scholarly journals Preservice Physics Teachers’ Development of Physics Identities: the Role of Multiple Representations

2021 ◽  
Author(s):  
Nuril Munfaridah ◽  
Lucy Avraamidou ◽  
Martin Goedhart
Keyword(s):  
Instructional Practices ◽  
Physics Education ◽  
Multiple Representations ◽  
Instructional Approach ◽  
Multiple Representation ◽  
Physics Teachers ◽  
Physics Courses ◽  
Before And After ◽  
Post Test ◽  
Based Instruction

AbstractIdentity-based research in physics education has been receiving increased attention in the past few years given the potential of identity in producing novel insights into the ways’ students engage in physics. In this study, we examined the development of preservice physics teachers’ physics identity through a specific instructional practice: a specially designed course incorporating the use of the multiple representations. Although specific programs and instructional practices have been found to influence the development of physics identity, there is no clear evidence about the kinds of instructional practices that might support its development. To examine the influence of multiple representations on each component of physics identity, we designed and implemented a physics course that used a multiple representation (MR)-based instructional approach with a group of 61 preservice physics teachers at a public university in Indonesia. Data were collected with a pre- and post-questionnaire on physics identity, a conceptual understanding test, and a post-test that examined differences between identity components before and after the course, conceptual understandings, as well as the participants’ views about the use of the MR-based instructional approach. The findings revealed a significant improvement of two components of physics identity, namely, competence and interest, and point to the potential of MR-based instruction in physics courses.

scholarly journals MEASURING STUDENTS’ PROBLEM-SOLVING SKILLS ON DIRECT CURRENT CIRCUITS WITH MULTIPLE REPRESENTATIONS

2020 ◽  
Vol 8 (3) ◽  
pp. 725-736
Author(s):  
Maria Dewati ◽  
A. Suparmi ◽  
Widha Sunarno ◽  
Sukarmin ◽  
C. Cari
Keyword(s):  
Problem Solving ◽  
Physics Education ◽  
Multiple Choice ◽  
Multiple Representations ◽  
Assessment Instruments ◽  
Multiple Choice Questions ◽  
Multiple Representation ◽  
Problem Solving Skills ◽  
Electrical Circuits ◽  
Physics Problems

Purpose of study: This study aims to measure the level of students' problem-solving skills, using assessment instruments in the form of multiple-choice tests based on the multiple representation approach on DC electrical circuits. Methodology: This research is a quantitative descriptive involving 46 students of physics education. Students are asked to solve the problem of DC electrical circuits on 12 multiple choice questions with open reasons, involving verbal, mathematical, and picture representations. Data were analyzed by determining means and standard deviations. Main findings: The results of the study showed that there were 3 levels of students' problem-solving skills, namely 7 (15%) students in the high category, 22 (48%) students in the medium category and 17 (37%) students in the low category. Applications of this study: The implication of this research is to continuously develop assessment instruments based on multiple representations in the form of various types of tests, to help students improve their conceptual understanding, so students can solve physics problems correctly. The novelty of this study: Researchers explain the right way to solve physics problems, 1) students are trained to focus on identifying problems, 2) students are accustomed to planning solutions using a clear approach, to build an understanding of concepts, 3) students are directed to solve problems accordingly with understanding the concepts they have built.

scholarly journals EFFECTS OF MICROTEACHING MULTIPLE-REPRESENTATION PHYSICS LESSON STUDY ON PRE-SERVICE TEACHERS’ CRITICAL THINKING

2019 ◽  
Vol 18 (5) ◽  
pp. 692-707
Author(s):  
Billy A. Danday ◽  
Sheryl Lyn C. Monterola
Keyword(s):  
Critical Thinking ◽  
Physics Education ◽  
Lesson Study ◽  
Control Group ◽  
Multiple Sources ◽  
Multiple Representation ◽  
Beneficial Effects ◽  
Post Test ◽  
Quasi Experimental ◽  
Field Notes

A research on the effects of the microteaching Multiple-Representation Lesson Study (MRLS) on pre-service Physics teachers’ critical thinking was conducted using a pre-test-post-test quasi-experimental design. Eighteen fourth year Bachelor of Secondary Education-Physical Science majors participated in the research. The experimental group employed the microteaching MRLS while the control group implemented the Traditional Instructional Planning Approach (TIPA). Data were gathered from multiple sources such as researcher-made written tests, interviews, diaries, and field notes. The Mann-Whitney U test was utilized to ascertain statistical difference between the experimental and the control group. Results revealed significant differences in the scores between the two groups in the overall critical thinking and on its sub-domains. Findings indicate beneficial effects of the microteaching MRLS in developing pre-service teachers’ critical thinking. Keywords: critical thinking, lesson study, multiple representations, physics education, pre-service teachers, science education.

scholarly journals Effect of Physics Education Technology (PhET) Simulations: Evidence from STEM Students’ Performance

2020 ◽  
Vol 4 (3) ◽  
pp. 221
Author(s):  
Ananias N Yunzal, Jr. ◽  
Leomarich F Casinillo
Keyword(s):  
Physics Education ◽  
Education Technology ◽  
Control Group ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
Quasi Experimental ◽  
Experimental Type ◽  
Stem Students ◽  
Experimental Group

This study aimed to find out if Physics Education Technology (PhET) simulations can improve the performance of the Baybay City Senior High School STEM students on the selected topic in physics, that is, electrodynamics. This study utilized a quasi-experimental type where pre-test and post-test are multiple choice type of test and involved 72 STEM students. The grouping of the students was identified based on their sections, one section served as the control group and other is the experimental group. Experimental group is allowed to play the PhET simulation for an hour utilizing their vacant period every day, while the control is not exposed to any activity that intervene leading to the creation of formal construct of ideas in electrodynamics. Result showed that mean scores of the control and experimental groups does not imply a significant difference, despite of the interest shown by the students in playing the said simulation. Perhaps, students are more attracted to simulation in which they have gone through during their lectures. Furthermore, study shows that the performance of students before and after exposure to PhET simulation does not necessarily pose a big difference but indicates a slight improvement to their performances.

scholarly journals Comparing the Effects of L2-based with Code-switching-based Instruction on EFL Speaking Classes

2018 ◽  
Vol 9 (5) ◽  
pp. 946
Author(s):  
Dwi Ide Rahayu ◽  
Margana Margana
Keyword(s):  
Junior High School ◽  
Performance Test ◽  
Code Switching ◽  
Control Group ◽  
Central Java ◽  
Before And After ◽  
Post Test ◽  
Based Instruction ◽  
And Control ◽  
Experimental Group

This study is aimed at investigating the effects of L2-based and code-switching-based instruction in teaching Indonesian EFL primary level speaking classes by comparing and examining any potential correspondences between the uses of two different instructions with students’ improved speaking achievement. The participant of the study consisted of 70 seventh grade students at a Junior High School in Central Java Province, Indonesia. The samples were divided into two groups: experimental and control group. The former was taught using L2-based-instruction (L2BI) and the later was taught using the most common instruction used i.e. code-switching-based-instruction (CBI). A speaking performance test was developed by the researcher and administered before and after the experiment as pre-test and post-test. The data was analyzed using Analysis of Variance (ANOVA). The finding of the study revealed significant differences (0α 05) between the groups in support of the experimental group.

scholarly journals Implementation of Multiple-Representation Approaches Based on E-Module to Reduce Misconceptions of Prospective Physics Teachers During the Covid-19 Pandemic

2021 ◽  
Vol 7 (SpecialIssue) ◽  
pp. 158-167
Author(s):  
Ahmad Busyairi ◽  
Aris Doyan ◽  
Ahmad Harjono ◽  
Sutrio Sutrio ◽  
I Wayan Gunada
Keyword(s):  
Data Analysis ◽  
Quantitative Research ◽  
Descriptive Statistics ◽  
Test Results ◽  
Initial Number ◽  
Multiple Representation ◽  
Physics Teachers ◽  
Test Items ◽  
Before And After ◽  
The City

One of the problems that are often found in universities, especially in physics subjects, is the existence of misconceptions in students (learners). This study aims to determine the effectiveness of using the multiple-representation approach Based on E-Module in reducing the misconceptions of prospective physics teachers during the Covid-19 pandemic. The method used is quantitative research with a one-group pretest-posttest design. The sample consisted of 25 prospective physics teachers at one of the universities in the city of Mataram. The instrument used in this research is an open-ended three-tier test. A total of 10 test items with 30 questions were used in this study. The test was given twice, namely before and after treatment. The test results data were then analyzed using descriptive statistics to determine the decrease in the percentage of students who experienced misconceptions. Based on the results of data analysis shows that there is a decrease in the percentage of students who experience misconceptions by 31.89% from the initial number of 57.19 to 25.30%. This decrease in misconceptions was also followed by an increase in the percentage of students who understood the concept from 18.14 to 72.38%. Thus, it can be concluded that the application of the multiple representation approach assisted by E-Modules can be used as an alternative to reduce misconceptions and improve understanding of the concept of prospective physics teachers in the COVID-19 pandemic

scholarly journals PRACTICALITY AND EFFECTIVENESS OF THE IBMR TEACHING MODEL TO IMPROVE PHYSICS PROBLEM SOLVING SKILLS

2018 ◽  
Vol 17 (3) ◽  
pp. 381-394 ◽  
Author(s):  
Joko Siswanto ◽  
Endang Susantini ◽  
Budi Jatmiko
Keyword(s):  
Problem Solving ◽  
Experimental Design ◽  
Physics Education ◽  
Teaching Model ◽  
Study Program ◽  
Multiple Representation ◽  
Problem Solving Skills ◽  
Student Activities ◽  
Post Test ◽  
The One

The design of a teaching model must qualify to be applicable or practical and effective, therefore the research aimed to analyze the practicality and effectiveness of the IBMR (Investigation-Based Multiple Representation) teaching model in improving physics problems solving skills of bachelor programs’ students. The research was conducted by applying the one-group pre-test and post-test pre-experimental design to 186 students of study program of physics education, mathematics education, and mechanical engineering. The practicality of the model is assessed using an observation sheet and the effectiveness is determined based on pre-test and post-test physics problem solving skills. The collected data were analyzed using the calculation of average scores of the feasibility of each phase of the IBMR, t-test, and n-gain. The results show that each phase of the IBMR teaching model can be implemented by a lecturer with good and reliable categories, and relevant student activities, so that the IBMR teaching model is practicality qualified. It is also effective shown by: there are increasing score of physics problem solving skills at  = 5%, average n-gain with moderate categorized and not different or consistent for each pair of groups, and good-categorized students’ responses on each component of teaching. Keywords: IBMR teaching model, model practicality, model effectiveness, physics problem solving skills, bachelor programs’ students.

scholarly journals A Simple Approach to Teach Newton’s Third Law

2020 ◽  
Vol 9 (1) ◽  
pp. 79-90 ◽  
Author(s):  
J. Mansyur ◽  
S. N. Kaharu ◽  
J. Holdsworth
Keyword(s):  
Physics Education ◽  
Simple Approach ◽  
Choice Test ◽  
First Year ◽  
Physics Teachers ◽  
Post Test ◽  
Basic Physics ◽  
Quasi Experimental ◽  
Third Law ◽  
Five Phases

The results of previous researches indicated that there were problems with the mental model and students’ conceptual understanding of the action-reaction law (Newton’s third law, NTL). This research aimed to reveal the effect of a simple approach in teaching NTL. The research was conducted in the first-year of pre-service physics teachers at the Physics Education Department of Tadulako University. Research designs for three consecutive years were (1) one-group, pre-test, and post-test design, (2) a static group comparison (pre-test for the experimental group), and (3) a quasi-experimental. The approach used was an interactive demonstration that consisted of five phases, i.e: eliciting an intuitive argument, demonstrating a continuous force: pulling, demonstrating a continuous force: pushing, demonstrating impulsive force: collisions, and refining the concept with Elby’s pair. Data were collected using a multiple-choice test developed in previous research. The results of the data analyses showed that the approach could improve students’ understanding of the action-reaction law, supporting conceptual change by exhibiting N-gain in the moderate and high categories. The instructional design can be considered for implementation in learning in high schools, lecture on pre-service physics teachers and basic physics lecture, in general..

scholarly journals The Effectiveness of Using the Lexical Approach to Developing Ethiopian EFL Learners’ Vocabulary Competence

HOW ◽  
2021 ◽  
Vol 28 (1) ◽  
pp. 69-93
Author(s):  
Addisu Sewbihon-Getie
Keyword(s):  
Vocabulary Knowledge ◽  
Control Group ◽  
Instructional Approach ◽  
Efl Learners ◽  
Study Results ◽  
Post Test ◽  
Quasi Experimental ◽  
Based Instruction ◽  
Lexical Approach ◽  
Experimental Group

This study investigated the effects of teaching vocabulary through the lexical instructional approach in EFL intermediate level students. Ninety-five (95) students participated in a non-equivalent pre-test-post-test quasi-experimental design study. The participants were given vocabulary competence pre-test in order to check their homogeneity in terms of their vocabulary knowledge. Then, following the similitude of the results they scored, the participants were randomly assigned as experimental group and the control group. For sixteen (16) weeks, the experimental group was taught by providing students with chunks and/or collocates of words through using collocation dictionaries, concordance programs, chunk-for-chunk translation activities, and corpus-based activities etc. Whereas, the control group was taught the new words in isolation with conventional teaching techniques; for example, translation at single word level, synonyms, antonyms, and definitions. After the instructional intervention, both groups participated in a vocabulary competence post-test. The Statistical Package for Social Science (SPSS) software version 22 was employed to analyse the results. In this regard, an independent Samples T-test was run and the findings of the study showed that the experimental group outperformed the control group in the post-test which implies that teaching vocabulary with a lexically-based instruction can improve EFL learners’ vocabulary competence or knowledge. Furthermore, the study results suggest that the lexical instructional approach should be the focus of future experimental research.

Clinically Meaningful Change

Methodology ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 97-105
Author(s):  
Rodrigo Ferrer ◽  
Antonio Pardo
Keyword(s):  
Effect Size ◽  
False Negative ◽  
False Negative Rate ◽  
Point Of View ◽  
Skewed Distribution ◽  
Effect Sizes ◽  
False Negatives ◽  
Large Size ◽  
Before And After ◽  
Post Test

Abstract. In a recent paper, Ferrer and Pardo (2014) tested several distribution-based methods designed to assess when test scores obtained before and after an intervention reflect a statistically reliable change. However, we still do not know how these methods perform from the point of view of false negatives. For this purpose, we have simulated change scenarios (different effect sizes in a pre-post-test design) with distributions of different shapes and with different sample sizes. For each simulated scenario, we generated 1,000 samples. In each sample, we recorded the false-negative rate of the five distribution-based methods with the best performance from the point of view of the false positives. Our results have revealed unacceptable rates of false negatives even with effects of very large size, starting from 31.8% in an optimistic scenario (effect size of 2.0 and a normal distribution) to 99.9% in the worst scenario (effect size of 0.2 and a highly skewed distribution). Therefore, our results suggest that the widely used distribution-based methods must be applied with caution in a clinical context, because they need huge effect sizes to detect a true change. However, we made some considerations regarding the effect size and the cut-off points commonly used which allow us to be more precise in our estimates.

Perbedaan Pengetahuan Siswa Tentang Penyakit Hepatitis A Sebelum Dan Sesudah Penyuluhan Di MTsN 02 Bondowoso Tahun 2015

2017 ◽  
Vol 4 (2) ◽  
pp. 14
Author(s):  
Putri Megasari
Keyword(s):  
Hepatitis A ◽  
Hepatitis Virus ◽  
Sampling Technique ◽  
Mean Value ◽  
Test Design ◽  
The World ◽  
Before And After ◽  
Post Test ◽  
The Mean ◽  
Paired T Test

Hepatitis has become a health problem in the world. The hepatitis virus infected many people. According to the teacher of MTsN 02 Bondowoso more than 20 students have hepatitis A viral infection. The purpose of this research was to know the differences of students' knowledge about hepatitis A before and after counseling in MTsN 02 Bondowoso 2015. This study used pre-experimental (pre-post test design). This study used stratified random sampling technique, 127 students from 270 sample involved this research,and 143 students was excluded. We used questionnaires to collect data. The results showed that the mean value of the students 'knowledge about hepatitis A before counseling in MTsN 02 Bondowoso 2015 was 83.96 with the lowest value of 37.5 and the highest value was 100. The mean value of the students' knowledge about hepatitis A after counseling in MTsN 02 Bondowoso 2015 was 93.21 with the lowest value waf 62.5 and the highest value was 100. Paired t test showed that t (-9.07) > t table (1.98), the null hypothesis (H0) was rejected. There was a difference between students' knowledge about hepatitis A before and after counseling in MTsN 02 Bondowoso 2015. This study showed that routine counseling by healthcare provider was important to prevent hepatitis A infection.; Keywords: counseling, knowledge of students, hepatitis

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