scholarly journals Analyzing Students’ Error in Problem Solving of Two-Variable Linear Equation System: A Case Study of Grade Eight Students of Indonesian Junior High School

2019 ◽  
Vol 18 (11) ◽  
pp. 283-296
Author(s):  
Tri Santoso ◽  
Hendri Lutfiatul Hamam Nafis ◽  
M. Yoga Oktama
Keyword(s):  
High School ◽  
Problem Solving ◽  
Linear Equation ◽  
Junior High School ◽  
Junior High ◽  
Equation System ◽  
System A ◽  
Linear Equation System

Teaching Materials of Problem-Based Linear Equation System with Two-Variables for Eighth-Grade Students in Junior High School

2021 ◽  
Vol 1 (1) ◽  
pp. 119-123
Author(s):  
Nurhayati Abbas ◽  
Nancy Katili ◽  
Dwi Hardianty Djoyosuroto
Keyword(s):  
High School ◽  
Linear Equation ◽  
Junior High School ◽  
Junior High ◽  
Equation System ◽  
Eighth Grade ◽  
Teaching Material ◽  
Teaching Materials ◽  
Linear Equation System ◽  
Eighth Grade Students

This research is motivated by the lack of mathematics teaching materials that can make students learn on their own. The teaching material can be created by teachers as they are the ones who possess the knowledge about their students’ characteristics. Further, learning materials are a set of materials (information, tools, or texts) that can aid teachers and students to carry out the learning process. The two-variable linear equation system (SPLDV) is one of the mathematics materials taught to eighth-grade students of junior high school; it contains problems related to daily life. However, it is found that this material is still difficult to master by most students. Therefore, it is necessary to develop the SPLDV teaching materials that can help students learn and solve problems as well as be used as examples by teachers in developing other materials. This research aimed to make problem-based SPLDV teaching materials. The research method refers to the Four-D Model by Thiagarajan, Semmel, and Semmel (1974). It consisted of defining, designing, developing, and disseminating. The results showed that problem-based SPLDV teaching materials could be used in learning activities as the students and the teachers had shown their positive responses after going through expert assessments. This study also suggested that the teachers use this teaching material and adopt teaching materials for other similar materials.

scholarly journals How to Teach Mathematical Concept Easily? (Learning Trajectory of Two-Variable Linear Equation System Topic in Junior High School)

2020 ◽  
pp. 5-13 ◽  
Author(s):  
H. Retnawati ◽  
E. Sulistyaningsih ◽  
R. Rasmuin
Keyword(s):  
High School ◽  
High School Students ◽  
Linear Equation ◽  
Junior High School ◽  
Design Research ◽  
Junior High ◽  
Linear Equations ◽  
Equation System ◽  
Learning Trajectory ◽  
Linear Equation System

The intention of this study was to find the learning trajectory of two-variable linear equations system in Junior High School. This study was design research using validation study. The participants of this study were Junior High School students in grade IX SMPIT Luqman al-Hakim Yogyakarta Indonesia. Data were collected through observation and interview. Data were analysed using Milles & Huberman model. Result revealed that the learning trajectory of the two-variables linear equation system were to deepen the mastery of algebra and one-variable linear equation system, model the two-variable linear equation system, solve the experiments, complete the two-variable linear equation using graphs, complete two-variable linear equations by substitution, simple elimination, complex elimination, and mixed method, and solve two-variable linear equation system problems. Keywords: learning trajectory, two-variable linear equation system, design research.

Understanding Interaction Inside and Outside the EFL Self-Concept System: A Case Study of Chinese Learners in Junior High School

2015 ◽  
Vol 38 (2) ◽  
Author(s):  
Xia Chen ◽  
Hao Xu
Keyword(s):  
High School ◽  
Junior High School ◽  
Junior High ◽  
The Self ◽  
Self Concept ◽  
Efl Learners ◽  
Concept System ◽  
System A ◽  
Chinese Learners

AbstractThis case study on three Chinese EFL learners in junior high school examined the interaction inside and outside learners’ EFL self-concept system, and the findings revealed: (1) inside the self-concept system, the interaction between the global and specific self-concepts is of much complexity; (2) the gap between the global and specific self-concepts would cause imbalance in the self-concept system, and thus trigger efforts to improve learning, while some reconciling elements in the global self-concept may sustain balance in the self-concept system, inhibiting learners’ motivation to improve; and (3) the degree of specificity of learners’ specific selfconcepts that inform learners’ learning efforts contributes considerably to the outcome of these efforts, as does that of learners’ beliefs about EFL learning which mediate the learning efforts.

scholarly journals Kemampuan siswa menyelesaikan masalah berbentuk soal cerita sistem persamaan linear ditinjau dari kemampuan penalaran

2020 ◽  
Vol 15 (2) ◽  
Author(s):  
Dimas Aditya Yudha Pradana ◽  
Budi Murtiyasa
Keyword(s):  
Problem Solving ◽  
Linear Equation ◽  
Junior High School ◽  
Mathematical Reasoning ◽  
Sampling Technique ◽  
Equation System ◽  
Data Presentation ◽  
Linear Equation System ◽  
Problem Solving Strategies ◽  
Reasoning Skills

Tujuan penelitian ini adalah mendeskripsikan kemampuan pemecahan masalah dalam menyelesaikan soal cerita sistem persamaan linear dua variabel ditinjau dari kemampuan penalaran matematis. Penelitian ini merupakan penelitian kualitatif dengan metode deskriptif. Subjek dalam penelitian adalah siswa kelas VIII C SMP Muhammadiyah 10 Surakarta tahun 2019/2020. Teknik pengumpulan data berupa hasil tes, wawancara dan dokumentasi. Teknik analisis data menggunakan reduksi data, penyajian data dan penarikan kesimpulan. Teknik pengambilan subjek berdasarkan tingkat kemampuan penalaran matematis siswa sehingga diperoleh 3 subjek kelas VIII C dengan kategori penalaran matematis rendah, sedang dan tinggi. Hasil penelitian menunjukkan bahwa (1) Siswa penalaran matematis rendah belum menentukan syarat cukup dan syarat perlu dalam memahami masalah, belum dapat menentukan strategi menyelesaikan masalah, belum dapat melaksanakan rencana dan belum dapat memeriksa perhitungan jawaban. Siswa penalaran matematis sedang mampu menentukan syarat cukup dan syarat perlu dalam memahami masalah, dapat menentukan strategi menyelesaikan masalah, belum dapat melaksanakan rencana dan belum dapat memeriksa perhitungan jawaban. Siswa penalaran matematis tinggi mampu menentukan syarat cukup dan syarat perlu dalam memahami masalah, mampu menentukan strategi menyelesaikan masalah, dapat melaksanakan rencana dan dapat memeriksa perhitungan jawaban. (2) Penyebab kesalahan siswa yaitu siswa tidak menuliskan semua informasi, tidak melakukan permisalan dan penulisan yang tidak sistematis. The students' ability to solve world problems of linear equation system in term of reasoning skillsAbstractThis study aimed to describe the students’ ability to solve word problems of the two-variable linear equation system in terms of mathematical reasoning skills. This study was qualitative research with descriptive methods. The subjects consisted of three students selected using purposive sampling technique from twenty grade-eight students of SMP Muhammadiyah 10 (Junior High School) Surakarta, Indonesia. The subjects' selection was based on the level of mathematical reasoning skills, namely low, medium, and high. We were collecting data using a test, interviews, and documentation. The stages of data analysis include data reduction, data presentation, and concluding. The results showed that (1) student with low mathematical reasoning was not able to understand problems, determine problem-solving strategies, implement plans, and locking-back the solution; (2) student with moderate mathematical reasoning was able to understand problems and determine problem-solving strategies, but has not been able to carry out plans and locking-back the solution; (3) student with high mathematical reasoning was able to understand problems, determine problem-solving strategies, carry out plans, and locking-back the solution; (4) the causes of student errors, namely students did not write down all important information in the problems, doing mathematical modeling, write unsystematic solutions, and did not conclude solutions correctly.

scholarly journals Pengaruh Strategi Heuristik Pada Pendekatan Pemecahan Masalah Dalam Pembelajaran Matematika Kelas VIII SMP

2018 ◽  
Vol 2 (2) ◽  
pp. 157
Author(s):  
Dewi Pramita ◽  
Muh Rusmayadi
Keyword(s):  
High School ◽  
Problem Solving ◽  
Linear Equation ◽  
Learning Outcomes ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Problem ◽  
Average Value ◽  
Heuristic Strategies ◽  
Quasi Experimental

Abstrak: Tujuan penelitian ini adalah untuk mengetahui pengaruh strategi heuristik pada pendekatan pemecahan masalah matematika siswa di kelas VIII SMP pada materi Sistem Persamaan Linear Dua Variabel. Jenis penelitian ini adalah quasi eksperimen. Populasi dari penelitian ini adalah siswa kelas VIII SMP. Instrument yang digunakan adalah tes yang berjumlah 6 soal uraian. Hasil penelitian menunjukkan bahwa rata-rata hasil posttest kelas eksperimen sebesar 65,8 dan nilai rata-rata kelas kontrol sebesar 58,68. Hasil uji-t diperoleh t-hitung sebesar 2.53   dan t-tabel sebesar 2,02. Hal ini menunjukkan bahwa hasil belajar antara siswa kelas eksperimen dan kelas kontrol terdapat perbedaan yang signifikan setelah diberikan perlakuan berbeda. Sehingga strategi heuristik pada pendekatan pemecahan masalah yang digunakan lebih berpengaruh terhadap hasil belajar siswa dibandingkan dengan metode pembelajaran langsung pada materi persamaan linear dua variabel.Abstract:  The purpose of this study was to determine the effect of heuristic strategies on the mathematical problem solving approach of students in class VIII of Junior High School on the material of Two Variable Linear Equation Systems. This type of research is quasi-experimental. The population of this study was the eighth grade students of junior high school. The instrument used is a test which amounts to 6 questions. The results showed that the average results of the experimental class posttest were 65.8 and the control class average value was 58.68. The t-test results obtained t-count of 2.53 and t-Tabel of 2.02. This shows that the learning outcomes between the experimental class students and the control class have significant differences after being given different treatments. So that the heuristic strategy in the problem solving approach used is more influential on student learning outcomes compared to the direct learning method in the two-variable linear equation material

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