scholarly journals Quando As Frações Não São Apenas Partes de Um Todo…!When fractions are not just parts of a whole…

2021 ◽  
Vol 23 (1) ◽  
pp. 683-712
Author(s):  
Sofia Isabel Graça ◽  
João Pedro Da Ponte ◽  
António Guerreiro
Keyword(s):  
Problem Solving ◽  
Data Collection ◽  
Rational Numbers ◽  
Teaching Experiment ◽  
Structured Interviews ◽  
Limited Knowledge ◽  
Grade 5 ◽  
Exploratory Approach ◽  
Before And After ◽  
Post Test

ResumoEste estudo tem como objetivo analisar os conhecimentos de alunos do 5.º ano relativos aos significados das frações antes e após uma experiência de ensino que segue uma abordagem exploratória com ênfase na resolução de problemas. Os participantes são alunos de uma turma do referido ano. Para a recolha de dados foram usados dois testes, inicial e final, complementados com a realização de entrevistas semiestruturadas individuais. Os dados indicam que, antes da experiência de ensino, os alunos tinham um conhecimento muito limitado dos significados das frações, nomeadamente como medida e como quociente. Demonstravam apenas algumas ideias associadas à relação parte-todo e ao operador, mas este último apenas ao nível procedimental. Após a experiência de ensino, estes alunos mostraram alguma flexibilidade com todos os significados, embora o significado de medida ainda constitua um desafio para um dos alunos participantes.Palavras-chave: Números racionais, Frações, Significados de frações, Aprendizagem, Abordagem exploratória.AbstractThis study aims to analyze grade 5 students’ knowledge regarding the meanings of fractions before and after a teaching experiment following an exploratory approach, with emphasis in problem solving. The participants are students from the same class. For data collection, two tests were used, pre-test and post-test, complemented with individual semi-structured interviews. The data indicate that, before the teaching experiment, the students had a very limited knowledge related to the meanings of fractions, in particular measure and quotient. They demonstrated only a few ideas associated with the part-whole relationship and operator, but this last meaning only at the procedural level. After the teaching experiment, these students showed some flexibility with all meanings of fractions, although the meaning of measure is still a challenge for one of them.Keywords: Rational numbers, Fractions, Meaning of fractions, Learning, Exploratory approach.ResumenEste estudio tiene como objetivo analizar el conocimiento de los estudiantes de quinto grado sobre el significado de las fracciones antes y después de una experiencia de enseñanza que sigue un enfoque exploratorio con énfasis en la resolución de problemas. Los participantes son estudiantes de la misma clase. Para la recopilación de datos, se utilizaron dos pruebas iniciales y finales, complementadas con entrevistas semiestructuradas individuales. Los datos indican que, antes de la experiencia de enseñanza, los estudiantes tenían un conocimiento muy limitado de los significados de las fracciones, en particular de medida y cociente. Demostraron sólo unas pocas ideas asociadas con la relación parte-todo y el operador, pero esto último significado sólo a nivel de procedimiento. Después de la experiencia de enseñanza, estos estudiantes mostraron cierta flexibilidad con todos los significados, aunque el significado de la medida todavía plantea un desafío para uno de los estudiantes participantes.Palabras clave: Números racionales, Fracciones, Significados, Aprendizaje, Enfoque exploratorio.

scholarly journals Problem-Solving Ability of Science Students in Optical Wave Courses

2017 ◽  
Vol 6 (2) ◽  
pp. 341 ◽  
Author(s):  
T. Nurita ◽  
P. W. Hastuti ◽  
D. A. P. Sari
Keyword(s):  
Problem Solving ◽  
Data Collection ◽  
Design Method ◽  
Test Design ◽  
Science Students ◽  
Optical Wave ◽  
Optical Waves ◽  
Before And After ◽  
Post Test ◽  
Quantitative Descriptive

<p>Optical wave courses at the Department of Science discuss waves and optics. The purpose of this study is to describe the problem-solving ability of students in optical wave courses. The method used is quantitative descriptive with one group pre-test post-test design. Method of data collection involves a test given to students before and after the student worksheet was provided in the course of optical waves. This study showed an increase in scores experienced by as many as 15 students. This shows that the problem-solving ability of students has increased.<br /><br /></p>

Melatih Kepemimpinan Perangkat Desa Kebonharjo Kulonprogo: Membangun Sikap Anti Korupsi

2018 ◽  
Vol 1 ◽  
pp. 107
Author(s):  
Adi Heryadi ◽  
Evianawati Evianawati
Keyword(s):  
Transformational Leadership ◽  
Data Collection ◽  
Paired Samples ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
Sample Test ◽  
Corruption Perception ◽  
Measuring Tool

This study aims to prove whether transformational leadership training is effective for building anti-corruption attitudes of villages in Kebonharjo village, subdistrict Samigaluh Kulonprogo. This research is an experimental research with one group pre and posttest design.Subject design is 17 people from village of 21 candidates registered. Measuring tool used in this research is the scale of anti-corruption perception made by the researcher referring to the 9 anti-corruption values with the value of reliability coefficient of 0.871. The module used as an intervention made by the researcher refers to the transformational leadership dimension (Bass, 1990). The data collected is analyzed by statistical analysis of different test Paired Sample Test. Initial data collection results obtained sign value of 0.770 which means> 0.05 or no significant difference between anti-corruption perception score between before and after training. After a period of less than 1 (one) month then conducted again the measurement of follow-up of the study subjects in the measurement again using the scale of anti-corruption perception. The results of the second data collection were analysed with Paired Samples Test and obtained the value of 0.623 sign meaning p> 0.05 or no significant difference between post test data with follow-up data so that the hypothesis of this study was rejected.

scholarly journals Corpus-aided Business English Collocation Pedagogy: An Empirical Study in Chinese EFL Learners

2017 ◽  
Vol 10 (9) ◽  
pp. 181
Author(s):  
Lidan Chen
Keyword(s):  
Empirical Study ◽  
English Learners ◽  
Active Role ◽  
Learner Autonomy ◽  
Teaching Experiment ◽  
Business English ◽  
Test Analysis ◽  
Reflective Journals ◽  
Before And After ◽  
Post Test

This study reports an empirical study of an explicit instruction of corpus-aided Business English collocations and verifies its effectiveness in improving learners’ collocation awareness and learner autonomy, as a result of which is significant improvement of learners’ collocation competence. An eight-week instruction in keywords’ collocations, with the help of AntConc and self-constructed Business English Pedagogical Corpus combined with COCA general corpus and Wikipedia corpus, was imparted to 23 undergraduate learners majoring in Business English in Guangdong University of Foreign Studies. They took the collocation competence pre-test and post-test before and after the teaching experiment which was phased into two themes and submitted learning reflective journals at the end of each theme instruction and answered a questionnaire at the final end. The data from the tests, reflective journals and questionnaire collaboratively suggest that given appropriate guidance EFL Business English learners can take a more active role in raising their collocation awareness and developing learner autonomy and thus improve their collocation competence significantly. The results from the test analysis also indicate that the corpus-aided Business English collocation pedagogy is proved to be more effective for intermediate and advanced level learners rather than lower level ones. The findings have pedagogical implications for EFL Business English instructors and learners.

scholarly journals Strategi Think Pair Share dan Jigsaw: Manakah yang Lebih Efektif untuk Kemampuan Pemecahan Masalah Siswa?

2020 ◽  
Vol 7 (2) ◽  
pp. 121-128
Author(s):  
Arief Cahyo Utomo ◽  
Zaenal Abidin ◽  
Henry Aditia Rigianti
Keyword(s):  
Elementary School ◽  
Data Analysis ◽  
Problem Solving ◽  
Data Collection ◽  
Elementary School Students ◽  
Learning Model ◽  
School Students ◽  
Test Technique ◽  
Normality Test ◽  
Post Test

This study aimed to find out the different of efectiveness of Think Pair Share (TPS) and Jigsaw learning model on problem solving ability of 6th grade students. This study compared which has a greater effect on problem solving ability of 6th grade students. This study was a quasy experiment. The subjects of this study were 6th grade elementary school students in Ngadirojo Kidul, Wonogiri, Indonesia. Data collection used were pretest and post test technique. Data analysis used was Anova with T-test where previously preceded by prerequisite test (homogenity test and normality test). The result of this study is there is difference between TPS learning model and Jigsaw learning model. TPS learning model has a greater influence in improving problem solving ability of 6th grade elementary school students.

STATION ROTATION MODEL WITH ICT INTEGRATION ENHANCES STUDENTS’ PROBLEM SOLVING SKILL IN PHYSICS

2021 ◽  
Vol 8 (4) ◽  
pp. 619-640
Author(s):  
Alibai Unsi ◽  
Alnoury Cauring ◽  
Amour Camua ◽  
Norma Dalgan
Keyword(s):  
Problem Solving ◽  
Control Group ◽  
Ict Integration ◽  
Innovation In Education ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
K 12 ◽  
Experimental Group ◽  
Rotation Model

Station rotation model has recently become a promising innovation in education in which learners lead to deeper learning and problem-solving development (Jones, 2018). The study determined the effectiveness of station rotation model with ICT integration to enhance the problem solving skill of ninth grade students of ARMM Regional Science High School during five weeks of intervention. The data of this study were obtained from the pre-test and post-test with open-ended questions from Control and Experimental Groups. These tests were administered before and after the intervention and scored using rubric. Moreover, attitude test was answered by the students to provide feedbacks on the use of station rotation model with ICT integration. Results revealed that there is no significant difference in the post-test performances under the Control Group (K-12 teaching instruction) and the Experimental Group (SRM with ICT Integration), t (25) =-1.324, p=.197. At the end of the study, experimental group under station rotation model with ICT integration does not significantly enhance students’ problem solving skill in Physics.

scholarly journals Micro:bit Robotics Course: Infusing Logical Reasoning and Problem-Solving Ability in Fifth Grade Students Through an Online Group Study System

2021 ◽  
Vol 22 (1) ◽  
pp. 21-40
Author(s):  
Po-Jen Cheng ◽  
Yuan-Hsun Liao ◽  
Pao-Ta Yu
Keyword(s):  
Problem Solving ◽  
Probabilistic Reasoning ◽  
Logical Reasoning ◽  
Remote Area ◽  
Fifth Grade Students ◽  
Digital World ◽  
Before And After ◽  
Post Test ◽  
And Mathematics ◽  
Online Group

With rising societal interest in the subject areas of science, technology, engineering, art and mathematics (STEAM), a micro:bit robotics course with an online group study (OGS) system was designed to foster student learning anytime and anywhere. OGS enables the development of a learning environment that combines real-world and digital-world resources, and can enhance the effectiveness of learning among students from a remote area. In this pre- and post-test experiment design, we studied 22 (8 males and 14 females) 5th grade students from a remote area of Taiwan. A t test performed before and after the robotics course showed a positive increase in students’ proportional reasoning, probabilistic reasoning, and ability to analyze a problem. Results also revealed a gender difference in the association between students’ logical reasoning and problem-solving ability.

scholarly journals Enhancing Creative Problem Solving in Postgraduate Courses of Education Management Using Project-Based Learning

2021 ◽  
Vol 10 (6) ◽  
pp. 11
Author(s):  
Pengfei Chen ◽  
Yuan-Cheng Chan
Keyword(s):  
Problem Solving ◽  
Project Based Learning ◽  
Control Group ◽  
Creative Problem Solving ◽  
Postgraduate Students ◽  
Education Management ◽  
Before And After ◽  
Post Test ◽  
Quasi Experimental ◽  
Creative Problem

The aim of this study is to enhance students’ creative problem-solving ability using a project-based learning approach. The study was based on a quasi-experimental design and the participants were 69 postgraduate students in the field of education management. There were 35 of the students assigned to the experimental group, and the remaining 34 to the control group. The experiment was conducted over 15 classes for 2 months. A creative problem-solving questionnaire was used as a pre-test and post-test before and after the experiment. The results showed that the students’ creative problem-solving ability had been effectively enhanced by the intervention of project-based learning, especially in terms of identifying problems, finding solutions and evaluating them.

scholarly journals Efektivitas Pelatihan Hardiness untuk Meningkatkan Sikap Tangguh dalam Menyelesaikan Masalah

2020 ◽  
Vol 12 (2) ◽  
pp. 65-80
Author(s):  
Joice Mailoa ◽  
Aulia Ramdani
Keyword(s):  
Problem Solving ◽  
Study Data ◽  
Rank Test ◽  
Brief Cope ◽  
Resilience Scale ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
Quasi Experimental ◽  
Signed Rank Test

Any changes in the system of an organization could be stressful. Having hardiness would be important to deal with a problem. This study aims to seek out the effectiveness of hardiness training in improving problemsolving. A quasi-experimental design with one group pretest-post test design was applied. There were sixteen employees of various organizational divisions enrolled in this study. Data were collected before and after the six-session of hardiness training using the Brief COPE scale and the Dispositional Resilience Scale (DRS-15) developed by Bertone. Results from the Wilcoxon signed-rank test showed that there was no significant difference in the attitude of the effectiveness of problem-solving among employees before and after training (p>0,05). However, there were differences in knowledge of understanding hardiness before and after training. (p=.002, p>0,05). It can be concluded that hardiness training could increase the knowledge about hardiness; but not the attitude toward problem-solving.

scholarly journals REMEDIASI KESALAHAN MENYELESAIKAN SOAL USAHA ENERGI MENGGUNAKAN STRATEGI SYSTEMATIC APPROACH TO PROBLEM SOLVING DI SMA

2020 ◽  
Vol 1 (1) ◽  
pp. 29
Author(s):  
Wulandari Wulandari ◽  
Stepanus Sahala Sitompul ◽  
Syukran Mursyid
Keyword(s):  
Problem Solving ◽  
Data Collection ◽  
Systematic Approach ◽  
Research Use ◽  
Intact Group ◽  
Experiment Method ◽  
Before And After ◽  
Work And Energy

The aim of this research is to find out the effectiveness of using Systematic Approach Strategy on remedy to reduce the total incorrect results on answering the test on the topic of work and energy on the students at SMA Negeri 1 Batu Ampar. The population in this research are 72 students. Technique of data collection in this research is intact group with 36 students as the sample. The research implements experiment method. The research use limited topic on the test consist of work and energy. Statistic test used in this research is Wilcoxon  with value  = -0.1631, if this results are compared with value  on taraf nyata  = 0.025, it resulted, with the value 0.1631 < 1,96. After analyze found that there are no significant differences on the total incorrect results on answering the test on the topic of work and energy by students at XI MIPA SMA Negeri 1 Batu Ampar before and after remedy. The Conclusion from the results found that the strategy can reduce the total incorrect results of the students answering the test on the topic of work and energy with effectiveness low at the average 11.18%.Keywords: Strategy, Systematic Approach to Problem Solving, Students’ Error, work and energy

scholarly journals Peningkatan Pengetahuan Orang Tua Siswa, Guru dan Siswa SD Tunas Harapan Islam Medan tentang Pencegahan Pandemi Covid-19

2020 ◽  
Vol 27 (4) ◽  
pp. 254-262
Author(s):  
Nevi Yanti ◽  
Fitri Yunita Batubara ◽  
Essie Octiara ◽  
Darmayanti Siregar
Keyword(s):  
Elementary School ◽  
Data Collection ◽  
World Health ◽  
P Value ◽  
Parents And Children ◽  
Before And After ◽  
Teachers And Students ◽  
Post Test ◽  
Level Of Knowledge ◽  
Health Organization

The new corona virus epidemic (Covid-19) was declared a global pandemic on March 11, 2020 by the World Health Organization (WHO). The Covid-19 mortality rate in Indonesia of 8.9% is the highest number in Southeast Asia. Knowledge of the prevention of the Covid-19 pandemic is very important to prevent the transmission of Covid-19. The purpose of this study was to determine the level of knowledge of parents, teachers, and students of Taman Harapan Islam Medan Elementary School about the prevention of the Covid-19 pandemic. This study used a pretest questionnaire for initial data collection, then counseling was carried out on the prevention of Covid-19 and for the final data collection, a post test questionnaire was used. The results of the Mann Whitney test showed that there were differences in the level of knowledge of parents and children about Covid-19 before and after counseling (P value 0.022) and there were differences in the level of knowledge of parents and children about Covid-19 after counseling (P value 0.002). So it can be concluded that there was an influence on the level of knowledge of parents and children about the spread of Covid-19 infection. Education about preventing the spread of Covid-19 to parents of students, teachers and students of the Taman Harapan Islam Medan Elementary School can provide an understanding of the importance of preventing the spread of Covid-19 and can be passed on to their families and the surrounding environment.

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