scholarly journals PROFIL PEMECAHAN MASALAH BARISAN DAN DERET ARITMETIKA SISWA CLIMBER DI SEKOLAH MENENGAH PERTAMA

Author(s):  
Eko Sugandi

The development of the world of education in Indonesia can not be separated from the influence of globalization, science and technology are always growing rapidly give a comprehensive impact on all aspects of human life, including the sector of education. Resilient and competitive human resources are needed to meet these challenges. Thus, the need to know about Adversity Quotient of a person to know how far a person can survive and overcome the difficulty. Mathematics which is a universal science underlies the development of modern technology and has an important role in various disciplines. The development of problem-solving abilities is also one of the most important aspects in the objectives of mathematics learning, especially on sequence materials and arithmetic series. Arithmetic sequences and series became a very important mathematical concept because of its wide application, so widely used in daily life. So this qualitative research is done with the aim to describe the process of solving the problem of rows and arithmetic series of junior high school students based on Adversity Quotient climber category. Technique of data collection is done by giving of Problem Solving Task (TPM) sequence and arithmetic series and job-based interview. Based on the analysis of research data that has been done, it is concluded that climber students in understanding the problem trend to read the problem twice. In plotting problem solving, climber students have an alternative solution to solve a given problem. At the implementation stage, climber students solve existing problems based on the most appropriate appropriate problem-solving plan and clearly disclose the truth information from the solution of the problem that has been done. The process of re-examining the problem solving, it is clear that the climber's students are re-checking and also trying to find alternative ways to solve the problem by first making an illustration of the drawing before doing the calculation process.   Key Word: Problem  Solving, Arithmetic Sequences and Series, Climber

2020 ◽  
Vol 2 (2) ◽  
pp. 145-165
Author(s):  
Erna Sari Agusta

In general, junior high school students learn mathematics with an inductive pattern. However, the statements in mathematics are obtained through a deductive mindset. Therefore we need a learning approach that can accommodate students' thinking patterns. Mathematics adheres to the law of consistency which causes the structure of material in mathematics to be hierarchically arranged, interrelated, and has characteristics that have implications for determining strategies, approaches and the use of learning media. This article aims to review the theory of the Realistic Mathematics Education Approach (PMR). An approach that can make students involved in building their own concepts and models used through problem solving. The PMR discussion begins with the definition of PMR, the principles and characteristics of PMR, and the contribution of PMR in learning mathematics. Writing this article uses the literature review method which consists of books, journal articles, and other documents related to the topic of discussion. The results of the study found that Realistic Mathematics Education (PMR) is a mathematics learning innovation that is in accordance with the 2013 curriculum.The use of contexts and models, as well as the use of student contributions through discussions to discuss various linkages between mathematics material, makes this approach able to contribute to improving five general mathematical abilities. which includes: the ability to understand mathematics, problem solving, mathematical connections, mathematical communication, and mathematical reasoning.


2019 ◽  
Vol 3 (1) ◽  
pp. 178-186
Author(s):  
Shinta Mariam ◽  
Nuni Nurmala ◽  
Devina Nurdianti ◽  
Nadila Rustyani ◽  
Amaliya Desi ◽  
...  

Dalam pembelajaran matematika,kemampuan pemecahan masalah merupakan aspek yang sangat penting untuk di perhatikan .pemecahan masalah matematika siswa smp berdasarkan langkah polya.metode pemecahan masalah seperti yang di katakan polya ada 4 fase penyelesaian masalah, yaitu : (1) menentukan hal-hal yang di ketahui dan yang di tanyakan secara lengkap. Selain itu siswa juga mampu memahami hubungan antar informasi yang di berikan. Sehingga dapat dikatan bahwa siswa mampu memahami masalah (2) menyusun suatu permisalan dan menyusun model matematika, sehingga dapat di katakan bahwa siswa mampu menyususn rencana penyelesaian.(3) menyelesaikan model matematika dengan tepat ,mampu mencari hasil akhir dari soal tersebut dan mampu melakukan oprasi hitung dengan tepat . sehingga dapat dikatakan bahwa siswa mampu melaksanakan rencana penyelesaian. (4) mengecek penyelesaian soal tersebut baik langkah-langkahnya maupun perhitungan secara menyusun kesimpulan. Sehingga dapat dikatakan bahwa siswa mampu mengecek kembali. Penelitian ini merupakan penelitian deskriptif kualitatif dengan subjek penelitian ini adalah siswa MTSn 5 Bandung Barat. maka hasil penelitian ini dapat disimpulkan bahwa peneliti melakukan penelitian di dua kelas yaitu kelas VIII E dan VIII F di MTSn 5 Bandung Barat, dengan dua metode yaitu kelas eksperimen dan kontrol. Berdasarkan hasil uji test menggunakan soal kemampuan pemecahan masalah dengan materi yang diterapkan adalah SPLDV. Dengan menguji menggunakan kolmogorof-smirnov diperoleh: Nilai signifikasi postes pada kelas VIII E yaitu kelas eksperimen terdapat hasil eksperimen 0,076 karena > 0,05. Dan mempunyai nilai rata-rata yaitu 15,6296.  Nilai signifikasi postes pada kelas VIII F yaitu kelas eksperimen terdapat hasil kontrol 0,068 karena > 0,05. Dan mempunyai nilai rata-rata yaitu 10,4815.Dan dapat disimpulkan bahwa: (1)kelas eksperimen dan kontrol  berdistribusi normal. (2)pemecahan masalah kelas eksperimen lebih baik dari pada kemampuan pemecahan masalah kelas kontrol. Kata Kunci : masalah matematika, kemampuan pemecahan masalah. ABSTRACT             In mathematics learning, problem solving ability is a very important aspect to note. Mathematics problem solving of junior high school students is based on polya step. Problem solving method as said polya there are 4 phase problem solving, that is: (1) determining things in know and ask in full. In addition students are also able to understand the relationship between the information provided. So that it can be said that the student is able to understand the problem (2) compile a model and develop a mathematical model, so that it can be said that the student is able to arrange the completion plan (3) complete the mathematical model appropriately, able to find the end result of the problem and able to do the oprasi calculate exactly. so it can be said that the student is able to carry out the settlement plan. (4) checking the solution of the matter both the steps and the calculation in conclusion. So it can be said that students are able to check again. This research is a qualitative descriptive research with the subject of this research is MTSn 5 Bandung West students. then the results of this study can be concluded that the researchers conducted research in two classes namely class VIII E and VIII F in MTSn 5 West Bandung, with two methods of experimental class and control. Based on test result test using problem solving problem with the material applied is SPLDV. By testing using kolmogorof-smirnov obtained: Postes significance value in class VIII E ie experiment class there are 0.076 experimental results because> 0.05. And has an average value of 15.6296. Postes significance value in class VIII F that is experiment class there are control result 0,068 because> 0,05. And has an average value of 10.4815.And it can be concluded that: (1) experiment and control classes are normally distributed. (2) experiment class problem solving is better than class control problem solving abilities.


2021 ◽  
Vol 12 (2) ◽  
pp. 253-266
Author(s):  
Nenden Mutiara Sari ◽  
Ana Setiani ◽  
Ina Rinangkit ◽  
Hanhan Subhan Munawar

The effectiveness of implementing online learning during the COVID-19 pandemic has not been satisfactory in terms of problem-solving abilities. The presentation of teaching materials presented in the online platforms used has not been able to identify the extent of student understanding in problem-solving exploration. Therefore, this research aims to produce Kaizala teaching materials based on problem-solving exploration. The ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model was used in this research to produce these teaching materials. The subjects of this research trial were grade VIII junior high school students in a public school in Ogan Komering Ulu Regency, Palembang. The choice of the place for this research was based on the fact that the mathematics learning carried out at the school was by utilizing social media platforms. The instruments used in this research consisted of validation sheets of material, language, presentation, and problem-solving integration, a questionnaire on the practicality of teaching materials, and a problem-solving ability test to assess the effectiveness of the developed teaching materials. The results showed that: (1) the developed teaching materials were in the valid criteria; (2) the practicality of the developed teaching materials are at very high and high criteria; (3) The developed teaching materials also meet the criteria of effectiveness, whereas many as 82 percent of the test subjects obtained a score of not less than 75 and the effect size value belongs to the large category. Thus, it can be concluded that the developed teaching materials are suitable for supporting and facilitating students in problem-solving exploration activities.


2018 ◽  
Vol 1 (3) ◽  
pp. 445
Author(s):  
Asfi Yuhani ◽  
Luvy Sylviana Zanthy ◽  
Heris Hendriana

Problem-solving ability is the ability to solve non-routine problems related to everyday life. Problem-solving learning more focuses on processes and strategies. So the process skills and strategies for solving a problem become the essential capability that must be owned in mathematics learning. The purpose of this study is to know the effect of problem-based learning approach to the problem-solving ability of junior high school students. The research method used in this research is the experimental method. The population taken in this research is all of VII grade student SMP Negeri 2 Cimahi. As a sample, the researcher took a random class, where grade VII-1 with the number of 34 students was used as the experimental class and class VII-2 with the total of 34 students used as control class. The instrument used in this research that is in the form of problem description of problem-solving ability mathematics consists of 5 item. The results of this study indicate that the problem-solving ability of the mathematical group of students whose learning using problem-based learning approaches better than the group of students whose learning using ordinary learning.


2020 ◽  
pp. 209653112093024
Author(s):  
Hengjun Tang ◽  
Wee Tiong Seah ◽  
Qiaoping Zhang ◽  
Weizhong Zhang

Purpose: Research has confirmed that students’ mathematics values significantly affect their mathematics learning. Accordingly, understanding how students’ values form and change, especially during different learning stages, is an important topic. Design/Approach/Methods: This study administered a questionnaire to investigate the values of primary, junior high, and senior high school students in Eastern China. A principal component analysis was conducted to investigate the factor structure of the students’ learning values. Then, paired sample t-tests were used to examine the differences in the two continuous categories ranking of each group, and a one-way analysis of variance with a Brown–Forsythe test was used to test the differences in the ranking of each dimension by the different grade-level groups. Findings: We found that students’ mathematics learning values consist of seven elements: culture, memorization, technology, objectism, practice, understanding, and control. Students placed different degrees of importance on these seven elements at different learning stages. Additionally, we found that junior high school is a critical period of change in students’ values. Originality/Value: These findings will be invaluable to teachers and educators as they reflect on their teaching approaches. Moreover, the findings that students’ values undergo changes in the course of their schooling are important information for educators seeking to foster students’ learning.


2016 ◽  
Vol 3 (2) ◽  
pp. 137
Author(s):  
Abdurahim Abdurahim

Penelitian ini bertujuan untuk mendeskripsikan keefektifan model pembelajaran Realistik dalam Seting Kooperatif (RESIK) ditinjau dari sikap terhadap matematika, motivasi belajar matematika, dan kemampuan berpikir kritis matematis siswa SMP. Penelitian ini adalah penelitian eksperimen semu dengan pretest-postest non equivalent group design. Penelitian ini menggunakan satu kelompok eksperimen dan satu kelompok kontrol. Populasi penelitian mencakup seluruh siswa kelas VII SMPN 1 Selong, Kabupaten Lombok Timur, NTB yang terdiri dari 6 kelas. Untuk menguji keefektifan model pembelajaran RESIK dan model konvensional ditinjau dari masing-masing aspek yaitu sikap terhadap matematika, motivasi belajar matematika, dan kemampuan berpikir kritis matematis digunakan analisis one sample t-test pada taraf signifikansi 5%. Selanjutnya untuk membandingkan keefektifan model pembelajaran RESIK dan model konvensional ditinjau dari aspek sikap terhadap matematika, motivasi  belajar matematika, dan kemampuan berpikir kritis matematis data dianalisis dengan menggunakan uji T2 Hotteling dengan taraf signifikansi 5%, dan uji-t univariat untuk menentukan model manakah yang lebih efektif. Hasil penelitian menunjukkan bahwa penerapan model pembelajaran RESIK efektif ditinjau dari sikap terhadap matematika, motivasi belajar matematika, dan kemampuan berpikir kritis matematis siswa. Model pembelajaran RESIK lebih efektif daripada model konvensional ditinjau dari sikap terhadap matematika, motivasi belajar matematika, dan kemampuan berpikir kritis matematis.Kata Kunci: realistik, kooperatif, RESIK The effectiveness of the realistic model in cooperative setting in terms of the attitude, motivation, and mathematical critical thinking skill of junior high school students AbstractThis research aimed to describe the effectiveness of the realistic model in cooperative setting (RESIK model) in terms of the attitude, motivation, and mathematical critical thinking skill of junior high school students. This research was a quasi experimental study using pretest-posttest non equivalent group design. In this study, two experimental groups were used. Population of research covered the whole number of six classes of grade VII student of SMPN 1 Selong, Lombok Timur, NTB. There were three different tests used to examine the data. One sample t-test at a significance level of 5% was used to examine the effectiveness of learning using RESIK model and conventional approach in terms of the aspect of students’ attitude toward mathematics, mathematics learning motivation, and mathematical critical thinking skill. Then the data was analyzed using T2 Hotteling test at significance level of 5% to compare the effectiveness of RESIK model and conventional approach, and the last test was by using t-univariat test to determine which approach was more effective. The result indicates that both RESIK model and conventional approach in learning mathematics were effective in terms of the aspect of students’ attitude toward mathematics, mathematics learning motivation, and mathematical critical thinking skill at grade VII of SMPN 1 Selong. RESIK model more effective than conventional model in terms of the aspect of students’ attitude toward mathematics, mathematics learning motivation, and mathematical critical thinking skill.Keywords: realistic, cooperative, RESIK


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
M. Andy Rudhito ◽  
D. Arif Budi Prasety

Abstrak: Penelitian ini bertujuan untuk menghasilkan soal matematika model TIMSS yang valid dan praktis untuk siswa SMP berdasarkan Kurikulum 2013. Metode penelitian yang digunakan adalah penelitian pengembangan. Proses pendesainan soal sebagai instrumen penilaian dilakukan dengan prototyping. Prototyping meliputi dua tahap. Prototipe I merupakan hasil desain dan penyusunan soal-soal oleh peneliti sendiri, sedang prototipe II revisi dari prototipe I berdasarkan masukan dari pakar, teman sejawat, dan guru matematika, yang berupa catatan validator dan notulensi diskusi. Hasil penelitian menunjukkan bahwa buku soal yang disusun dengan pengelompokan bab mengikuti ranah materi seperti dalam TIMSS, yakni bilangan, geometri, aljabar, data dan peluang. Buku soal untuk siswa tidak perlu ada tulisan mengenai ranah materi, topik pokok, dan ranah kognitif. Masukan untuk perbaikan dari FGD adalah soal sebaiknya diawali dari yang mudah, sedang, baru yang sulit. Penulisan soal pilihan ganda lebih baik tidak menggunakan kalimat tanya, melainkan dengan membuat pernyataan yang memuat titik-titik, baik di tengah atau di akhir kalimat. Soal sebaiknya tidak memuat pernyataan implikasi. Kata kunci: Pengembangan soal, matematika SMP, TIMSS, Kurikulum 2013DEVELOPING THE TIMSS MATH PROBLEM MODEL TO SUPPORT THE MATHEMATICS LEARNING IN GRADE VII USING THE 2013 CURRICULUM Abstract: This study was aimed to produce a valid and practical TIMMS math problem model for junior high school students using the 2013 curriculum. The study used the research and development design. The design process of the problems as assessment instruments was carried out through prototyping involving two stages. Prototype I was the design product and the problem development done by the researchers themselves, while Prototype II was the revision of Prototype I based on the feedback provided by experts, colleagues, and Mathematics teachers in the form of validators’ notes and the minutes taken from discussions. The findings showed that the book of math problems was written by grouping the chapters following the materials domains as those in TIMSS, that is, numbers, geometry, algebra, data, and probability. For the student book, it was not nsecessary to write the materials domain, the essential topics, and the cognitive domain. The feedback from the FGD was that the problems should be arranged from the easiest ones to the most difficult ones. The multiple choice items should not be written in the form of questions, but in the form of incomplete sentences with the blanks in the middle or the end of the sentences. The items should not ask about implication. Keywords: Development of problems, junior high school mathematics, TIMSS, Curriculum 2013


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