scholarly journals Improving Students' Problem Solving Ability and Mathematical Communication through the Application of Problem Based Learning

Author(s):  
Hayatun Nufus ◽  
M Mursalin

The purpose of this study was to determine the improvement of students' mathematical problem solving and communication skills using problem-based learning better than ordinary learning; to determine the interaction between learning and early mathematical abilities to increase students' mathematical problem solving and communication skills; to find out how the process of answers made by students in solving problems in problem-based learning and ordinary learning. This type of research is quasi-experimental. The population in this study were all grade VII students of SMP Lhokseumawe who were accredited and the samples were randomly selected, namely: SMPN 10 consisted of class VII-4 (experimental class) and class VII-2 (control class), SMPN 11 Lhokseumawe consisted of class VII- 3 (experimental class) and class VII-1 (control class). Data analysis was performed using two-way ANOVA. The results of this study indicate that there is an increase in the problem-solving ability and mathematical communication of students using problem-based learning better than students who receive regular learning; there is no interaction between learning and the level of students 'ability to increase students' problem-solving abilities and mathematical communication; the process of solving the problem of students' answers to learning using problem-based learning is better than ordinary learning.

Author(s):  
Puri Nur Aisyah ◽  
Anik Yuliani ◽  
Euis Eti Rohaeti

This study aims to describe the ability of communication and problem solving of mathematical students in the material quadrilateral and triangle in class VII in one district of MTs Bandung. This type of research is qualitative research with phenomenology model which aims to interpret communication ability and ability to solve the mathematical problem of students. The subjects of this study were 24 students for communication skills and 25 students for math problem-solving skills. The result of data analysis shows that the mathematical communication ability of grade VII students in one MTs in Kabupaten Bandung is still relatively low with the highest percentage being in the low communication ability qualification which is 37.5%, while for students who have ability is get percentage equal to 29,2% and for students with high communication skills get a percentage of 33.3%, while for problem-solving skills in class VII is quite good with the highest percentage in qualification students with high problem-solving ability with a percentage of 44%, while for qualified students who ability is getting percentage by 40%, and for low qualifications only got a percentage of 16%.. Keywords: mathematical communication ability, mathematical problem-solving ability


2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Kairuddin . .

ABSTRAK Tujuan dari penelitian ini untuk mengetahui perbedaan kemampuan pemecahan masalah matematika siswa yang memperoleh pembelajaran kontekstual dengan siswa yang memperoleh pembelajaran berbasis masalah yang dianalisis melalui lembar jawaban siswa Penelitian ini merupakan penelitian eksperimen semu. Populasi pada penelitian ini adalah siswa kelas VII SMP Negeri 1 Salapian dengan sampel penelitian adalah Kelas VII-B yang diberikan perlakukan pembelajaran kontekstual dan kelas VII-C yang diberikan perlakuan pembelajaran berbasis masalah. Terdapat perbedaan kemamuan pemecahan masalah matematika antara siswa yang memperoleh pembelajaran kontekstual dengan siswa yang memperoleh pembelajaran berbasis masalah. Pada penelitian ini didapat bahwa proses jawaban siswa yang memperoleh pembelajaran kontekstual lebih baik dari proses jawaban siswa yang memperoleh pembelajaran berbasis masalah.Kata kunci:   Pembelajaran kontekstual, pembelajaran berbasis masalah, kemampuanpemecahan masalah ABSTRACTThe purpose of this study is to determine the differences in mathematical problem solving abilities of students who obtain contextual learning with students who obtain problem-based learning which is analyzed through student answer sheets. This research is a quasi-experimental study. The population in this study was the seventh grade students of SMP Negeri 1 Salapian with a sample of the study was Class VII-B which was given the treatment of contextual learning and class VII-C given the treatment of problem-based learning. There are differences in the ability to solve mathematical problems between students who get contextual learning with students who get problem-based learning. In this study it was found that the answer process of students who get contextual learning is better than the answer process of students who get problem-based learning.Keywords: Contextual Learning, Problem Based Learning,Problem solving skill


2016 ◽  
Vol 1 (2) ◽  
pp. 135-148
Author(s):  
Ana Setiani

The   aims   of   this   research   are focused  to  examine  the  effect  of  learning model      was      estimated      to      decrease mathematics    anxiety    and    to    increase student's    mathematical    problem    solving ability.  The  instrument  that  used  for  this research were ability test of problem solving in math and mathematics quosionaire with likert  scale.  The  data  analysis  used  mixed method embedded konkruen method. Based on  data  analysis  concluded  (1)  the  result show the increasing student's mathematical problem  solving  ability  by  problem  based learning  model  better  than  by  expository teaching; (2) increasing quality of studen'ts mathematical   problem   solving   ability   by problem   based   learning   better   than   by expository      teaching.      (3)      significant differences between mathematics anxiety and the accomplisment of student's matematical problem  solving  ability  by  problem  based learning  and  by  expository  teaching  (4) significant  differences  between  decreasing mathematics   anxiety   and   increasing   of student's    mathematical    problem    solving ability  by  problem  based  learning  and  by expository   teaching.    and    (5)   there   is significan relationship between mathematics anxiety and the accomplishment of student's mathematical problem solving ability.


2018 ◽  
Vol 5 (2) ◽  
pp. 148-158 ◽  
Author(s):  
Tina Sri Sumartini

ABSTRAKPenelitian ini dilatarbelakangi oleh hasil-hasil penelitian terdahulu yang menunjukkan bahwa kemampuan pemecahan masalah matematis siswa belum sesuai dengan yang diharapkan. Salah satu pembelajaran untuk meningkatkan kemampuan pemecahan masalah matematis adalah pembelajaran berbasis masalah. Tujuan penelitian ini adalah untuk mengetahui peningkatan kemampuan pemecahan masalah matematis siswa sebagai akibat dari pembelajaran berbasis masalah. Penelitian ini adalah kuasi eksperimen yang menerapkan dua pembelajaran yaitu pembelajaran berbasis masalah dan pembelajaran konvensional. Populasi dalam penelitian ini adalah siswa di salah satu SMK di Kabupaten Garut. Pengambilan sampel dilakukan secara purposive sampling, dan diperoleh dua kelas sebagai sampel penelitian. Instrumen penelitian yang digunakan adalah tes kemampuan pemecahan masalah matematis. Berdasarkan hasil analisis tersebut diperoleh kesimpulan bahwa: (1) peningkatan kemampuan pemecahan masalah matematis siswa yang mendapat pembelajaran berbasis masalah lebih baik daripada siswa yang mendapat pembelajaran konvensional, (2) Kesalahan-kesalahan yang dilakukan oleh siswa ketika mengerjakan soal-soal yang berkaitan dengan kemampuan pemecahan masalah matematis adalah kesalahan karena kecerobohan atau kurang cermat, kesalahan mentransformasikan informasi, kesalahan keterampilan proses, dan kesalahan memahami soal.ABSTRACTThis research is motivated by the results of previous studies that showed that students' mathematical problem solving ability is not as expected. One lesson to improve mathematical problem solving is based learning problems . The purpose of this study was to determine the increase in students' mathematical problem solving ability as a result of problem-based learning. This study is a quasi-experimental study that applies two problem-based learning and conventional learning. The population in this study were students in one of the vocational schools in Garut. Sampling was done by purposive sampling, and obtained two classes as the study sample. The research instrument used was a test of mathematical problem solving abilities. Based on these results we concluded that: (1) the increase in students' mathematical problem solving ability that gets problem-based learning better than students who received conventional learning, (2) mistakes made by student when working on the problems related to mathematical problem solving ability was a mistake due to carelessness or less closely, tansform fault information, error process skills, and misunderstanding question.Keywords: problem based learning, mathematical problem solving ability


2018 ◽  
Vol 1 (4) ◽  
pp. 637
Author(s):  
M Najiyuloh Assabanny ◽  
Iyan Sopian ◽  
Heris Hendriana ◽  
Luvy Sylviana Zanthy

This research aims to examine the differences in the improvement of mathematical problem-solving abilities of MTs students with an open-ended approach and conventional learning. In this research the researchers applied quasi-experimental method, where the samples in this research are students of class VII MTs in Cianjur district and take the subject of students of MTs Tanwiriyyah class VII I a total of 41 students as experimental class who get the learning treatment using the approach Open-Ended and class VII H totaling 40 students as control class that get conventional learning. In this study the instrument that applied the test instrument of the problem-solving ability of mathematics as much as 4 item. The result of N-Gain data analysis using t` test shows students' mathematical problem-solving ability of the experimental class is better than the control class.


2020 ◽  
Vol 4 (2) ◽  
pp. 155
Author(s):  
Khaerul Anam ◽  
Raden Sudarwo ◽  
Gunawan Wiradharma

This study aims to find out: (1) the influence of the use of the Problem-Based Learning (PBL) model on the mathematical communication skill; (2) the influence of the use of the Problem-Based Learning (PBL) model on the mathematical problem-solving skill. This study was conducted on class VIII. The research design is pre-post quasi experimental design. Samples were selected using the cluster random sampling technique. The employed instrument in this study was an essay test. The obtained data were then analyzed using independent samples t-test and simple linear regression. The results indicated that (1) the average score of students' mathematical communication skills taught by problem-based learning models was higher than those taught by conventional methods; (2) the average score of students' mathematical problem-solving abilities taught by problem-based learning models is higher than students taught by conventional methods


2019 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Santoso Santoso ◽  
Himmatul Ulya ◽  
Ratri Rahayu

<p class="JRPMAbstractBodyEnglish">This study aims to examine the effectiveness of Problem Based Learning (PBL) assisted by QR code on students’ mathematical problem solving ability. This experimental research was carried out on students of the Elementary School Teacher Education Study ProgramUniversitas Muria Kudus in the mathematical concept course in the academic year of 2016/2017. The ability to solve mathematical problems is measured by tests. Data analysis techniques used include t-test and proportion test. The results of this study are: 1) the mathematical problem solving ability of students who learn through PBL assisted by QR code is better than the mathematical problem solving ability of students who learn through Direct Instruction learning; 2) the mathematical problem solving ability of students who are taught with PBL assisted by QR code have reached the minimum completeness criteria (MCC) and 3) the proportion of students taught with PBL assisted by QR code that has reached the MCC is better than the proportion of students studying through Direct Instruction learning that have met the minimum completeness criteria (MCC). Thus, the lecturer can develop PBL assisted by QR code to create interesting learning so that students are enthusiastic about the learning, which will have a positive effect on their mathematical problem solving ability.</p>


Author(s):  
Riki Andriatna

ABSTRAK Penelitian ini bertujuan untuk melihat pengaruh model pembelajaran berbasis masalah yang dikombinasikan dengan menulis matematika terhadap kemampuan pemecahan masalah dengan tinjauan kemampuan awal matematis siswa dengan kategori tinggi, sedang, dan rendah. Penelitian ini merupakan penelitian kuasi eksperimen dengan menggunakan satu kelompok eksperimen dengan perlakukan model pembelajarann berbasis masalah yang dikombinasikan dengan menulis matematika dan satu kelompok kontrol yang hanya diberikan perlakukan model pembelajaran berbasis masalah. Metode pengumpulan data terdiri dari tes kemampuan pemecahan masalah matematis. Teknik analisis data menggunakan analisis variansi dua jalan sel tidak sama. Hasil penelitian menunjukkan bahwa kemampuan pemecahan masalah siswa yang menggunakan model pembelajaran berbasis masalah yang dikombinasikan dengan menulis matematika lebih baik daripada kemampuan pemecahan masalah siswa yang hanya menggunakan model pembelajaran berbasis masalah secara umum maupun berdasarkan kategori kemampuan awal matematis. Ditinjau dari kategori kemampuan awal matematis, siswa kategori tinggi dan sedang menunjukkan tidak adanya perbedaan kemampuan pemecahan masalah yang signifikan, sedangkan kemampuan pemecahan masalah siswa kategori tinggi dan sedang lebih baik jika dibandingkan dengan kemampuan pemecahan masalah siswa kategori rendah. Kata kunci: pembelajaran berbasis masalah, menulis matematika, kemampuan pemecahan masalah, kemampuan awal matematis.   ABSTRACT This study aims to look at the effect of problem-based learning models combined with mathematical writing on problem solving abilities with a review of students' mathematical early capabilities in high, medium, and low categories. This research is a quasi-experimental study using one experimental group with the treatment of problem-based learning models combined with writing mathematics and a control group that is only given the treatment of problem-based learning models. Data collection methods consist of tests of mathematical problem solving abilities. Data analysis techniques using two path analysis of variance are not the sam cell. The results showed that the problem-solving ability of students who use problem-based learning models combined with writing mathematics is better than the problem-solving abilities of students who only use problem-based learning models in general or by the category of mathematical early ability. Judging from the early mathematical ability category, high and medium category students showed no significant difference in problem solving abilities while the problem solving ability of high and medium category students was better when compared to the problem solving ability of low category students. Keywords: problem based learning, writing mathematics, problem solving ability, mathematics early ability.


Author(s):  
Nuralam Nuralam ◽  
Muhammad Yani

The emphasis of mathematics learning, especially students' communication skills, needs to be considered from gender equality in solving mathematical problems. This study aims to describe: 1) the potential mathematical communication skills of students based on gender; 2) gender equality in communicating mathematical problem solving; and 3) the suitability of the form of the model or the applied form to develop students' mathematical communication skills based on gender at school. This research is a descriptive qualitative research conducted on all junior high school students in Langsa with a purposive sampling technique of 283 students. The data were collected through mathematical communication skills and questionnaire tests which were analyzed descriptively using the concept of Miles and Huberman. The results showed that: 1) mathematical communication skills of female students were better than male students in solving mathematical problems; 2) mathematical communication skills of male students are better in suburban schools and female students are better in downtown schools; and 3) learning implementation plans are still limited in emphasizing mathematical communication skills and learning tends to be cooperative and individual. It is recommended that learning plans refer to developing mathematical communication skills that pay attention to students' gender equality in order to optimize mathematical problem solving.


2021 ◽  
Vol 5 (2) ◽  
pp. 325
Author(s):  
Farida Farida ◽  
Kartini Kartini ◽  
Sehatta Saragih

The student learning activities do not support developing mathematical problem solving abilities. One of the factors is the learning tools used have not provided the opportunity for students to hone their mathematical problem solving skills. This study aims to produce a valid and practical semester VIII class SMP mathematics learning device for use by using the Problem Based Learning Model with a scientific approach to the SPLDV material. This type of research is a development research with the ADDIE development model which includes the following steps: (1) analysis, (2) design, (3) development, (4) implementation, (5) evaluation. Data were collected through observation, interviews, and student response questionnaires. The subjects of this study were students of class VIII MTS GUPPI Bandar Sungai. Data analysis techniques used qualitative and quantitative statistics. Based on the results of data analysis, information was obtained that the learning device met the valid and practical criteria. The results of the validity of the learning tools in the form of a syllabus with a percentage of 82.99%, RPP 85.75% and LKPD of 83.23% fulfilled the validity level, namely valid. The results of the practicality of the learning tools seen from the student response questionnaire were 92%, these results met the practicality level, which was very practical, while in terms of the teacher's observation sheet it fulfilled the practicality level of 87.78% fulfilling the very practical level.


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