Groups Perform Better Than The Best Individuals at Solving Complex Problems: Study shows that the collective efforts of groups may be useful in boosting problem-solving skills

2006 ◽  
2018 ◽  
Vol 1 (3) ◽  
pp. 312 ◽  
Author(s):  
Rubaitun Rubaitun

This study aims to determine whether the improvement of students' mathematical problem solving skills that get the learning of Model-Eliciting Activities is better than students who get regular learning. Method in this research is experiment and research design pretest and postest in experiment and control class. The population in this study were all students of MTs Kota Cimahi. School samples were taken at random, and obtained by MTs Negeri Kota Cimahi. Then the sample is selected two class VIII at random class. The experimental class uses Model-Eliciting Activities, while the control class uses ordinary learning. The hypothesis in this research is the improvement of student solving abilities of MTs students in Cimahi whose learning using Model-Eliciting Activities is better than using ordinary learning. Research data obtained through the instrument of posttest mathematical problem solving ability. The posttest data is processed by normality test, homogeneity test, and two average difference test using SPSS (Statistical Product and Service Solution) software version 16.0 for Windows. The results showed that the improvement of problem solving ability of MTs students in Cimahi whose learning using Model-Eliciting Activities was better than those using ordinary learning.


2018 ◽  
Vol 1 (October) ◽  
pp. 83-87
Author(s):  
Adi Ihsan Imami

One alternative model of learning that is expected to improve problem-solving skills is the Problem Based Learning model. This research aims to examine the problem-solving abilities of junior high school students. This study is classified as Quasi Experiments that was conducted at SMP Nurul Huda in Karawang. This research was an experimental design with 80 seventh grade student as a sample, it is divided into two different classes as a Problem Based Learning class and conventional learning class. The two classes were given pretest and posttest to determine students' problem-solving abilities. The results showed that problem solving abilities students who obtained learning with Problem Based Learning were better than students who received conventional learning. The success of students in learning mathematics with Problem Based Learning and problem-solving problems shows good results.   Salah satu alternatif model dan pendekatan pembelajaran yang diperkirakan dapat meningkatkan kemampuan tersebut adalah model Pembelajaran Berbasis Masalah. Penelitian ini bertujuan untuk menelaah kemampuan pemecahan masalah dan minat belajar siswa SMP. Penelitian ini termasuk Kuasi Eksperimen yang dilakukan pada salah satu SMP di kota Karawang, Penelitian ini adalah suatu eksperimen berdisain  dengan sampel 80 siswa kelas VII pada dua kelas yang berbeda sebagai kelas Pembelajaran Berbasis Masalah dan kelas pembelajaran konvensional. Kedua kelas yang diteliti diberikan pretes dan postes untuk mengetahui kemampuan pemecahan masalah dan minat belajar siswa.  Hasil penelitian menunjukan bahwa kemampuan  pemecahan masalah dan minat belajar siswa yang memperoleh pembelajaran dengan Pembelajaran Berbasis Masalah lebih baik dari pada siswa yang memperoleh pembelajaran konvensional. Keberhasilan siswa terhadap pelajaran matematika dengan Pembelajaran Berbasis Masalah serta terhadap soal-soal pemecahan masalah menunjukkan hasil yang baik.  


2021 ◽  
Vol 10 (4) ◽  
pp. 1625-1638
Author(s):  
Riyadi*, Triana ◽  
Triana Jamilatus ◽  
Puput Nikmaturrohmah

<p style="text-align: justify;">Problem-solving is considered one of the thinking skills that must be possessed in 21<sup>st</sup>-century education because problem-solving skills are required to solve all problems that arise. The problem-solving stages that can be used are Polya's four steps, namely, understanding the problem, devising a plan, carrying out the plan, and looking back. Problem-solving skills are essential for solving word problems. Word problems based on arithmetic operations are divided into three types: one-step, two-step, and multistep. This qualitative research aimed to see problem-solving skills viewed from the type of word questions and elementary school students’ third, fourth, and fifth grades. A purposive sampling technique with 22 third-grade students, 28 fourth-grade students, and 21 fifth-grade students was used. The data were collected using documentation, testing, and interview methods. The findings of the study showed that fourth-grade students’ problem-solving skills are better than those of third-grade students, and the problem-solving skills of fifth-grade students are better than those of fourth-grade students. The percentage of Polya's steps always decreases because not all students master problem-solving. Based on the types of questions, the percentage of the one-step word problem is better than that of the two-step while the percentage of the two-step word problems is higher than that of the multistep.</p>


2021 ◽  
Vol 13 (2) ◽  
pp. 707-717
Author(s):  
Hastri Rosiyanti ◽  
Dyah Ayu Ratnaningsih ◽  
Herwina Bahar ◽  
Is wan ◽  
Fai sal

This research is motivated by the students 'mathematical problem solving ability is still low, because mathematics learning in the classroom is not built to hone problem solving skills and the student worksheets used do not help students in honing students' mathematical problem solving skills, so the writer applies Polya's learning strategy with the help of problem solving sheet on social arithmetic material. This study aims to describe the steps of implementing Polya's learning strategy with the help of problem solving sheets in solving mathematical problems in social arithmetic material and to test mathematical problem solving skills by applying Polya's learning strategies with the help of problem solving sheets is it better than not implementing learning strategies Polya. This research was conducted using a quasi experimental method, with a population of all students of class VII Junior High School 3 Cisauk, Indonesia. The sample was selected using purposive sampling technique, namely students of class VII-6 and grade VII-7. Collecting data on students' mathematical problem-solving abilities using the final test (posttest). The results showed that Polya's learning strategy with the help of problem solving sheets on social arithmetic material was implemented properly and in accordance with Polya's steps. Based on the statistical test, it shows that the mathematical problem solving ability of students whose learning applies Polya's learning strategy with the help of problem-solving sheets is better than students whose learning does not apply Polya's learning strategy on class VII social arithmetic material at SMP Negeri 3 Cisauk, Indonesia.


Pythagoras ◽  
2012 ◽  
Vol 33 (1) ◽  
Author(s):  
Percy Sepeng ◽  
Paul Webb

This study explored whether discussion as a teaching strategy in mathematics classrooms could have positive gains in improving learners’ problem-solving performance, as well as their ability to make sense of real wor(l)d problems. This article discusses the partial findings of a bigger study that used a pre-test intervention or post-test mixed-method design and utilised both quantitative and qualitative data. Analysis of the data generated from both pre-tests and post-tests suggests that the intervention strategy significantly improved the experimental group’s problem-solving skills and sense-making performance. The statistical results illustrate that the experimental group performed significantly better than the comparison group in the post-test. The main finding of this study is that in classrooms of experimental schools in which discussion technique was successfully implemented, there was a statistically significant improvement in the learners’ competence in solving word problems.


2018 ◽  
Vol 1 (6) ◽  
pp. 1055
Author(s):  
Elza Efriyani Nursyifaa ◽  
Eka Senjayawati

The purpose of this research is to assess whether the improvement of students' mathematical problem solving skills using Problem Posing approach is better than those using ordinary learning. The population in this research is MTs Nurul Falah Cimahi. This research instrument in the form of a test of mathematical problem solving skills of five items. This research data is processed using software SPSS Version 22. Data analysis used is test of normality and test of two difference of mean. The result of this research stated that the achievement and improvement of problem solving skills of MTs students using Problem Posing approach is better than the normal learning, and the implementation using Problem Posing approach has been run in accordance with the learning procedure found and the difficulties experienced by students in solving the problem of solving skills mathematical problems are present in indicators of understanding problems, planning problems, implementing problem-solving plans, and re-examination.


Author(s):  
Jusep Saputra ◽  
Chandra Aditya

Ability Problem solving of learners is needed in understanding the economy in order to support student learning achievement. But the problem-solving ability of learners was still low. This is because teachers rarely train the problem-solving skills of learners during the learning process. The purpose of this research is to analyze the implementation of PBI (Problem Based Introduction) model and how much influence of PBI (Problem Based Introduction) model to problem-solving ability. The research method is True Experimental Design (real experiment) The population in this research are all students SMA Negeri 27 Bandung. As for the sample of the research is the students of class X SMA Negeri 27 Bandung as much as two classes are randomly selected by class Instruments used in the research in the form of Multiple Choice type test questions problem-solving problem learners and a questionnaire scale using a Likert Scale model The data analysis is done using t-test, based on postes obtained data of independent samples test with sig value (2-tailed) 0.12 Based on the result of the calculation, the writer concludes that the problem-solving ability of learners who get the model learning problem-based Introduction (PBI) is better than the problem-solving ability of learners who get expository exposure. Therefore, Problem Based Introduction (PBI) model can be used as an alternative for teachers in implementing their learning to create an active, effective and enjoyable learning atmosphere.


Author(s):  
Nuranita Adiasstuty

ABSTRACT The research aims to develop a learning devices  on Brain Based Learning (BBL), to enhance the problem solving abilities. This research is a development by using models Plomp, which consists of the initial investigation phase, design phase, construction phase of realization or phase test, evaluation, and revision, and implementation phase. The study was conducted in vocational Islamic Centre Cirebon on three sample classes. Variables include the study of learning, motivation, skills, processes, teacher and student response, and problem solving skills. Data collection techniques (in a row) using validation sheets, tests, questionnaires, observation, and TKPM sheet. The results showed the average value of the syllabus, lesson plans, student books, LKS row in the range of 1-5 is 4.55; 4.32, 4.45 and 4.40 so that the study considered valid. Positive response shown by the students and teachers towards learning, which indicate the practical learning. Increase problem solving ability. motivation and skills of the students, the effect of 81.5% of the students' problem-solving abilities. The average of the results of the test problem solving skills 77.56 KKM exceed 70, so that the average problem-solving ability to learn to use Brain Based Learning is better than average ability to use problem solving methods ekspository. It is concluded that the study is valid, practical, and effective. Keywords: effective, Brain Based Learning, problem solving abilities


Author(s):  
Leandro Pereira ◽  
Ricardo Santos ◽  
Mariana Sempiterno ◽  
Renato Lopes da Costa ◽  
Álvaro Dias ◽  
...  

Problem solving skills are increasingly important to be able to tackle the complex problems encountered in the business world. Nowadays is increasingly important to achieve sustainable development, focusing not only on economic profit but also on creating social value. It is widely agreed that the principles of scientific management can lead to more effective solutions for complex problems. Problems have to be looked at objectively, with methodology and intellectual integrity and modesty. Several techniques have been developed to help analyze the causes of the problem or formulate solutions. Although these business research techniques are important tools, they are presented as isolated measures. Pereira Problem Solving methodology presented provides guide to address business and management problems. It is an integrative and easy-to-use instrument that helps organizations adopt scientific management practices and will enhance the efficiency of the solutions encountered.


2019 ◽  
Vol 3 (2) ◽  
pp. 362-370
Author(s):  
Rilla Gina Gunawan ◽  
Aan Putra

The aim of this research is finding students' mathematical problem-solving skills based on high, medium and low initial knowledge. This research is a quasi-experimental study. The research sample used students in VIIIA and students in VIIIB SMPN 1 Kerinci that selected using random sampling techniques. The research data were processed using the t-test and the Mann Whitney test to comparing students' problem-solving skills that using active learning strategy sorting cards and problem-solving skills of students using ordinary learning. The result of data analysis showed that the mathematical problem-solving skill of students with high, medium and low initial knowledge was better than the mathematical problem-solving skill of students with the same initial knowledge that used ordinary learning. Penelitian ini bertujuan untuk mengetahui perbandingan kemampuan pemecahan masalah matematika siswa berdasarkan pengetahuan awal tinggi, sedang dan rendah. Penelitian ini merupakan penelitian eksperimental semu. Sampel penelitian yang digunakan adalah siswa di VIIIA dan siswa di VIIIB SMPN 1 Kerinci yang dipilih menggunakan teknik random sampling. Data hasil penelitian diolah menggunakan uji t dan uji Mann Whitney dengan tujuan membandingkan kemampuan pemecahan masalah siswa yang menggunakan strategi belajar aktif sortir kartu dan kemampuan pemecahan masalah siswa yang menggunakan pembelajaran biasa. Hasil penelitian menunjukkan bahwa kemampuan pemecahan masalah matematika siswa dengan pengetahuan awal tinggi, sedang dan rendah lebih baik daripada kemampuan pemecahan masalah matematika siswa dengan kemampuan awal yang sama yang menggunakan pembelajaran biasa.


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