scholarly journals Characterization of Data Analysis in the Physics Laboratory Among Pre-service Physics Teachers

2019 ◽  
Vol 4 (2) ◽  
pp. 13
Author(s):  
Ida Kukliansky
Keyword(s):  
Data Analysis ◽  
Laboratory Data ◽  
Introductory Physics ◽  
Knowledge Level ◽  
Physics Teachers ◽  
Physics Laboratory ◽  
Laboratory Courses ◽  
Analysis Instrument ◽  
Efficient Learning

Establishing the connection between the scientific experiment and theory may pose quite a challenge for learners. Analyzing and interpreting data, they collect in the experiments, helps to bridge the gap between the experiment's results and the theoretical world. The present research examines the barriers pre-service physics teachers confront with when dealing with data analysis tasks in the introductory physics laboratory. Identifying pre-service physics teachers' misconceptions is very important because the future teachers can transfer them to their students. The novelty of this research is not only in identifying the physics teacher's trainee's misconceptions analyzing data in the introductory physics laboratory, but also in explaining the reasons for them. 25 pre-service physics teachers who had undergone several laboratory courses participated in this study. For examining their knowledge level and identifying their difficulties in data analysis, the Laboratory Data Analysis Instrument (LDAI) was used. The results revealed that the participants evidenced a sixty-nine percent overall average of correct answers. The various misconceptions the pre-service physics teachers encountered in each of the instrument objectives are identified and discussed. Dealing with multiple representations and the use of intuitive rules can explain some of the difficulties. The identification of the data analysis difficulties can be employed by educators attempting to construct more efficient learning environments.

Developing of an instrument for assessing students’ data analysis skills in the undergraduate physics laboratory

2016 ◽  
Vol 94 (11) ◽  
pp. 1205-1215 ◽  
Author(s):  
Haim Eshach ◽  
Ida Kukliansky
Keyword(s):  
Data Analysis ◽  
Laboratory Data ◽  
Introductory Physics ◽  
First Year ◽  
First Year Students ◽  
Student Centered ◽  
Physics Laboratory ◽  
Laboratory Report ◽  
Analysis Instrument ◽  
Physics Laboratories

This paper describes the development and field test of the Laboratory Data Analysis Instrument (LDAI), aimed at diagnosing first-year students’ understanding of data analysis procedures. The design of this student-centered instrument is based on difficulties related to students’ data analysis skills required in an introductory physics laboratory. Difficulties were determined from previous literature, observations in laboratory classes, and interviews with students. The LDAI is single-context based, consisting of 30 multiple-choice and true/false questions embedded in a real laboratory report from a real laboratory. It was validated by seven experts: three physics professors, one science education lecturer, and three experienced laboratory instructors. Administration to 77 participants resulted in a Cronbach’s alpha of 0.702. The LDAI is a promising step toward having a valid and reliable diagnostic instrument that can be used by laboratory instructors in undergraduate physics laboratories.

Characterization of the chemical composition (mineral, lead and centesimal) in pine nut (Araucaria angustifolia (Bertol.) Kuntze) using exploratory data analysis

2021 ◽  
pp. 130672
Author(s):  
Emmanuelle Ferreira Requião Silva ◽  
Bruna Rosa da Silva Santos ◽  
Lucas Almir Cavalcante Minho ◽  
Geovani Cardoso Brandão ◽  
Márcio de Jesus Silva ◽  
...  
Keyword(s):  
Data Analysis ◽  
Chemical Composition ◽  
Exploratory Data Analysis ◽  
Araucaria Angustifolia ◽  
Pine Nut ◽  
Exploratory Data

scholarly journals A STUDY ON PRE-SERVICE PHYSICS TEACHERS’ CONCEPTUALIZATION ON ELEMENTARY QUANTUM MECHANICS

2017 ◽  
Vol 22 (2) ◽  
pp. 120
Author(s):  
Glauco Cohen Ferreira Pantoja
Keyword(s):  
Quantum Mechanics ◽  
Content Analysis ◽  
Data Analysis ◽  
Physical System ◽  
Quantum Physics ◽  
Meaningful Learning ◽  
Physics Teachers ◽  
Conceptual Mapping ◽  
Learning Patterns ◽  
Similarities And Differences

In this work, we present the results of a research in which we aimed to evidence obstacles and advances in pre-service teachers’ conceptualization on a subject involving elementary Quantum Mechanics. We based our analysis on the theories due to David Ausubel and Gèrard Vergnaud to study Meaningful Learning patterns, both in predicative and operatory form of knowledge, of six students involved in a didactical intervention composed of six classes, in which we emphasized both similarities and differences between Classical and Quantum Physics. With this intervention, we intended to teach the concepts of Physical System, Dynamical Variables, State of a Physical System and Time Evolution. We guided our data analysis by the methodology of content analysis (Bardin, 2008) and it turned possible to map Meaningful Learning patterns involving the four concepts to which were associated a set of essential features (in the predicative stage) and a set of theorems-in-action (in the operatory stage) relating the aim-concepts in problem-solving or conceptual mapping.

scholarly journals The Effect of the Use of Canva Application Learning Media on the Creativity of Students in Language Studio Extracurricular Activities at SMPN 1 Tanjung Emas

2021 ◽  
Vol 9 (4) ◽  
pp. 506
Author(s):  
Deni Putri Sartika ◽  
Vevi Sunarti
Keyword(s):  
Data Analysis ◽  
Data Processing ◽  
Experimental Method ◽  
Extracurricular Activities ◽  
School Principals ◽  
Paired Sample ◽  
Significant Difference ◽  
Quasi Experimental ◽  
Using Data ◽  
Efficient Learning

This research is motivated by the low creativity of students in language studio extracurricular activities at SMPN 1 Tanjung Emas. This condition is thought to be due to factors that influence the low creativity of students, one of the factors that is thought to greatly influence is the use of learning media that is less effective and efficient. This study aims to see the creativity of students through the use of Canva application learning media in language studio extracurricular activities at SMPN 1 Tanjung Emas. This type of research is using a quantitative approach to the quasi-experimental method (Quasi Experiment). The population in this study were students in the language studio extracurricular activities at SMPN 1 Tanjung Emas as many as 25 students, all of whom became the research sample. By using data analysis using the test formula paired sample t-test. From the data processing, it can be concluded that there is a significant difference between the creativity of students before being given an action (pretest) and after being given an action (posttest) using the Canva application learning media in the language studio extracurricular activities at SMPN 1 Tanjung Emas. Suggestions and results of this research are for educators to be able to further increase the creativity of students in using the Canva application learning media and for school principals at SMPN 1 Tanjung Emas as leaders at the school so that they can further increase the availability of facilities and infrastructure, especially effective and efficient learning media. as well as to support the creativity of students

scholarly journals Modelling of Risk Factors Associated with Foodborne Disease among School-Aged Children in Medan, Indonesia

2019 ◽  
Vol 7 (19) ◽  
pp. 3302-3306
Author(s):  
Nenni Dwi Aprianti Lubis ◽  
Sri Amelia ◽  
Nurfida Khairina Arrasyid ◽  
Muhammad Fakhrur Rozi
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Data Analysis ◽  
Hand Washing ◽  
World Population ◽  
Foodborne Disease ◽  
Knowledge Level ◽  
Food Handlers ◽  
Factors Associated ◽  
School Aged Children

BACKGROUND: Foodborne disease (FBD) contributes several outbreaks worsening health quality of world population. Many risk factors associated with FBD are related to its processing, preparation, and storage as well as handling practice. AIM: The study aimed to evaluate several proposed risk factors of foodborne disease existed among school-aged children and food-handlers in the school environment. MATERIAL AND METHODS: The descriptive cross-sectional study enrolled 124 students consisting of 64 females and 60 males in two different public schools, 064024 and 066656, Medan, Indonesia, between April and August 2018. The bacterial and parasitological examination was carried out in Microbiology and Parasitology Department. Food-handlers were assessed their appropriateness using standardised questionnaire merit to the guidelines enacted by the Ministry of Health, Indonesia (Kepmenkes RI No.942 / Menkes / SK / VII / 2003 adapted from WHO guidelines) entitled food-handlers sanitation-hygiene requirement guidelines. Data analysis was conducted using logistic regression. RESULTS: The study obtained that there were no food-handlers performed basic principles rules producing high-risk environment and posing a threat to children. Suspected-FBD also found in 55 or 44.4% students, and it was significantly related to several risk factors such as nail hygiene, knowledge level, nail-trimming behaviour, and hand-washing behaviour among students. Data analysis revealed modeling risk factor, Y = 23.440 + 2.003 (Nail hygiene) + 1.294 (Knowledge level) + 5.025 (Nail trimming behavior) + 7.007 (Hand-washing behavior) from logistic regression equation. CONCLUSION: Poor hygiene and sanitation of food-handlers and children per se provide a supportive environment in producing FBDs.

scholarly journals The Understanding of Pre-Service Physics Teachers on Electric Circuit Concept

2018 ◽  
Vol 4 (2) ◽  
pp. 125-130
Author(s):  
Anita Anita ◽  
Sy. Lukman Hakim Assagaf ◽  
Boisandi Boisandi
Keyword(s):  
Data Analysis ◽  
Electric Circuit ◽  
Fourth Grade ◽  
Primary Data ◽  
Electrical Circuits ◽  
Physics Teachers ◽  
Average Percentage ◽  
Parallel Circuits ◽  
Fourth Grade Students ◽  
Descriptive Method

The purpose of this research was to find out the descriptive of pre-service physics teachers understanding of the concept of electrical circuits, especially in the characteristic of series circuits and parallel circuits. The method used in this research was a descriptive method. The sample of this research was the fourth-grade students who took Basic Electronics course. The primary data of this research collected from the students’ test consisted of 12 multiple choices. Data analysis concluded that the student’s understanding of the concept of the electric circuit was low, with an average percentage of total indicators of 84.4%.

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