scholarly journals APPLICATION OF STEM-CP BASED MAGNETIC FIELD AND ELECTROMAGNETIC INDUCTION MODULE TO IMPROVE STUDENTS CREATIVE THINKING SKILLS AT VOCATIONAL HIGH SCHOOL

2020 ◽  
Vol 8 (11) ◽  
pp. 346-350
Author(s):  
Sutarto a ◽  
◽  
Marinda Resti Sari ◽  
Sudarti b ◽  
◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Induction ◽  
Creative Thinking ◽  
Thinking Skills ◽  
Vocational High School ◽  
Design Data ◽  
Engineering Mathematics ◽  
Before And After ◽  
The Magnetic Field ◽  
Better Than

Materials in physics learning at school are considered difficult to understand, especially in the concept of magnetic field and electromagnetic induction. Contextual issues are required to overcome this problem.STEM-Cp (science, technology, engineering, mathematics-contextual problem) is seen to help students understand the concept of magnetic field and electromagnetic induction through contextual issues. The purpose of this study was to determine the effect of using STEM-Cp based moduleon students creative thinking skill on magnetic field and electromagnetic induction material.The research design used in this study is one-group pretest-posttest design . Data obtained from the results of creative thinking tests conducted in the experimental class before and after learning. The results showed that the students creative thinking skills taught using magnetic field modules and electromagnetic induction based on STEM-Cp before and after learning improved. The effect of the application of the magnetic field module and electromagnetic induction based on STEM-Cp has an average increase of 80,3in the good category. This shows that the creative thinking skills of students learning with magnetic field modules and electromagetic induction are better than before being applied in learning.

Analysis of Student Critical and Creative Thinking (CCT) Skills on Chemistry: A Study of Gender Differences

2019 ◽  
Vol 9 (4) ◽  
pp. 43-52
Author(s):  
Ryzal Perdana ◽  
◽  
◽  
Keyword(s):  
Gender Differences ◽  
Creative Thinking ◽  
Thinking Skills ◽  
Female Students ◽  
Critical Thinking Skills ◽  
Male Students ◽  
Essay Question ◽  
Chemical Material ◽  
Better Than ◽  
Critical And Creative Thinking

Abstract Critical and creative thinking skills are an essential attribute for success in the 21st century. This study aimed to determine the students’ critical and creative thinking skills in the Islamic senior high schools of Surakarta City so that teachers can pay attention to the strength and weakness of each student based on gender differences. This study used descriptive qualitative analysis. The subject of this study amounted to 180 students consisting of 80 male and 100 female students. The measurement of critical-thinking skills used a 6-essay-question instrument of the chemical material of electrolyte and non-electrolyte solutions that measures the aspects based on Facione theory, namely: analysis, inference, explanation, interpretation, evaluation, and self-regulation. Then, to measure creative-thinking skills, a 4-essay-question test instrument of the chemical material that includes 4 aspects according to Torrance, fluency, flexibility, original and elaboration, was used. The results showed that the creative-thinking skills of male students are better than those of female students and the critical-thinking skills of female students are better than those of male students.

scholarly journals Diurnal variation effect in marine magnetometric surveys: clues from surveys in southeast Brazil

2021 ◽  
Vol 42 (3) ◽  
Author(s):  
Paula Possamai Sergipe ◽  
Yára Regina Marangoni ◽  
Roberto Paulo Zanon dos Santos ◽  
Denise Silva de Moura ◽  
Luigi Jovane
Keyword(s):  
Magnetic Field ◽  
Continental Shelf ◽  
Diurnal Variation ◽  
Brazilian Coast ◽  
Observatory Data ◽  
Before And After ◽  
Corrected Data ◽  
Well Correlation ◽  
The Magnetic Field ◽  
Magnetic Observatories

AbstractThe diurnal variation of the magnetic field cannot be predicted or modeled and for that reason, it is monitored during the magnetic surveys, usually by a stationary magnetometer. However, marine surveys have a practical issue with diurnal monitoring, owing to the distance between the survey, stationary magnetometers, and magnetic observatories. This work aims to verify the use of nearby magnetic observatories to estimate the diurnal variation correction in different marine surveys and evaluate its effectiveness. In this study, we selected surveys at the continental shelf near Santos city (Survey 1), continental slope next to the first survey location (Survey 2), continental shelf near Ubatuba city (Survey 3), and Mamanguá ria in the Paraty city (Survey 4), all southeast to the Brazilian coast. The crossing points were implemented to compare the magnetic field values at different times and days at the same measurement point, before and after the correction. Afterwards, we measure the Pearson’s Correlation of the raw data and the diurnal corrected data in all crossing points of each survey which showed an improvement after correction by the value approximating to 1, which indicates a very well correlation. The Ubatuba and Mamanguá surveys allowed comparing the observatory correction results with the base magnetometer results that were rather similar. Our analyses indicate a satisfactory diurnal correction using the observatory data and the crossing points approach, which can be used for every marine magnetometric survey worldwide placed near the coast (< 280 km) that do not have a stationary magnetometer available.

Magnetorheological fluid based on amorphous Fe-Si-B alloy magnetic particles

2021 ◽  
pp. 1045389X2110643
Author(s):  
Chuncheng Yang ◽  
Zhong Liu ◽  
Xiangyu Pei ◽  
Cuiling Jin ◽  
Mengchun Yu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Strength ◽  
Rheological Property ◽  
Magnetic Particles ◽  
Annealing Treatment ◽  
Magnetorheological Fluid ◽  
The Stability ◽  
The Magnetic Field ◽  
Amorphous Particle ◽  
Better Than

Magnetorheological fluids (MRFs) based on amorphous Fe-Si-B alloy magnetic particles were prepared. The influence of annealing treatment on stability and rheological property of MRFs was investigated. The saturation magnetization ( Ms) of amorphous Fe-Si-B particles after annealing at 550°C is 131.5 emu/g, which is higher than that of amorphous Fe-Si-B particles without annealing. Moreover, the stability of MRF with annealed amorphous Fe-Si-B particles is better than that of MRF without annealed amorphous Fe-Si-B particles. Stearic acid at 3 wt% was added to the MRF2 to enhance the fluid stability to greater than 90%. In addition, the rheological properties demonstrate that the prepared amorphous particle MRF shows relatively strong magnetic responsiveness, especially when the magnetic field strength reaches 365 kA/m. As the magnetic field intensified, the yield stress increased dramatically and followed the Herschel-Bulkley model.

scholarly journals The Effectiveness of SW (Student Worksheets) Based on STEM (Science, Technology, Engineering, Mathematics) to Train Students' Creative Thinking Skills

2021 ◽  
Vol 5 (1) ◽  
pp. 1-18
Author(s):  
Anugrah Agustina ◽  
Yuni Sri Rahayu ◽  
Yuliani Yuliani
Keyword(s):  
Research Method ◽  
Creative Thinking ◽  
Thinking Skills ◽  
Test Design ◽  
Learning Approaches ◽  
Research Subjects ◽  
Science Technology ◽  
Engineering Mathematics ◽  
Post Test ◽  
Basic Competency

Existing learning has not fully facilitated 4C (critical thinking, communication, collaboration, and creativity) skills and there are obstacles for students to encounter in studying biology, especially the material about plant tissue. It happens due to various limitations in achieving basic competency skills. One of the learning approaches that can be used to support 4C skills is the STEM approach which is supported by student worksheets (SW) to guide the learning process. The purpose of this study was to measure the effectiveness of STEM-based SW to train students' creative thinking skills. The research method used is descriptive quantitative and qualitative with one group pre-test and post-test design. The research subjects were 21 students of XI grades at SMAK St.Hendrikus. Data analysis of the N-Gain test of creative thinking skills obtained an average N-gain of 0.7 with a medium category. The N-Gain analysis of creative thinking skills using the T-Test with a sig. (2-tailed) value of 0.000 indicates that STEM-based worksheets are effective in training students' creative thinking skills.

scholarly journals Numerical simulation of induction heating thick-walled tubes

2018 ◽  
Vol 168 ◽  
pp. 02004
Author(s):  
Richard Lenhard ◽  
Milan Malcho ◽  
Katarína Kaduchová
Keyword(s):  
Magnetic Field ◽  
Numerical Simulation ◽  
Field Distribution ◽  
Induction Heating ◽  
Electromagnetic Induction ◽  
Magnetic Field Distribution ◽  
The Magnetic Field ◽  
Heated Material ◽  
Ansys Workbench

In the paper is shown the connection of two toolboxes in an Ansys Workbench solution for induction heating. In Ansys Workbench, Maxwell electromagnetism programs and Fluent have been linked. In Maxwell, a simulation of electromagnetic induction was performed, where data on the magnetic field distribution in the heated material was obtained and then transformed into the Fluent program in which the induction heating simulation was performed.

scholarly journals Guided Inquiry Lab: Its Effect to Improve Student’s Critical Thinking on Mechanics

2020 ◽  
Vol 9 (1) ◽  
pp. 87-97
Author(s):  
Ade Febri ◽  
Sajidan Sajidan ◽  
Sarwanto Sarwanto ◽  
Dewanto Harjunowibowo
Keyword(s):  
Critical Thinking ◽  
Junior High School ◽  
Creative Thinking ◽  
Thinking Skills ◽  
Critical Thinking Skills ◽  
Average Score ◽  
Guided Inquiry ◽  
Central Java ◽  
Before And After ◽  
The Impact

Learning trends in the 21st-century require students to have the ability to sort appropriate information from certain sources. To do this, students must have critical thinking skills. One of the learning models that can facilitate students to think critically is a guided-inquiry lab. Thus, the purpose of this study was to quantitatively analyze the impact of the implementation of the guided-inquiry lab model on students' critical thinking skills on mechanics material. A pre-experimental method employing one group pretest-posttest only design was applied to obtain students' critical thinking skills data before and after the implementation of the guided-inquiry lab model. A total of 32 students from a junior high school in the city of Karanganyar, Central Java, were involved as the samples in this study. The data obtained were then analyzed using N-gain calculations. Based on the data analysis, there are 81.25% of students have medium creative thinking skills after being taught with a guided-inquiry lab, meaning there is an increase in the average score of students after being taught using a guided-inquiry lab model. It can be concluded that the implementation of the guided-inquiry lab model is effective to improve students' critical thinking skills

scholarly journals From Crab Pulsar to Magnetar?

2004 ◽  
Vol 218 ◽  
pp. 257-260 ◽  
Author(s):  
A. G. Lyne
Keyword(s):  
Magnetic Field ◽  
Crab Pulsar ◽  
The Past ◽  
Interesting Possibility ◽  
Vela Pulsar ◽  
The Magnetic Field ◽  
Better Than ◽  
Field Enhancements

We review the evolution of the Crab pulsar's rotational history during the past 35 years. Representing 3.7% of the pulsar's age, it is possible to estimate the likely development of the magnetic field and characteristic age much better than previously. The increasing magnetic field of this pulsar and of other young pulsars, most dramatically the Vela pulsar, raises the interesting possibility that these objects might evolve into magnetars. We discuss the observational case for such a proposal, but note that the origin of these field enhancements may be associated with glitch activity. However, it is understood no better than the origin of the magnetar fields, but may be one and the same.

scholarly journals The Effect of Synectic Learning Model and Learning Interests on Creative Thinking Ability in Writing Free Poetry for Class V Students of SD Negeri 112320 Aek Kota Batu

2020 ◽  
Vol 3 (4) ◽  
pp. 2141-2152
Author(s):  
Desi Susanty ◽  
Abdurahman Adisaputera ◽  
Anita Yus
Keyword(s):  
Creative Thinking ◽  
Thinking Skills ◽  
Learning Model ◽  
Learning Models ◽  
High Learning ◽  
Design Data ◽  
Significant Difference ◽  
Thinking Ability ◽  
Creative Thinking Ability ◽  
Learning Interest

This study aims to determine: (1) To determine the differences in students' creative thinking skills in writing free poetry between students who are taught with the synectic learning model compared to the reciprocal learning model; (2) To determine the differences in students' creative thinking skills in writing free poetry between students who have high learning interest compared to low learning interest; and (3) to determine the interaction between learning models and interest in learning in influencing students' creative thinking abilities in writing free poetry. This research was conducted at SDN 112320 Aek Kota Batu. The research method used is a quantitative method with a 2x2 experimental design. Data collection techniques used questionnaires and tests. The data analysis technique in this study used the Two Way Anova test. The results showed that: (1) There is a significant difference in the average creative thinking ability of students who are taught with the synectic model compared with the average thinking ability of students taught with the reciprocal model (Fcount = 11.664 and sig. 0.001 < 0.05) ; (2) The average creative thinking ability of students who have high learning interest is higher than the average creative thinking ability of students who have low learning interest (Fcount = 12.165 and sig. 0.001 < 0.05); and (3) There is an interaction between learning models and interest in learning in influencing students' creative thinking abilities (Fcount = 7.054 and sig. 0.011 < 0.05).

scholarly journals Pengaruh Permainan Konstruktif Tangram terhadap Berfikir Kreatif pada Siswa Sekolah Dasar

2020 ◽  
Vol 12 (1) ◽  
pp. 37-50
Author(s):  
Jenny Nugraheni Irawan ◽  
Aditya Nanda Priyatama ◽  
Afia Fitriani
Keyword(s):  
Experimental Study ◽  
Elementary School ◽  
Data Analysis ◽  
Data Collection ◽  
Test Data ◽  
Creative Thinking ◽  
Design Data ◽  
Group Design ◽  
Before And After ◽  
Statistical Program

Tangram constructive game is one of the games that can be used to train creative thinking. The purpose of this study was to know the effect of tangram constructive game on creative thinking in elementary school student. The hypithesis of this study is that there is a significant effect of tangram constructive game on creative thinking before and after intervention. This research is an experimental study with nonequivalent crontrol group design. Data collection uses figural creativity test. Data analysis used the Mann-Withney technique with the SPSS statistical program. The result of the study show that the value of Z count = -2,363 with p = 0,18 (p<0,05). So, if can be concluded that there is a significant effect on creative thinking after intervention

scholarly journals KETERAMPILAN PEMECAHAN MASALAH, BERPIKIR KREATIF, DAN PENALARAN PADA PEMBELAJARAN MATEMATIKA MENGGUNAKAN MEDIA VISUAL [PROBLEM SOLVING, CREATIVE THINKING, AND REASONING SKILLS IN LEARNING MATHEMATICS USING VISUAL LEARNING MEDIA]

2021 ◽  
Vol 17 (1) ◽  
pp. 101
Author(s):  
Dhesy Adhalia ◽  
Nancy Susianna
Keyword(s):  
Problem Solving ◽  
Learning Strategies ◽  
Creative Thinking ◽  
Visual Learning ◽  
Thinking Skills ◽  
Problem Solving Skills ◽  
Third Grade Students ◽  
Learning Mathematics ◽  
Before And After ◽  
Reasoning Skills

<p>Problem solving, creative thinking, and reasoning skills are important skills for students to master to solve various problems that they will face in the future. However, there are still many students that have relatively low ability levels performing these three skills. To improve students' abilities in these three skills, teachers can use learning strategies that incorporate visual learning media. The problem identified in a class of third graders at a public elementary school (SDN 01) in Jagakarsa was the lack of use of learning media in the learning process in the classroom so students' ability in all three skills was less developed. A research study was conducted to determine the increase in problem solving skills, creative thinking skills, and reasoning skills of third grade students at SDN 01 Jagakarsa in math subjects after being taught using instructional media. Data sources were obtained from students' test scores before and after being taught using visual learning media. Based on the N-gain calculation and data analysis using inferential statistics, results showed that the use of visual learning media can improve students' ability to solve problems, think creatively, and reason, especially in mathematics subjects.</p><p><strong>BAHASA INDONESIA ABSTRACT: </strong>Keterampilan memecahkan masalah, berpikir kreatif, dan menalar merupakan keterampilan yang penting dikuasai siswa untuk menyelesaikan bermacam persoalan yang akan dijumpainya kelak di masa yang akan datang. Kenyataannya<strong> </strong>masih banyak ditemui siswa dengan kemampuan ketiga keterampilan tersebut yang tergolong rendah. Untuk meningkatkan kemampuan siswa pada ketiga keterampilan tersebut, guru dapat menggunakan strategi pembelajaran menggunakan media pembelajaran.<strong> </strong>Masalah yang teridentifikasi di kelas III SDN 01 Jagakarsa adalah masih kurangnya penggunaan media pembelajaran yang digunakan dalam proses pembelajaran di kelas, sehingga kemampuan siswa dalam ketiga keterampilan tersebut kurang berkembang.<strong> </strong>Oleh karena itu dilakukan penelitian untuk mengetahui peningkatan kemampuan memecahkan masalah, berpikir kreatif, serta menalar siswa kelas III SDN 01 Jagakarsa pada mata pelajaran matematika setelah diajarkan dengan menggunakan media pembelajaran. Sumber data didapat dari nilai siswa sebelum dan sesudah diajarkan dengan menggunakan media pembelajaran visual. Berdasarkan hasil perhitungan <em>N-gain</em> dan analisis data menggunakan statistik inferensial didapat kesimpulan bahwa penggunaan media pembelajaran visual dapat meningkatkan kemampuan siswa dalam memecahkan masalah, berpikir kreatif, dan menalar secara keseluruhan khususnya pada mata pelajaran matematika.</p>

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