scholarly journals Meningkatkan Kemampuan Komunikasi Matematis Dan Self Confidence Siswa Menggunakan Pendekatan PBL Berbantuan Geogebra

Author(s):  
Dwi Andini ◽  
Nenden Mulyani ◽  
Tommy Tanu Wijaya ◽  
Devi Nurul Supriyati

This study aims to examine the mathematical communication skills of students whose learning using Problem Based Learning approach GeoGebra assisted compared with using ordinary learning. This research is using the experimental method. Population in this research is a student of class X SMAN 1 Parongpong West Bandung academic year 2017/2018 with a sample of research is a student of class X SMAN 1 Parongpong consisting of class X Mia 1 as control class and X Mia 4 as experiment class is taken at random. The instrument used in this research is a test of mathematical communication ability in the form of problem description as much as 8 questions, as well as Self Confidence scale. Data were analyzed using IBM SPSS Statistic 1.7 for windows program. From this research, the following results are obtained: (1) Improvement of mathematical communication ability of students whose mathematical learning using geographic assisted PBL approach is better than using ordinary learning. (2) Increased self-confidence of students using geographic-assisted PBL approach is better than students using conventional learning Keywords:       Communication Ability, Self Confidence, Problem Based Learning, Geogebra

2016 ◽  
Vol 11 (2) ◽  
pp. 111
Author(s):  
Abdul Khamid ◽  
Rusgianto Heri Santosa

Penelitian ini bertujuan untuk menguji keefektifan pendekatan Problem-Based Learning (PBL) dan Contextual Teaching and Learning (CTL) ditinjau  dari kemampuan komunikasi matematis dan motivasi belajar siswa dan manakah yang lebih efektif diantara keduanya. Penelitian ini merupakan penelitian eksperimen semu. Populasinya adalah seluruh siswa kelas VIII SMP Negeri 1 Margasari Kabupaten Tegal. Sampel penelitian kelas VIII-A dan VIII-H. Untuk menguji keefektifan pendekatan pembelajaran data dianalisis dengan uji one sample    t- test pada taraf signifikansi 5%. Untuk mengetahui perbedaan keefektifan pembelajaran data diukur dengan  uji Hotelling’s Trace pada taraf signifikansi 5% dan selanjutnya digunakan uji independent sample t-testuntuk mengetahui pembelajaran mana yang lebih efektif. Hasil penelitian menunjukkan bahwa: pendekatan PBL dan CTL efektif ditinjau dari kemampuan komunikasi matematis dan motivasi belajar siswa dan pendekatan PBL lebih efektif dibandingkan dengan pendekatan CTL ditinjau dari motivasi belajar siswa, namun tidak lebih efektif ditinjau dari kemampuan komunikasi matematis.Kata Kunci:  pendekatan Problem-Based Learning, pendekatan Contextual Teaching and Learning,   kemampuan komunikasi matematis, dan motivasi belajar siswa. The Effectiveness of PBL Approach and CTL Viewed from Mathematical Communication and Learning Motivation of Students Junior High School  AbstractThis study aims to examine  the effectiveness of Problem Based-Learning (PBL) and Contextual Teaching and Learning (CTL) viewed from students’ mathematical communication ability and learning motivation and which more effective instruction between PBL approach and CTL approach. This study was quasi experiment research. The population covered all grade VIII students of SMP Negeri 1 Margasari in Tegal Regency.  The sample of class VIII-A and VIII-H. To test the effectiveness of the PBL and CTL approaches, the data were analyzed using the one-sample t-test at the significance level of 5%. To determine differences in the effectiveness of mathematics teaching data were analyzed using Hotteling Trace at the significance level of 5% and followed by independent sample t- test to determine which approach was more effective. The results of this study show that: the PBL approach and CTL is effective to increase students’ communication ability and learning motivation and the PB L approach is more effective than the CTL approach viewed from students’ learning motivation but not more effective viewed from mathematical communication ability .Keywords: Problem-Based Learning approach, Contextual Teaching and Learning approach, mathematical communication ability, student’s learning motivation.


Author(s):  
Elisabeth Margareth Gultom ◽  
Edi Syahputra ◽  
Kms. Muhammad Amin Fauzi

This study aims to determine: (1) The differences in students' mathematical communication abilities by implementing Batak culture-oriented learning on problem-based learning (PBM-B3) and guided discovery (PT-B3) and (2) the interaction between learning models and students' gender towards students’ mathematical communication abilities. This research is quasi-experimental. The population of this study was first-grade students of SMP Swasta Putri Cahaya 2018/2019 with a sample taken from class VII-1 treated with the PBM-B3 learning model and class VII-2 treated with PT-B3 learning model. Each class consists of 14 male students and 14 female students. The research instrument used was a test of students' mathematical communication abilities. Data analysis was performed using covariance analysis (ANACOVA). Based on the research conducted, the results showed that: (1) There were differences in the students' mathematical communication abilities who were treated with the PBM-B3 and PT-B3 learning model after controlling the initial abilities of students. The interaction patterns of Dalihan Na Tolu found in the two learning models showed a positive effect on students' mathematical communication abilities because this interaction pattern is inherent in students which resulted in higher self-confidence in communicating ideas during problem-solving. (2) There was an interaction between the learning model and the gender of students on their mathematical communication abilities after controlling the initial abilities of students.


2018 ◽  
Vol 1 (4) ◽  
pp. 479
Author(s):  
Siti Muniroh ◽  
Tina Rosyana ◽  
Heris Hendriana

This study examines the relationship between self-confidence with students' mathematical communication skills. This research uses expost pacto method with correlation analysis technique. The population in this study is all students of class IX in one of the SMP Negri in Cimahi city (IX.A - IX.N) with the number of 504 students / The academic year 2017/2018. As for the sample in this study is the students of SMP class IX N with the number of 36 students / i. In this study using cluster random sampling technique that is random sampling. In the data collection is by using the questionnaire instrument (self-confidence questionnaire) and test of mathematical communication skills. Further data is analyzed quantitatively by using Pearson correlation formula in SPSS application. The results showed that there was a positive relationship between self-confidence with students' mathematical communication ability, with correlation coefficient value of 0.865 and Sig. (2-tailed) 0.000.


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.


2019 ◽  
Vol 2 (5) ◽  
pp. 301
Author(s):  
Amiaji Salim

This study is aimed at analyzing students' mathematical communication skills based on the results of observations, namely the ability of junior high school students. Subjects consisted of 20 students with categories using high, medium, and low grades. The method used is the Problem Based Learning approach. Data obtained from student results because of student tests and how students in finding mathematical communication solutions students who can solve problems and can solve mathematical problems well. But few students can solve problems because students perceive that mathematics learning is very difficult, especially mathematics communication material. After the treatment of Problem Based Learning, children's results are better than classes that use normal learning. With the increase in the authors concluded that the Problem Based Learning approach can be further investigated with a lot of practice. researchers hope that the Problem Based Learning approach can add insight to students.


2018 ◽  
Vol 1 (1) ◽  
pp. 27-38
Author(s):  
Erfan Sufena ◽  
Suyono Suyono ◽  
Lukman El Hakim

This study aims to see the influence of cooperative methods of group investigation type (hereinafter abbreviated as MKTIK) to the ability of mathematical communication and self confidence of students. This research was conducted at SMP Negeri 123 Jakarta in the academic year 2016/2017. The research method used quasi experiment (quasi experiment). The reasonably affordable population of this study is four classes in SMP Negeri 123 Jakarta (two classes studying through cooperative type-type investigative methods and two classes that received conventional learning). After testing, the data used are normally distributed, have the same or homogeneous variance, and have an average similarity. The result of this research are 1) there are difference of mathematical communication ability of students who learn through MKTIK compared with students who get conventional learning, 2) there is interaction influence between learning method and mathematical early ability to students mathematical communication ability, 3) there is difference of students' mathematical communication ability With a high mathematical early ability to learn through MKTIK compared with students who received conventional learning, 4) there was no difference in mathematical communication ability of students with low early mathematical skills learning through MKTIK compared with students who received conventional learning, and 5) there was a difference of self confidence Students who learn through MKTIK compared with students who received conventional learning.


Author(s):  
Ek Ajeng Rahmi Pinahayu ◽  
Aulia Ar Rakhman Awaludin ◽  
Purni Munah Hartuti

The study aims to determine the effectiveness of mathematics learning achievement for students who are subject to the Problem Based Learning model assisted by CD Learning and CD Interactive as well as Conventional learning models on flat-build material. The population in this study were seventh grade students of SMP Negeri 223 Jakarta Timur in the academic year 2017/2018. By using selected cluster random sampling techniques VII 3 as the control class, VII 6 and VII 7 respectively as the experimental class PBL models assisted CD learning and assisted PBL models CD Interactive. Data were obtained by documentation and tests, then analyzed by Normality, Homogeneity, One-way Variant Analysis (ANOVA), Two-party and One-party Similarity Test. The results showed that there were significant differences between mathematics learning achievement of students who were taught by learning using PBL models assisted by CD Interactive, PBL models assisted by CD learning and conventional learning. Learning achievement of students who get learning using CD Interactive media is better than students who get conventional learning. Likewise, the learning achievements of students who get learning using CD Learning, media are better than students who get conventional learning. In addition, there were no significant differences between the mathematics learning outcomes of students who were taught using PBL models assisted by CD Interactive and students using PBL models assisted by CD Learning.


2018 ◽  
Vol 1 (1) ◽  
pp. 19 ◽  
Author(s):  
Utari Sumarmo ◽  
Elis Mulyani ◽  
Wahyu Hidayat

This study is a pre test-post test experiment with control group design having a goal to analyze  the role of scientific approach on students’ mathematical communication ability (MCA) and self confidence (SC). The study involves 46  eleventh grade Vocational School students, a mathematical communication test, a mathematical  self confidence scale (MSC), and a perception on scientific approach scale. The study found that on MCA and its Normalized Gain (N<G>), students getting treatment with scientific approach attained  better grades than the grades of students taught by conventional teaching, but both student’s grades were still at low-medium level.  On MSC,  there was no different grades between students on both teaching approaches, and those grades were at medium level.  The other findings, there is no association between MCA and MSC, and students performed high perception toward scientific approach.


2020 ◽  
Vol 4 (1) ◽  
pp. 62
Author(s):  
Nur Atika ◽  
Yenita Roza ◽  
Atma Murni

This research was motivated by the lack of learning tools that can improve students' Mathematical Communication Skills (KKM). Activities that can encourage students to improve KKM have not been designed by the teacher in the learning device properly. This study aims to produce learning tools by applying Problem Based Learning models to improve KKM. This development research used the ADDIE development model with the stages of Analysis, Design, Development, Implementation, and Evaluation. The results of Syllabus, RPP, LKPD and KKM validation results showed highly valid criteria with percentages of 91.67%, 91.30%, 89.09%, and 87.15%, respectively. Practicality results indicate a very practical criterion with the percentage of small group trials at 95.57%, large group trials at 96.07%, and teacher responses at 96.25%. The effectiveness test results state that KKM of students who use learning tools with PBL models is better than KKM of students who use conventional learning.


2018 ◽  
Vol 6 (3) ◽  
pp. 419-430
Author(s):  
Teni Sritresna

AbstrakPenelitian ini dilatarbelakangi oleh hasil penelitian-penelitian terdahulu yang menunjukkan masih rendahnya kemampuan komunikasi matematis dan self-confidence siswa dalam belajar matematika. Learning Cycle 7E merupakan salah satu model pembelajaran yang diharapkan dapat meningkatkan kemampuan komunikasi matematis dan self-confidence siswa. Tujuan dari penelitian ini untuk mengetahui peningkatan kemampuan komunikasi matematis dan self-confidence siswa yang mendapatkan model pembelajaran learning cycle 7E dengan yang mendapatkan model pembelajaran konvensional. Penelitian ini merupakan penelitian kuasi eksperimen dengan populasi siswa di salah satu SMP di Kabupaten Garut. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Instrumen yang digunakan dalam penelitian ini berupas tes kemampuan komunikasi matematis dan skala sikap self-confidence siswa. Hasil analisis data menunjukkan bahwa peningkatan kemampuan komunikasi matematis dan self-confidence siswa yang mendapatkan model pembelajaran learning cycle 7E lebih baik daripada siswa yang mendapatkan pembelajaran konvensional. AbstractThis research is motivated by the results of previous studies which indicates the low ability of mathematical communication and self-confidence of students in learning mathematics. Learning Cycle 7E is one of the learning model that is expected to improve the ability of mathematical communication and self-confidence of students. The purpose of this study to determine the improvement of mathematical communication skills and self-confidence of students who get learning model of learning cycle 7E with which get the conventional learning model. This research is a quasi-experiment research with student population in one of junior high school in Garut. Sampling is done by using purposive sampling technique. The instrument used in this study examined the ability of mathematical communication and the scale of student self-confidence attitude. The result of data analysis shows that the improvement of mathematical communication ability and self-confidence of students who get the learning model of learning cycle 7E is better than students who get conventional learning.


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