcher-made instrument, consisting of 50 multiple choice items with four choices each. The instrument went through the process of validity and reliability analysis obtaining a good result of 0.81. This study revealed that they were “novice” or had achieved the learning level of competency on the research processes applied on the contents of the different parts of a quantitative research paper. More so, they identified that interpretation of statistical results was a challenging part of doing a research paper.</span>

Training of Mathematics Olympiad Contents by Using Edmodo App for Mathematics Teachers of MGMP of Junior High School in Bukittinggi City

The purpose of this study is to improve the ability of mathematics olympiad coaches through the edmodo platform, and to find out the satisfaction of Bukittinggi junior high school mathematics teachers in fostering mathematics olympiads with the edmodo application. The target audience for the service is mathematics teachers in the Subject Teachers' Consultation (MGMP) at Bukittiggi Junior High School Mathematics. This training stage begins online with workshops from home, giving out questionnaires, administering tests, then followed by giving Edmodo platform skills, strengthening math olympiad training materials, and offline discussion sessions in the Edmodo class. The results of the training implementation showed that the mastery of Mathematics teachers in junior high schools in Bukittinggi City on the Olympic material through the tests given on the Edmodo platform was 76%, meaning that teachers who participated in this activity were able to conduct mathematics Olympiad coaching with the Edmodo application. While the results of the participant satisfaction questionnaire were 81.27% participants had good satisfaction with the training activities carried out.