scholarly journals KEMAMPUAN PEMECAHAN MASALAH MATEMATIK PADA MATERI BANGUN DATAR SISWA SMP KELAS VII

2018 ◽  
Vol 1 (4) ◽  
pp. 785
Author(s):  
Lina Rosmawati ◽  
Euis Eti Rohaeti ◽  
M Afrilianto
Keyword(s):  
High School ◽  
Action Research ◽  
Problem Solving ◽  
Junior High School ◽  
Qualitative Method ◽  
Junior High ◽  
Mathematical Problem ◽  
Mathematical Problem Solving ◽  
Seventh Grade ◽  
Classroom Action Research

This study aims to increase the problem-solving ability of students of Class VII SMP on the building of flat and rectangular. This type of research is a classroom action research. By using a descriptive qualitative method. This research was conducted on the students of Class VII of Junior High School in Karawang with 38 students. The instruments used are students' Mathematical Problem Solving abilities, cycle I and II tests after giving the action. The result of the test pad of cycle 1 is only 37.1% of students who can answer the problem well. And in cycle 2 the result of the test increases from cycle 1. Based on the indicator, it is concluded that the mathematical problem-solving ability of the seventh-grade students of SMP on the building of flat and rectangle is low.

scholarly journals Pengaruh Disposisi Matematis Terhadap Kemampuan Pemecahan Masalah Matematis Siswa

2019 ◽  
Vol 1 (1) ◽  
pp. 41-49
Author(s):  
Gisela Elfira Mayratih ◽  
Samuel Igo Leton ◽  
Irmina Veni Uskono
Keyword(s):  
High School ◽  
Problem Solving ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Problem ◽  
Mathematical Problem Solving ◽  
School Class ◽  
High School Class ◽  
Mathematical Dispositions ◽  
Linearity Test

This study aims to determine the effect of students' mathematical dispositions on mathematical problem solving abilities of students in class VII of SMP. The type of research used is quantitative. The sample in this study was class VII A, amounting to 30 people who were selected using simple random sampling from 6 existing classes. The type of data in this research is primary data with data collection used using a disposition questionnaire consisting of 28 items and tests consisting of 5 items of description. Testing the hypothesis in this study using a simple regression test. After the data is analyzed the regression equation is obtained as follows: Y = 16,312 + 0.523X. before testing the hypothesis, the data normality test and linearity test were carried out. Based on the data analysis, it was found that the t-test = 3.296 with significance = 0.003 and table = 2.048. then t count = 3.296> 2.048 = t table means that data is normally distributed. To see the achievement of the disposition indicators of junior high school students in the junior high school class, the average of each indicator is calculated and the achievement of the mathematical disposition indicator is 50.08%. Whereas for grouping mathematical dispositions, problem solving abilities obtained the highest dispositions having an average of 63.04, moderate dispositions having an average of 43.56, and low dispositions having an average of 40.51. Thus, it can be concluded that there is an influence of mathematical disposition on mathematical problem solving abilities of students of junior high school class.

scholarly journals PENINGKATAN PRESTASI BELAJAR HIMPUNAN MELALUI PENGGUNAAN PORTAL RUMAH BELAJAR

2014 ◽  
pp. 562-573
Author(s):  
Martiningsih Martiningsih
Keyword(s):  
High School ◽  
Action Research ◽  
Junior High School ◽  
Junior High ◽  
Instructional Media ◽  
Seventh Grade ◽  
Learning Achievement ◽  
The Media ◽  
Classroom Action Research

diterima: 05 Januari 2013; dikembalikan untuk revisi: 19 Januari 2013; disetujui: 6 Februari 2013.Abstrak: Matematika dianggap sulit, dan saat pembelajaran Matematika siswa cenderung kurang termotivasi untuk belajar, maka guru harus mengupayakan kemudahan dalam belajar dengan mempergunakan media yang sesuai. Tujuan penelitian ini adalah untuk meningkatkan prestasi belajar Matematika materi irisan dan gabungan dua himpunan dengan menerapkan Portal Rumah Belajar pada Kelas VII A SMP Muhammadiyah 1 Surabaya tahun ajaran 2012 - 2013. Metode penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK). Dalam penelitian ini dilakukan dua siklus dan tiap siklus terdiri dari 4 langlah yaitu : (1) perencanaan, (2) pelaksanaan, (3) observasi, dan (4) refleksi.Hasil penelitian Penggunaan Portal Rumah Belajar pada siswa Kelas VII A SMP Muhammadiyah 1 Surabaya, terbukti meningkatkan prestasi belajar siswa, sebelum tindakan siswa yang tuntas belajar sebanyak 22 siswa atau 73,3 %, pada Siklus I siswa yang tuntas sebanyak 23 siswa atau 76,7 %. sedangkan pada Siklus II siswa yang tuntas sebanyak 28 siswa atau 93,3 %. Dengan demikian kualitas pembelajaran dari sebelum tindakan sampai dengan Siklus II terjadi peningkatan. Saran dalam PTK ini adalah: Guru harus memotivasi siswa untuk belajar secara inovatif mempergunakan media pembelajaran. Guru hendaknya memiliki paradigma bahwa guru bukan satu-satunya sumber belajar. Pembelajaran Matematika hendaknya disampaikan dengan menggunakan media yang mampu menyenangkan siswa dan mampu membuat siswa aktif. Kata Kunci: Himpunan, Portal Rumah BelajarAbstract: Math is considered difficult and students have less motivation in learning math. That is why teacher must provide approprite learning medium to ease the students to learn math. The aim of this study was to increase students’ mathematic learning achievement on intersection set and union set by applying the Portal Rumah Belajar for Seventh Grade A of Muhammadiyah 1 Junior High School Surabaya year 2012 - 2013. The design of the study was Classroom Action Research. In this study two cycles were conducted, and each of which consisted of 4 steps, namely: (1) plan, (2) act, (3) observe, and (4) reflect. The use of Portal Rumah Belajar could increase the achievement of seventh grade students of Muhammadiyah 1 Junior High School Surabaya. The number of student passing the competency in the pre-action was 22 students or 73.3%, in the cycle was 23 students or 76.7%, and in the cycle II were 28 students or 93.3%. Thus the quality of learning increased between pre-action and the second cycle. Recommendation from this classroom action research was: teacher should motivate students to learn innovatively by using instructional media. Teachers should have a paradigm that teacher was not the only source of learning. Learning math should be submitted using the media to please students and be able to keep students active. Keywords: Set, Portal Rumah Belajar

scholarly journals Analisis Kemampuan Pemecahan Masalah Matematis Siswa SMP pada Materi SPLDV Ditinjau dari Kemampuan Awal Matematika

2019 ◽  
Vol 3 (2) ◽  
pp. 207
Author(s):  
Irma Purnamasari ◽  
Wahyu Setiawan
Keyword(s):  
High School ◽  
High School Students ◽  
Problem Solving ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Problem ◽  
Real Life ◽  
Mathematical Problem Solving ◽  
Research Subjects ◽  
School Students

Kemampuan pemecahan masalah matematis adalah salah satu kemampuan yang harus dikuasai oleh siswa agar mampu secara matematis memecahkan masalah sering dijumpai di kehidupan nyata. Indikator kemampuan pemecahan masalah matematis meliputi mampu memahami masalah, merencanakan strategi pemecahan masalah, melakukan strategi atau prosedur pemecahan masalah, dan memeriksa kebenaran jawaban atau hasil yang diperoleh. Penelitian ini bertujuan untuk mengetahui kemampuan pemecahan masalah matematis siswa SMP ditinjau dari Kemampuan Awal Matematik (KAM). Metode yang digunakan pada penelitian ini adalah deksriptif. Subjek penelitian yaitu siswa kelas VIII F SMP Angkasa Lanud Sulaiman yang berjumlah 30 orang. Instrumen yang digunakan dalam penelitian berupa tes soal uraian kemampuan pemecahan masalah matematis sebanyak 5 soal. Analisis data yang digunakan dalam penelitian ini adalah dengan mengelompokkan siswa berdasarkan hasil Penilaian Tengah Semester (PTS) sebagai kemampuan awal siswa. Siswa dibagi menjadi tiga kelompok, yaitu kelompok KAM atas, kelompok KAM menengah dan kelompok KAM bawah. Hasil penelitian menunjukkan bahwa siswa kesulitan mengerjakan soal nomor 5 dan baik siswa kelompok KAM atas, KAM menengah maupun KAM bawah, siswa kurang menguasai indikator ke-4 yaitu memeriksa kebenaran jawaban. Kata kunci: kemampuan awal matematika, kemampuan pemecahan masalah matematis.   ABSTRACT Mathematical problem solving ability is one of the abilities that must be mastered by students in order to be able to mathematically solve problems often found in real life. Indicators of mathematical problem solving capabilities include being able to understand problems, plan problem solving strategies, perform strategies or procedures for problem solving, and check the truth of answers or results obtained. This study aims to determine the mathematical problem solving abilities of junior high school students in terms of Early Mathematical Ability (KAM). The method used in this study is descriptive. The research subjects were class VIII F Space Junior High School Sulaiman Air Base which numbered 30 people. The instrument used in the study was a test of the questions about the mathematical problem solving abilities of 5 questions. Analysis of the data used in this study is to classify students based on the results of the Middle Semester Assessment (PTS) as students' initial abilities. Students are divided into three groups, namely the upper KAM group, the middle KAM group and the lower KAM group. The results showed that students had difficulty working on the number 5 questions and both the upper KAM group students, the middle KAM and the lower KAM students, students did not master the 4th indicator, namely checking the correctness of the answers. Keywords: initial mathematical abilities, mathematical problem solving abilities.

scholarly journals The Influence of Learning Model and Student Self-Concept Toward the Mathematical Problem-Solving Ability (Experimental Study on Students of Tangerang City State Junior High School)

2018 ◽  
Vol 9 (2) ◽  
pp. 189-198
Author(s):  
Ruby Fauziyah Andam Dewi ◽  
Anton Noornia ◽  
Eti Dwi Wiraningsih
Keyword(s):  
High School ◽  
Problem Solving ◽  
Junior High School ◽  
Junior High ◽  
Mathematical Problem ◽  
Learning Model ◽  
Self Concept ◽  
Mathematical Problem Solving ◽  
Control Group ◽  
Conventional Model

This study aims to determine the effect of Conventional Model and the Missouri Mathematics Project (MMP) learning Model with self-concept on mathematical problem- solving abilities of junior high school students. The design of this study was experimental and control group post-test design. The method used is the quasi-experimental method using treatment by level 2x2 design. The experimental class was given the MMP learning model treatment while the control class was treated with conventional model. The samples of this study were 48 seventh grade students. The instruments used were self-concept questionnaires and a test of mathematical problem-solving abilities.Technique of analysis used was two-ways ANOVA. The results of this study show that the MMP learning model has a syntax that is able to empower mathematical problem-solving abilities compared to conventional learning model. Students who have a positive self-concept or students who have a negative self-concept are more suitable to be treated with the MMP learning model than conventional learning model. 

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