Mathematical Thinking in Differential Equations Among Pre-Service Teachers

2013 ◽  
Vol 63 (2) ◽  
Author(s):  
Fereshteh Zeynivandnezhad ◽  
Zaleha Ismail ◽  
Yudariah Mohammad Yosuf
Keyword(s):  
Data Analysis ◽  
Mathematics Education ◽  
Differential Equations ◽  
Crucial Role ◽  
Mathematical Thinking ◽  
Conceptual Learning ◽  
Descriptive Statistics ◽  
Low Level ◽  
Test Items ◽  
Faculty Of Education

Pre-service teachers should be equipped with mathematical thinking. Mathematical thinking is one of the most critical aims of the mathematics education has an extremely crucial role for enhancing then conceptual learning. Mathematical thinking is a process that enables students to expand the for the complexities of their ideas. This article describes mathematical thinking in differential equations among pre-service teachers. The study was carried out in the Faculty of Education, Universiti Teknologi Malaysia. A set of items was designed to test mathematical thinking level. The instrument was developed based on Mason's framework of mathematical thinking. Test items measure mathematical thinking namely, specializing, generalizing, conjecturing, and convincing. Descriptive statistics was applied for data analysis. The result indicated that students' mathematical thinking is in the low level mostly specializing. The implications of this research will lead to some recommendations and approaches to enhance mathematical thinking.

PENGARUH KEMANDIRIAN BELAJAR DAN BERPIKIR LATERAL TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA PADA MATA KULIAH STRUKTUR ALJABAR

2019 ◽  
Vol 2 ◽  
Author(s):  
Condro Endang Werdiningsih
Keyword(s):  
Data Analysis ◽  
Mathematics Education ◽  
Problem Solving ◽  
Mathematical Problem ◽  
Descriptive Statistics ◽  
Survey Method ◽  
Mathematical Problem Solving ◽  
Academic Year ◽  
Positive Effect

Abstract.The purpose of this study to determinan the influence of learning independence and lateral thingking on mathematical problem solving abilities. This study used survey method with double regretion analysis. The total number of samples as many 30 respondents from grade VII majoring in mathematics education on academic year of 2018/2019. The data were analyzed with descriptive statistics, data analysis, and test hypotheses used with double regretion. With the hipothesis test, which gave the results: 1) the learning independence give positive effect and significance result to mathematical problem solving abilities. 2) the lateral thingking give positive effect and significance result to mathematical problem solving abilities. 3) Then using double regresion analysis, it was gotten conclusion that there are positive effect and significance from both of learning independence and alsolateral thingking on mathematical problem solving abilities.

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

Hubungan Dinamika Kelompok dan Keberdayaan Peternak dengan Keberhasilan Program Kelompok Peternak Sapi Potong

2019 ◽  
Vol 2 (5) ◽  
pp. 603
Author(s):  
Muhammad Romadhon ◽  
Amiruddin Saleh
Keyword(s):  
Data Analysis ◽  
Correlation Coefficient ◽  
Group Dynamics ◽  
Descriptive Statistics ◽  
Statistic Analysis ◽  
Group Approach ◽  
The People ◽  
The Government ◽  
People Group ◽  
Cattle Farmer

A group approach having an excess because its scope broader, and in accordance with communal culture of the people. Group dynamics and independency farmers become a yardstick to judge whether the programs the government (the course of development) involving group cattle farmers cut is sustainable or not, so that it can be evaluated for sustainability the next. The purpose of research are (1) analyze group dynamics formed in the group spr mega jaya, (2) analyzed levels of independency of farmers in the farmers spr mega jaya, (3) analyze relations group dynamics and independency of farmers with the success kejar farmers spr mega jaya. Data analysis of analysis descriptive statistics (a frequency, the percentage, on the average), and statistic analysis inferential by test a correlation coefficient rank the spearman. The research results show that group dynamics spr mega jaya tends in category high, and independency of farmers spr mega jaya tends in category enough, while test relations shows that there is a positive connection welfare between group dynamics the cattle farmer and independency of farmers with the success kejar cattle farmers cut. This means that the more dynamic group spr mega jaya and independency of felt farmers high, so the success of the program group farmers who reached the higher.Keywords: group dynamics, independency of groups, sekolah peternakan rakyatABSTRAKPendekatan kelompok memiliki kelebihan karena cakupannya yang lebih luas, dan sesuai dengan budaya masyarakat komunal. Dinamika kelompok dan keberdayaan peternak menjadi tolok ukur untuk menilai apakah program pemerintah (program pembangunan) yang melibatkan kelompok peternak sapi potong bersifat sustainable atau tidak, sehingga dapat dievaluasi untuk keberlanjutan program selanjutnya. Tujuan dari penelitian adalah (1) menganalisis dinamika kelompok yang terbentuk dalam kelompok SPR Mega Jaya, (2) menganalisis tingkat keberdayaan peternak pada kelompok peternak SPR Mega Jaya, (3) menganalisis hubungan dinamika kelompok dan keberdayaan peternak dengan keberhasilan program kelompok peternak SPR Mega Jaya. Analisis data berupa analisis statistik deskriptif (frekuensi, persentase, rata-rata), dan analisis statistik inferensial dengan uji koefisien korelasi rank Spearman. Hasil penelitian menunjukkan bahwa dinamika kelompok SPR Mega Jaya cenderung pada kategori tinggi, dan keberdayaan peternak SPR Mega Jaya cenderung pada kategori cukup, sedangkan uji hubungan menunjukkan bahwa terdapat hubungan positif signifikan antara dinamika kelompok peternak dan keberdayaan peternak dengan keberhasilan program kelompok peternak sapi potong. Hal ini berarti bahwa semakin dinamis kelompok SPR Mega Jaya dan keberdayaan yang dirasakan peternak tinggi, maka keberhasilan program kelompok peternak yang tercapai semakin tinggi.Kata kunci: dinamika kelompok, keberdayaan kelompok, sekolah peternakan rakyat

Titchmarsh's theorem of Hankel transform

2019 ◽  
pp. 11-24
Author(s):  
Mohamed-Ahmed Boudref
Keyword(s):  
Number Theory ◽  
Data Analysis ◽  
Partial Differential Equations ◽  
Differential Equations ◽  
Lipschitz Condition ◽  
Analytic Number Theory ◽  
Hankel Transform ◽  
Partial Differential ◽  
Analytic Number ◽  
Bessel Transform

Hankel transform (or Fourier-Bessel transform) is a fundamental tool in many areas of mathematics and engineering, including analysis, partial differential equations, probability, analytic number theory, data analysis, etc. In this article, we prove an analog of Titchmarsh's theorem for the Hankel transform of functions satisfying the Hankel-Lipschitz condition.

Introduction to Statistical Methods for Outlier Detection and Sample Homogeneity Assessment of Reference Materials and Proficiency Test Items

2021 ◽  
Author(s):  
Yi-Ting Chen ◽  
Keyword(s):  
Data Analysis ◽  
Outlier Detection ◽  
Reference Materials ◽  
Proficiency Test ◽  
Test Items ◽  
Homogeneity Assessment ◽  
Iso 13528 ◽  
Scope Of Application ◽  
Iso 5725 ◽  
Sample Homogeneity

Due to the homogeneity of the product or sample, it will affect whether it meets the scope of application and purpose. For example, the reference materials(RM) produced by the reference material producer(RMP), and the proficiency test items selected by the proficiency testing provider(PTP), in order to ensure the reference materials or proficiency test items have consistent characteristics or comparability, they should be proved to have certain homogeneity. However, before performing homogeneity assessment, it is necessary to measure the characteristic parameters of the reference materials or proficiency test items to obtain a sufficient number of measured values for data analysis, but there may be outliers in the measured values that may affect data analysis and interpretation of the results. Therefore, this article will refer to ASTM E178-16a:2016[1], ISO 5725-2:1994[2], ISO 13528:2015[3], etc., to introduce several outlier detection and homogeneity assessment methods, supplemented by case studies. Finally, this article will remind the precautions for the use of the method, so that readers can choose the appropriate method for use in the actual analysis.

ANALISIS TINGKAT KEBUGARAN JASMANI MAHASISWA PGSD SELAMA PANDEMI COVID-19 DITINJAU DARI KEMAMPUAN GERAK NON LOKOMOTOR

2020 ◽  
Vol 8 (4) ◽  
pp. 188
Author(s):  
Arif Widodo ◽  
Safruddin Safruddin ◽  
Nasaruddin Nasaruddin ◽  
Radiusman Radiusman ◽  
Muhammad Sobri
Keyword(s):  
Data Analysis ◽  
Physical Fitness ◽  
Descriptive Statistics ◽  
Learning Activities ◽  
Student Body ◽  
Body Balance ◽  
The Poor ◽  
Descriptive Approach ◽  
Quantitative Descriptive ◽  
Locomotor Ability

The Covid-19 pandemic forces all learning activities to be carried out online. College sports lessons are also conducted online. This study aims to determine the level of physical fitness of students during online learning during the Covid-19 pandemic. This research uses a quantitative descriptive approach. Data collection using a survey. The instrument used was a performing test. Indicators of student physical fitness can be seen from the non-locomotor motion of standing stork and sit and reach. The research sample was 30 students. Data analysis using descriptive statistics. The results showed that the physical fitness of students during the Covid-19 pandemic when viewed from their non-locomotor ability to move was in the poor category. This can be seen from the low results of student body balance and flexibility tests.

Correlates of Ageism Among Health Care Professionals Working With Older Adults

2018 ◽  
Vol 30 (3) ◽  
pp. 303-312 ◽  
Author(s):  
Ziyafet Uğurlu ◽  
Sultan Kav ◽  
Azize Karahan ◽  
Ebru Akgün Çıtak
Keyword(s):  
Older Adults ◽  
Health Care ◽  
Data Analysis ◽  
Health Care Professionals ◽  
Educational Status ◽  
Descriptive Study ◽  
Descriptive Statistics ◽  
The Mean ◽  
Student’S T ◽  
Student’S T Test

Introduction: The changing proportion of older adults in society necessitates the need to determine the attitudes of health care professionals toward older adults. The purpose of this study was to explore attitudes of ageism and its correlates among health care professionals working with older adults. Method: This descriptive study was conducted in seven hospitals in five cities in Turkey. A total of 628 health care professionals participated in this study. The Fraboni Scale of Ageism (FSA) was used to collect data. Descriptive statistics, student’s t test, one-way analysis of variance and multivariate linear regression were used for data analysis. Results: The mean total score from the FSA was 56.9 ( SD = 8.0). Education (β = −.18, p < .001) and difficulty with the care of older adults (β = −.10, p < .05) were statistically significant predictors of the FSA score. Conclusions: The attitudes of health care professionals toward older adults were generally positive and affected by difficulty in providing care and the educational status of the health care professionals.

scholarly journals To Evaluate The Self-Apprehension Of Dental Students About Their Own Smile Aesthetics

2018 ◽  
Vol 08 (04) ◽  
pp. 236-240
Author(s):  
Farzana Memon ◽  
Salwa Memon ◽  
Muhammad Muslim Khahro ◽  
Abdul Salam Memon
Keyword(s):  
Data Analysis ◽  
Observational Study ◽  
Dental Students ◽  
Descriptive Statistics ◽  
The Self ◽  
Dental Student ◽  
Cross Sectional ◽  
Dental Appearance ◽  
Level Of Significance ◽  
Smile Aesthetics

Objective: This cross-sectional observational study was accomplished at Isra University to evaluate the self-apprehension of dental students related to their own smile. Material and Methods: This study was comprised of 166 dental students belonging to both genders. A structured selfadministered questionnaire was used to conduct a survey among undergraduate dental students at all study levels in Isra University. Questionnaire was designed to observe the self-apprehension and satisfaction of students with reference to their dental appearance. Data analysis was done using descriptive statistics via 21st version of SPSS. 0.05% was established as the level of significance. Results: 166 students (32 males and 134 females) participated in this survey. 32.5% students were shy as against 91.6% students who were bold at smiling in public. 55.4% students preferred to be photographed from side pose while 69.9% were inspired by other’s smile. In terms of teeth dimensions, 60.2%, 54.8% and 46.4% students were gratified with the length, breadth and form of their teeth respectively. Conclusion: This study concludes that greater number of dental student were self-assured regarding their apprehension on their own dental appearance. Majority of the females though contented with the dimensions and contour of their teeth, urged to have lighter teeth.

scholarly journals Examination of the Risk Assessment Levels of Athletes in Different Branches According to Some Variables

2018 ◽  
Vol 6 (10) ◽  
pp. 193
Author(s):  
Abdurrahman Kirtepe
Keyword(s):  
Risk Assessment ◽  
Data Analysis ◽  
Standard Deviation ◽  
Personal Information ◽  
Educational Status ◽  
Analysis Data ◽  
Descriptive Statistics ◽  
Income Status ◽  
Package Program ◽  
Sample Method

In this study, the risk assessment levels of athletes in different branches were examined in terms of various variables. Descriptive scanning model was used in the study. In the research, the survey was completed with a sample method of 105 people. The questionnaire was used as a data collection tool in the research. The questionnaire consists of questions about personal information and the Risk Assessment scale for athletes and coaches. Data analysis was performed in SPSS 21 package program. Descriptive statistics such as frequency, percent, and mean, standard deviation, minimum and maximum were used in data analysis. Data analysis was performed in SPSS 21 package program. Descriptive statistics such as frequency, percent, and mean, standard deviation, minimum and maximum were used in data analysis. As a result of the research, it was determined that the risk assessment perceptions of athletes according to their age, branches, educational status and income status did not differ. As a result of the research, it was determined that the risk assessment perceptions of athletes according to their age, branches, educational status and income status did not differ.

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