scholarly journals Analisis Kemampuan Pemecahan Masalah Matematis Siswa Kelas VIII SMP Dalam Menyelesaikan Soal- Soal Geometri Bangun Ruang

2022 ◽  
Vol 6 (1) ◽  
Author(s):  
Ilham Ilham ◽  
Faradiba Jabnabillah ◽  
Siska Dwi Astiati

Students' mathematical problem solving ability is one thing that must be considered. This is because when students are given problem solving problems in the form of routine students are able to solve these problems, but if a non-routine problem arises, students will have difficulty. During teaching and learning activities students are able to solve problems when presented with questions of the same type. However, if given a variety of questions, some students have difficulty working on them. This study aims to explore and describe students' mathematical problem solving abilities in solving spatial problems. This study uses a descriptive qualitative approach. The data analysis technique in this study used descriptive analysis techniques. The results of the analysis show that high-ability subjects can understand the problem by writing steps, solving problems, re-examining the results of work very precisely and correctly. Students with moderate abilities can only solve problems without writing what is known and asked. Meanwhile, low-ability students cannot fulfill all aspects of mathematical problem solving.

2021 ◽  
Vol 10 (1) ◽  
pp. 141-152
Author(s):  
Hermawati Hermawati ◽  
Jumroh Jumroh ◽  
Eka Fitri Puspa Sari

AbstrakKemampuan pemecahan masalah tidak lepas dari kegiatan belajar mengajar pada umumnya karena keberhasilan seseorang terhadap sesuatu yang dihadapi tidak lepas dari matematika. Penelitian ini bertujuan untuk mengetahui kemampuan pemecahan masalah matematis peserta didik kelas IX di SMP Negeri 15 Palembang. Sampel pada penelitian ini di ambil secara acak yaitu peserta didik kelas IX.1 berjumlah 31 peserta didik yang dilakukan di SMP Negeri 15 Palembang tahun Pelajaran 2019/2020. Teknik pengumpulan data menggunakan soal tes berbentuk uraian materi bangun ruang (kubus dan balok). Teknik analisis data dalam penelitian ini adalah deskriptif kuantitatif. Dari hasil analisis data dan pembahasan maka dapat disimpulkan bahwa kemampuan pemecahan masalah matematis peserta didik dikategorikan rendah.  Analysis of Mathematical Problem-Solving Ability on Cubes and Blocks in Junior High SchoolAbstractThe ability to solve problems cannot be separated from teaching and learning activities in general because one's success in something that is faced cannot be separated from mathematics. This study aims to determine the mathematical Problem-solving abilities of grade IX students at SMP Negeri 15 Palembang. The sample in this study was taken randomly. namely students of class IX.1, totaling 31 students which were conducted at SMP Negeri 15 Palembang for the 2019/2020 academic year. The data collection technique used test questions in the form of a description of the material (cubes and cuboids). The data analysis technique in this research is descriptive quantitative. From the results of data analysis and discussion, it can be concluded that the students' mathematical Problem-solving ability is categorized as low.


2020 ◽  
Vol 1 (2) ◽  
pp. 44-52
Author(s):  
Nurul Nikmah ◽  
Ratri Rahayu ◽  
Nur Fajrie

This study aims are to determine the improvement of mathematical problem solving skills with the application of math mobile learning media. The study was conducted in fourth grade of SD 1 PasuruhanKidul Kudus in the academic year 2018/2019 with the number of students 19.The research method used was the classroom action research method which lasted for two cycles, namely in cycle I and cycle II. Each cycle consists of planning, implementing, observing and reflecting. The independent variable in this study is math mobile learning media, while the dependent variable is the ability to solve math problems, student learning activities, and teacher teaching skills. Data collection techniques used in this study include observation, interviews, documentation and tests. This data analysis technique uses quantitative and qualitative data analysis.The results of this study indicate that the increase is, (1) The average mathematical problem solving ability of students with the percentage of classical completeness 68.42% (enough) in the first cycle to 94.73% (good) in the second cycle, (2) Activities student learning has increased with a value of 64.48 less (need guidance) in the first cycle and 76.72 (good) in the second cycle. (3) The percentage of teaching skills of teachers has increased by a percentage of 71% (enough) in the first cycle and 80.5% (good) in the second cycle. Based on the results of research carried out in class IV SD 1 PasuruhanKidul Kudus, it can be concluded that through math mobile learning media can improve the ability to solve mathematical problems in the surrounding material and flat area, student learning activities and teaching skills of teachers in teaching and learning.


2020 ◽  
Vol 13 (1) ◽  
pp. 120
Author(s):  
Arisni Kholifatu ◽  
Tengsoe Tjahjono

ABSTRAK Tujuan penelitian ini mendeskripsikan pengaruh tahta tertinggi dan perlawanan kaum subaltern pada novel Arok Dedes karya Pramoedya Ananta Toer dengan menggunakan teori postkolonialisme Gayatri Spivak. Penelitian ini merupakan jenis penelitian deskriptif kualitatif. Pendekatan dalam penelitian ini  mengunakan pendekatan kualitatif karena dalam penelitian ini menggunakan sumber data novel Arok Dedes  yang berkisah tentang kudeta di Tanah Jawa. Data penelitian ini adalah kata, kalimat, paragraf, yang terdapat dalam novel Arok Dedes karya Pramoedya Ananta Toer dengan menggunakan teori poskolonial Ggayatri Spivak. Teknik pengumpulan data dalam penelitian ini menggunakan metode dokumentasi atau pustaka. Teknik analisis data penelitian ini menggunakan teknik analisia deskriptif. Hasil dari penelitian adalah pengaruh tahta tertinggi dan perlawanan kaum subaltern pada novel Arok Dedes karya Pramoedya Ananta Toer.Kata kunci: Subaltern, poskolonial, pengaruh tahta, perlawananABSTRACTThe purpose of this study is to describe the influence of the highest throne and the resistance of the subalterns on the novel Arok Dedes by Pramoedya Ananta Toer by using the postcolonialism theory of Gayatri Spivak. This research is a descriptive qualitative research. The approach in this study using a qualitative approach because in this study used Arok Dedes story novel as data sources  which is about a coup in Java. This research data is words, sentences, paragraphs, contained in Arok Dedes novel by Pramoedya Anan ta Toer by using postcolonial Ggayatri Spivak theory. Data collection techniques in this study used the method of documentation or literature . The data analysis technique of this study used descriptive analysis techniques. The results of the study are the influence of the highest throne and the resistance of the subalterns on the novel Arok Dedes by Pramoedya Ananta Toer. Keywords: Subaltern, postcolonial, influence of throne, resistance


2020 ◽  
Vol 1 (2) ◽  
pp. 85-96
Author(s):  
Winmery Lasma Habeahan

The purpose of this study was to determine the differences in the improvement of students' mathematical problem-solving abilities with the Contextual Teaching and Learning approach in the material of the two-variable linear equation system in class X SMA Negeri 2 Pematangsiantar. This study used an experimental method with the aim of being in accordance with the previous statement to determine the difference in students' mathematical problem-solving abilities with a contextual approach and an expository approach, with a randomized pretest-posttest control group design. The average increase in problem-solving abilities in the control class was 0.1688 while the increase in problem-solving abilities in the experimental class was 0.0085. By using the t-test (SPSS), with a value of Fcount = 10.907 and a significant level of 0.05, a significant probability is obtained 0.002 <0.05, it can be concluded that there is a difference in normalized gain or an increase in problem-solving ability with conventional and contextual approaches. Based on the average gain of the control and experimental classes, the increase in the control class using the conventional approach is higher than the experimental class with the contextual approach. The difference in increasing problem-solving abilities in conventional classrooms is possible due to differences in students' entry-level abilities, which can be seen in the average pretest of each class.


1990 ◽  
Vol 83 (4) ◽  
pp. 264-268
Author(s):  
Stanley F. Taback

In calling for reform in the teaching and learning of mathematics, the Curriculum and Evaluation Standards for School Mathematics (Standards) developed by NCTM (1989) envisions mathematics study in which students reason and communicate about mathematical ideas that emerge from problem situations. A fundamental premise of the Standards, in fact, is the belief that “mathematical problem solving … is nearly synonymous with doing mathematics” (p. 137). And the ability to solve problems, we are told, is facilitated when students have opportunities to explore “connections” among different branches of mathematics.


2008 ◽  
Vol 10 (3) ◽  
pp. 293-304 ◽  
Author(s):  
Nicholas G. Mousoulides ◽  
Constantinos Christou ◽  
Bharath Sriraman

Author(s):  
Dewi Anggreini ◽  
Daffit Krisna Saputra

The problem in this study is the low ability of students to solve problems. That is because students only refer to the examples of questions given by the teacher so that students have difficulty if given questions that are not the same as the examples given by the teacher. Diverse problem solving solutions are needed because students still find difficult to draw conclusions from the questions they have worked on. The purpose of this study is to describe students' ability to solve trigonometric problems in terms of the personality type of Myer-Briggs, namely ISTJ, ESFJ, ESTP, INFJ, ISTJ, ISTP, ESTJ, INTP and ISFJ. This research is a type of descriptive research using a qualitative approach. Methods of data collection using the MBTI questionnaire, math problem solving ability test questions and interviews. The results showed that the ISTJ personality type fulfilled 4 indicators of problem solving very well, while the personality types of ESFJ, ESTP, INFJ, ISTJ, ISTP, and ESTJ met 4 indicators of problem solving well, and for personality types ENTJ, INTP, and ISFJ were sufficient good by meeting 3 of the 4 indicators of problem solving. The results of the study can be used to improve students' mathematical problem solving abilities by further enhancing the positive characteristics present in students. Can inspire students to better understand the type of personality they have in themselves and hone their abilities to be more improved.


Author(s):  
Delima Manurung ◽  
P. Siagian ◽  
Ani Minarni

This study aims to 1) Produce the valid, practical, and effective of Realistic Mathematics Education based learning tools; 2) Analyzing the improvement of students' mathematical problem solving ability that are learned using Realistic Mathematics Education-based learning tools; and 3) Analyzing the achievement of students' self-efficacy who are taught using Realistic Mathematics Education-based learning tools. The subjects in this study were seventh grade students of Junior High School 1 Lubuk Pakam. Data collection instruments in this development are assessment instruments to assess the products that have been developed. In addition, students were given questionnaires to get data about students' Self-Efficacy. This research is Research and Development with the design of learning development models by Dick and Carey. The steps include: 1) Conducting preliminary research; 2) Making software design; 3) Collecting the materials; 4) Developing the contextual based interactive multimedia; 5) Product reviews and trials; and 6) the effectiveness of product test. The results showed Realistic Mathematics Education-based learning tools on students' mathematical problem solving ability increased from trial I to trial II with an average increase per indicator of 0.35%; 3.99%; 16.22% and 8.32%. The developed learning tool has fulfilled the effective criteria, namely the mastery learning of students classically in the first trial has reached a good category and in the second trial has reached a very good category; the achievement of student learning goals during learning activities meet the ideal criteria specified; student responses is positive to the components of learning tools and learning activities developed; and the allocation of ideal time usage.


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