• Journal of the Korean School Mathematics Society
• /
• v.13 no.3
• /
• pp.483-498
• /
• 2010

The purpose of this paper is to investigate the dispositions of university students' understanding and reasoning about rational number concept. For this, we surveyed for the subject groups of prospective math teachers(33), engineering major students(35), American engineering and science major students(28). The questionnaire consists of four problems related to understanding of rational number concept and three problems related to rational number operation reasoning. We asked multi-answers for the front four problem and the order of favorite algorithms for the back three problems. As a result, we found that university students don't understand exactly the facets of rational number and prefer the mechanic approaches rather than conceptual one. Furthermore, they reasoned illogically in many situations related to fraction, ratio, proportion, rational number and don't recognize exactly the connection between them, and confuse about rational number concept.

• The Journal of Sustainable Design and Educational Environment Research
• /
• v.17 no.1
• /
• pp.23-32
• /
• 2018

The results of the survey on the number of students enrolled in 1,337 elementary schools in the 29 provinces nationwide are as follows. First, in the first Newtowns, the number of enrolled students is 601~750. In particular, 4 small schools (4.2%) showed 300 small sized schools. Second, the number of schools in the metropolitan area is 451~750, and the number of schools under 300 students is 16, accounting for 5.6% of the total. Third, the Chungcheong Province is the largest in the 751~900 people, but relatively fewer than 150 students account for more than 13% of the total. Fourth, Yeongnam region has the largest number of enrolled students in the 301 ~ 450 classrooms, and the number of schools with 150 under 50 schools is 300 and the number of under schools is 118 with 24.3%. Fifth, Honam area is the most in 601 ~ 750 people, but the number of schools under 150 students is 27 and the number of under 300 schools is 23.5%. In particular, small schools in Yeongnam region and Honam area are more than twice as high as other areas. Additional follow-up studies are needed for other cities.

• Journal of Family Resource Management and Policy Review
• /
• v.20 no.1
• /
• pp.109-140
• /
• 2016

The primary objective of this study was to classify different family values and to examine how university students' perceptions of childbirth differ according to the types of family values. The sample for this study consisted of 601 university students living in the cities of Seoul, Incheon, and the Gyeonggi province. The data were collected using structured questionnaires distributed through an online survey. Descriptive statistics including frequencies, percentages, means and standard deviation and cluster analysis, One-Way ANOVA and $X^2$ test are applied to analyze the data. The major results of this study are as follows: 1. The values of the university students regarding marriage, children, and familism were used as parameters to categorize the different types of family values on the cluster analysis. The results of the cluster analysis showed that the university students' family values could be classified into three types; "family-centered values", "individual-centered values", and "familism children-centered value". 2. The family values of the university students differed according to each student's gender, age, religion, socioeconomic status, gender-role attitude, and relationships with his or her father and or mother. 3. On average, the number of children that the students would like to have in the future is higher than the number of children that they actually plan to have. 4. The students' perceptions of family planning and low birthrate circumstances differed according to their family values. The university students categorized as having "family-centered values" planned to have the highest number of children in the future and thought that the low birthrate was a very serious issue, whereas the students with "individual-centered values" planned to have the lowest the number of children in the future. 5. To conclude the study, recommendations were made for the government to improve the low birthrate and for facilitate further research regarding this issue.

• Journal of the Korea Safety Management & Science
• /
• v.23 no.4
• /
• pp.61-66
• /
• 2021

In this study, according to the staking method of the fire hose in the indoor hydrant system, the number of kinks when the fire hose is deployed was measured and analyzed to examine how the staking method of the fire hose affects the kink when the hose is deployed. The fire hose staking method was classified into three types: donut-type, accordion-type, and hose hanger-type, and the walking speed and number of kinks were measured by repeating the experiment 5 times for male and female students. The results of the study are as follows. (1) Among the three types of fire hose staking methods, the donut-type staking method had an average of 92 times for male students and 86 times for female students on average. (2) The accordion-type and hose hanger-type staking methods showed similar results with an average of one or two kinks for both male and female students. (3) Regardless of the staking method, it was found that in general, male students with high walking speed had more kinking than female students with slow walking speed.

• Journal of the Korean Dietetic Association
• /
• v.9 no.1
• /
• pp.47-56
• /
• 2003

Currently, dietary life in Korea is rapidly changing. New food from other countries introduced to the diet with changing economic and social environment. The number of meals away from home is increasing. Also, number of students who served by the school food service are increasing. In this paper, the menu in the school food service are compared between 1995 and 2001. Analysis was done to see changes in the use of Korean traditional foods. Between July, 2001 and August, 2001, by mail 103 schools were surveyed to analyzed menu. Menu from 2001 survey are compared with menu from 1995 survey. The results are following; 1) New menus are introduced in 2001 compared with 1995. 2) The number of menu using animal foods are increasing in 2001. 3) Among cooking methods, stir frying, and deep frying, are used more in 2001 than that of 1995. 4) The number of Korean dish served are decreased in 2001. 5) Students favorite dish are changed. Students like dishes cooked with deep frying method and western foods. With these results, menu of school food services become more westernized and using more frying methods because of students' taste preference. These trend are not recommendable for the students health, because it is known that Korean traditional dishes are more healthful. There should be more research and effort to keep Korean tranditional foods in the menu of the school food service for students health.

• Korean Journal of Human Ecology
• /
• v.10 no.3
• /
• pp.275-290
• /
• 2001

The purpose of this study was to investigate the transition of clothing behavior and clothing consumption pattern of college students in Choong Nam province. 75 subjects were surveyed in 1995 and 2000. For statistical analysis, $X^2$-test were used by SPSSWIN program. The results of this study were as follows. 1. Number of clothing showed significant difference according to year and the number of coat and formal wear increased in 2000 compared with 1995. 2. Clothing consumption pattern showed significant difference according to year. College students purchased on sale more frequently and preferred more expensive clothes in the year 2000 compared with 1995. 3. Contentment for clothing behavior showed significant difference according to year and the extent of contentment decreased as years go by. 4. Number of clothing showed significant difference according to sex and female students had more clothes than male students, but the difference between male and female decreased as years go by from 1995 to 2000. 5. Clothing consumption pattern showed significant difference according to sex and female students purchased ell sale more frequently than male students, but the difference between male and female decreased as years go by. 6. Contentment for clothing behavior showed significant difference according to sex, but female students described to not adequate the quantity of feminine style wear and the interest in fashion of male students was increased as years go by.

• Journal of Elementary Mathematics Education in Korea
• /
• v.14 no.3
• /
• pp.745-768
• /
• 2010

The purpose of this study at gifted students' solving ability of the given study task by using all knowledge and tools which encompass mathematical contents and curriculums, and developing the teaching learning materials of gifted students in accordance with their level which tan enhance their mathematical thinking ability and develop creative idea. With these considerations in mind, this paper sought for the standard and procedures of teaching learning materials development according to the levels for the education of the mathematically gifted students. presented the procedure model of material development, produced teaching learning methods according to levels in the task of figurate number, and developed prototypes and examples of teaching learning materials for the mathematically gifted students. Based on the prototype of teaching learning materials for the gifted students in mathematics in accordance with their level, this research developed the materials for students and materials for teachers, and performed the modification and complement of material through the field application and verification. It confirmed various solving processes and mathematical thinking levels by analyzing the figurate number tasks. This result will contribute to solving the study task by using all knowledge and tools of mathematical contents and curriculums that encompass various mathematically gifted students, and provide the direction of the learning contents and teaching learning materials which can promote the development of mathematically gifted students.

• The Korean Journal of Health Service Management
• /
• v.5 no.4
• /
• pp.81-93
• /
• 2011

The purpose of this study was to examine the stressors of students in high school. Demographic data such as jobs of parents, family types, levels of living (parents' monthly income) and students' school records, high school types, number of friends, religion, pocket money and their sex showed as the main causes of high school students' stress. The data was analyzed by a t-test, one-way ANOVA, and Duncan Multiple Range Test. The variable which significantly influenced the general properties was sex(p=0.001), high school type (p=0.000), number of friends (p=0.002), parents monthly income (p=0.011) and whether existence of their father or not (p=0.045). In the result (stress score), girl students (25.07) feel greater stress than boy students (20.68). High school type, an academic girls' high school (27.34) and boys' high school (25.67) showed the highest. It was indicated in the study that it is necessary to have programs that help students' stress management and improve high school type Systems.

• The Mathematical Education
• /
• v.45 no.1 s.112
• /
• pp.61-74
• /
• 2006

The ability of understanding the number and number systems, grasping the properties of number systems, and manipulating number systems is the foundation to understand algebra. It is useful to deepen students' mathematical understanding of number systems and operations. The authentic understanding of numbers and operations can make it possible for the students to manipulate algebraic symbols, to represent relationship among sets of numbers, and to use variables to investigate the properties of sets of numbers. The high school students need to understand the number systems from more abstract perspective. The purpose of this study is to study on understanding and application ability of eleventh graders of basic properties of operations with real numbers.

• The Journal of Sustainable Design and Educational Environment Research
• /
• v.17 no.2
• /
• pp.1-10
• /
• 2018

Due to the sudden drop in the number of students currently, Korea is facing a turning point in the urgent need to revise the school acceptance plan policy. Especially, in the case of the decrease of the number of students, the reckless establishment of a school in a certain area has an adverse effect of further reducing the number of students in the nearby school. The purpose of this study is to provide basic data on the appropriate scale policy through the correlation between the opening school year and the number of enrolled students in 19 out of 1,179 schools. The results of the linear regression analysis are as follows : First, in 19 cities nationwide, 17 cities except Suwon city and Anyang city had a hypothesis that 'the number of new school students is more than the number of existing school students'. Second, not only the results of the analysis of 1,179 schools in Korea, but also the results of regional analysis showed a hypothesis. Third, there are many small schools and oversized schools in the national city. It is necessary to establish an appropriate school policy.