scholarly journals Kemampuan Pemecahan Masalah Matematika Pada Soal Open Ended Materi Lingkaran Berdasarkan Kemampuan Awal Matematika Siswa

2021 ◽  
Vol 1 (3) ◽  
pp. 433-441
Author(s):  
Tri Rahayu Agustina ◽  
Sri Subarinah ◽  
Nurul Hikmah ◽  
Amrullah Amrullah

The research was aims to describe the problem solving in mathematics ability on open ended with circle material based on the early mathematical ability of the students at 9th grade junior high school 8 mataram. The type of the research is a descriptive study with quantitative approach. The research subject are 28 students which selected with purposive sampling. The subject is grouped according to early abilities of high, moderate, and low mathematics using the midterms. The data-collection method used is an open-ended problem-solving test on a loop of 2 terms of description and interview methods. The results were analyzed based on an indicator of problem solving capability according to Polya. Based on the data analysis, student problem solving capabilities with advanced mathematical abilities fall into good category, averaged 79.69. The student problem-solving capability with the early math skills is in good category, with an average score of 77.50. Student problem solving with early abilities of low math falls in the less category, with an average value of 48.30. The students with advanced math skills and are filling indicators of understanding the problem, planning a settlement and carrying out a completion plan, but have not yet met the checking indicator.

2021 ◽  
Vol 1 (1) ◽  
pp. 18-25
Author(s):  
Irma Permata Sari ◽  
Sutarno Sutarno ◽  
Eko Swistoro

ABSTRAKPenelitian ini yang bertujuan untuk mendeskripsikan kelayakan dan karakteristik perangkat pembelajaran model cooperative problem solving untuk melatihkan keterampilan pemecahan masalah siswa pada materi momentum dan impuls. Model pengembangan yang digunakan pada penelitian ini adalah model pengembangan 4D, yaitu define, design, develop dan disseminate namun hanya dilakukan sampai tahap develop. Validasi dilakukan oleh 3 judgement ahli untuk menilai produk yang dikembangkan. Kelayakan perangkat pembelajaran ini menurut nilai rata-rata hasil uji validasi ahli yaitu kelayakan RPP adalah 89% dalam kategori sangat layak, kelayakan LKS 91% dalam kategori sangat layak dan kelayakan soal tes 89% dalam kategori sangat layak dengan nilai rata-rata keseluruhan 90% dalam kategori sangat layak sehingga dapat disimpulkan bahwa perangkat pembelajaran yang dikembangkan sudah layak, dengan karakteristik perangkat pembelajaran antara lain: RPP menggunakan langkah-langkah kegiatan pembelajaran model cooperative problem solving, LKS yang berisi kegiatan praktikum dengan langkah-langkah penyelesaian masalah yang bertujuan melatihkan keterampilan pemecahan masalah siswa dan soal tes beserta jawaban atau penyelesaian soal yang melatihkan keterampilan pemecahan masalah siswa.Kata kunci: penelitian dan pengembangan, perangkat pembelajaran, cooperative problem solving, keterampilan pemecahan masalahABSTRACTThe research aimed to describe the feasibility and characteristics of a cooperative problem solving model of learning tools to train students' problem solving skills in momentum and impulse material. The development model used in this research is the 4D development model, namely define, design, develop and disseminate but only done until the develop stage. Validation is carried out by 3 expert judgments to assess the product being developed. The feasibility of this learning device according to the average value of the expert validation test results, namely the feasibility of the RPP is 89% in the very feasible category, the feasibility of the LKS 91% in the very feasible category and the feasibility of the test questions 89% in the very feasible category with an overall average score of 90% in the very feasible category so it can be concluded that the learning tools developed are feasible, with the characteristics of the learning tools, among others: RPP uses the steps of learning activities in the cooperative problem solving model, worksheets containing practicum activities with problem solving steps aimed at practicing solving skills student problems and test questions along with answers or problem solving that practice student problem solving skills.Keywords: Research and development, learning tools, cooperative problem solving, problem solving skills


2019 ◽  
Vol 3 (4) ◽  
pp. 743
Author(s):  
Salfilla Juliana

This research was motivated by the weakness of teachers in carrying out the learning process in Bandar Laksamana 1 Public Middle School. The purpose of this study is to improve the skills of teachers teaching in the classroom with the help of supervision. This research was conducted at Bandar Laksamana 1 Public Middle School. This research is a classroom action research consisting of two cycles with. Each cycle consists of four stages such as planning, implementation, observation, and reflection. The results of the study show that on the basic score, teacher teaching skills are included in the sufficient category with an average score of 60.21. After improvements were made in the first cycle, the results of the teacher's skills assessment increased to a good category with the teacher's average score of 75.54. For the implementation of the teacher's skills assessment in teaching in the second cycle again increased with a very good category with an average value of 85.75. Based on the results of the above research, researchers can conclude that with the implementation of supervision in Bandar Laksamana 1 Junior High School can improve teacher skills in teaching.


2018 ◽  
Vol 2 (2) ◽  
pp. 156
Author(s):  
Zulkifli Zulkifli

This research is based on the low learning outcome of mathematics students of grade VIII SMPN 4 Tambang.The purpose of this research is to improve the learning outcomes of mathematics through the application ofinquiry learning with CTL approach. This research was conducted in SMPN 4 Tambang with subject of classVIII-D students with 29 students. This classroom action research was started in early January 2017. Theresearch instrument consists of a teacher and student activity sheet instrument and a test of learning outcomes.Based on the results of research and discussion can be concluded that the strategy of inquiry learning with CTLapproach can improve student learning outcomes of mathematics on the subject matter of algebraic form inclass VIII-D SMPN 4 Tambang. On the basic score the number of students who reached the KKM as many as 14people (48.28%) with an average score of 58.79. In cycle I the number of students who reach the KKM of 19people (65.52%) with an average value of 65.69%. In cycle II the number reaching KKM is 25 people (86.21%).


2017 ◽  
Vol 1 (2) ◽  
pp. 225-236
Author(s):  
Andi Susanto ◽  
Sony Ariadi

This reseach is aimed at knowing the students ability in both solving the math problem and connection those who are taught by Problem Based Learning at class VIII of the Junior High school 28 Padang 2017/2018. This research is categorized as quasy Experimental Research, by using Randomized Control Group Only Design. After implementing the Problem Based Leaning, the student was directly given the test as the result showed that the score  of the student who belong to the experimental class in  problem solving recorded as 74,00 while those who were in the control class only refers to 72,30. The test average score on the experimental class in term of math connection ability was 68,73; while in the control class recorded as 62,43. The T- Test showed that T-Table equals to 1,64 with the degree of reliability 95% . This fact reveals that the students’ ability in solving the problem after being taught through Problem Based Learning is higher than in control class with T-count equals to 3,71; while their connection math ability through Problem Based Learning Model in the Experimental Class is higher than control with T-count 2.17.Keywords: Problem Based Learning, problem solving, mathematics connection


2016 ◽  
Vol 4 (1) ◽  
pp. 24
Author(s):  
Sri Yuliyanti ◽  
Saiful Prayogi ◽  
Bq. Azmi Sukroyanti

This research aims to enhance students’ critical thinking skills of SMP Islam Abhariyah on the academic year 2015/2016 through the application of the generative learning model. Research method used was classroom action research (PTK). This research was conducted in two cycles. Each cycle consist of planning, implementating, observating, and reflecting. Data learning activities of the students and teachers’ activities obtained by observation, while data on students’ critical thinking skills test was obtained by an evaluation at the end of each cycle. The subject of this study was 28 students in VIII-B class. Application of the generative learning model in this study considered as successful if the value of critical thinking skills of the students at a minimum categorized as critical. The data for student’s critical thinking skills was accomplished by using an essay test, and the average value of students is 41.96 (categorized very less critical) whit classical completeness achieved only 3,57% in the cycle I and in the cycle II showed the average value of the students is 68,92 (categorized critical) whit classical completeness increased to 85,71%. Research data of student’s activities was taken by using the student’s observation sheet. The average score in the cycle I is 46.50 (categorized as fairly active) and in the cycle II is 66.00 (categorized as active). The data of teacher’s activities was taken by using teacher’s observation sheet. The presentation of learning material is 64,28% (categorized as good) in the cycle I and 91,06% (categorized as very good) in the gathering II. Thus, the conclusion to this study is the application of the generative learning model can improve students’ critical thinking skills.


2018 ◽  
Vol 3 (1) ◽  
pp. 25
Author(s):  
Mustika Fitri Larasati Sibuea ◽  
Hommy Dorthy Ellyany Sinaga

AbstractThe purpose of this research is to find out whether by using algebra ladder snake learning media can improve students' math ability and can improve student learning activity. This research is a Classroom Action Research. The subject of this research is the third grade students of SD Tamansiswa Sukadamai of Asahan Regency, amounting to 30 students. And the object in this study is the use of learning media ladder algebra snake in improving students' math skills and student learning activeness. The instrument used in this research is the students' math test in the form of test essay and observation sheet. The average value of student activity observation observation cycle I and II is 2.6 and 3.9. Exhaustiveness of preliminary test was obtained at 23.33%. After learning by using algebra ladder learning medium, there was an increase in the students' mathematics ability test of cycles I and II of 62.33% and 93.33%. It can be concluded that learning using algebra stepping snake learning media can improve the mathematics ability of elementary school students. Keywords: mathematical ability, learning activity, learning media of algebra ladder snake  AbstrakTujuan penelitian ini adalah untuk mengetahui apakah dengan menggunakan media pembelajaran ular tangga aljabar dapat meningkatkan kemampuan matematika siswa dan dapat meningkatkan keaktifan belajar siswa. Penelitian ini merupakan Penelitian Tindakan Kelas. Yang menjadi subjek dalam penelitian ini adalah siswa kelas III SD Tamansiswa Sukadamai Kabupaten Asahan yang berjumlah 30 siswa. Dan yang menjadi objek dalam penelitian ini adalah penggunaan media pembelajaran ular tangga aljabar dalam meningkatkan kemampuan matematika siswa dan keaktifan belajar siswa.  Instrumen yang digunakan dalam penelitian ini adalah tes kemampuan matematika siswa dalam bentuk essay tes dan lembar observasi. Nilai rata-rata hasil observasi keaktifan siswa siklus I dan II sebesar 2,6 dan 3,9. Ketuntasan belajar tes awal diperoleh sebesar 23,33%. Setelah dilakukan pembelajaran dengan menggunakan media pembelajaran ular tangga aljabar, terjadi peningkatan pada tes kemampuan matematika siswa siklus I dan II sebesar 62,33% dan 93,33%. Dapat disimpulkan bahwa pembelajaran menggunakan media pembelajaran ular tangga aljabar dapat meningkatkan kemampuan matematika siswa sekolah dasar. Kata kunci:  kemampuan matematika, keaktifan belajar, media pembelajaran ular tangga aljabar 


2016 ◽  
Vol 2 (2) ◽  
pp. 117-131
Author(s):  
Budiyono Budiyono

The objective of this research was to know the improvement of students’ ability in writing descriptive text by using picture series media. The subject of the research was students on class H at VII (seven) Junior High School 19 Bengkulu City, there were 23 students. The form of this research was a classroom action research. The data of this research were gathered from the descriptive writing test and analyzed by using descriptive analysis. The result showed that there are an improvement of students’ ability in writing descriptive text by using picture series media on class H at VII (seven) Junior High School 19 Bengkulu City. It can be seen from the writing result on cycle I that students’ average score 70 (enough) and increased with 76,04 (good) after repaired on cycle II, then increased again after repaired on cycle III with 86,17 (very good).


2019 ◽  
Vol 8 (1) ◽  
Author(s):  
Tanti Jumaisyaroh Siregar

The purpose of this study to determine: the effect of cooperative learning type of STAD to improve problem solving ability mathematics between students who were given cooperative learning type STAD with students and who were given direct learning. The type of this research is a quasi-experimental research by taking samples from the existing population. The variable of this research consist of independent variable that is cooperative learning type STAD while the dependent variable is problem solving mathematics ability of student. This research was conducted at SMP Swasta Al-Maksum Percut Sei Tuan. This research will be conducted in the even semester of the academic year 2017/2018. The population in this study is all students  of SMP Swasta Al-Maksum Percut Sei Tuanand the sample in this study are students of grade eight by taking two classes that are VIII-4as experimental class and VII1-1as control class by random. Technique of collecting data in this research by using test. Test used is the problem solving mathematics ability test (pre test and post test). Data that have been collected then analyzed and performed hypothesis testing by using regression test. Based on the results of the analysis is obtained: there are effects of cooperative learning type STAD to improve student problem solving mathematics ability. Therefore, it is suggested that cooperative learning type STAD be used as an alternative for teachers to improve student problem solving mathematics ability.


2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Fauzan Jafri

This research is motivated by the level of junior high school students' mathematical problem solving was still low. Based on the preliminary study which conducted by one of the schools in Batam shows the average score for mathematics was 62 for 100 scale. The purpose of this study is to obtain and investigate the improvement of students' problem-solving mastery on relations and functions material as the effect of  PAKEM model. The research method which used is pre-experiment and with one group pretest-posttest design. The subjects of this study were VIII grade students of one of the first junior school in Batam at odd semester 2015-2016 academic year, totally 32 students.  Sample of this research were taken by random sampling technique. Students’ problem solving mastery was measured by using problem-solving test, whereas the students’ problem-solving mastery improvement between before and after the concept of effect size implementation was calculated to find the effect size of applying the PAKEM model. The result showed that the effect size of applying the PAKEM model on improving problem solving mastery is 3.3, it means, the PAKEM model implementation on improving problem-solving mastery on function has a strong influence. It can be concluded that the PAKEM model implementation can improve problem solving mastery.


2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Yulen Karepi Muama ◽  
A.A Sujadi

The purpose of this research is to increase the interest and the result of learning mathematics class IX Junior High School Student Class IX Smp Taman Mature Ibu Pawiyatan through Learning Strategy Improving Thinking Ability (SPPKB).The results of this study indicate that after applied Learning Strategy Model of Improving Thinking Ability (SPPKB), interest and learning achievement of mathematics have increased. Student interest increased from cycle I of 64, 79% increased to 70,81% in cycle II. While the student's learning outcomes also experienced an increase. The average value of students from the initial ability of 50.33 with 5 students (16.67%) who meet the KKM increased to 55.90 with 9 students (30.00%) who meet the KKM on cycle I. While in cycle II the average score of students increased to 78.82 with 22 0rang students (73.33%) who meet the KKM in cycle II. Thus, it is suggested that teachers in learning mathematics is suggested to use Learning Strategy Model of Improvement of Thinking Ability (SPPKB) on other materials as an alternative to increase student's interest and learning achievement.


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