• Title/Summary/Keyword: liquid conservation concept

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Liquid Conservation Concept In The Water Evaporation Phenomenon According To The Age and Task-Situations (연령과 과제상황에 따른 물의 증발현상에 대한 아동의 액체보존개념)

  • Kim, Eun-Young
    • Korean Journal of Human Ecology
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    • v.22 no.1
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    • pp.17-27
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    • 2013
  • The purpose of this study is to investigate children's liquid conservation concept according to their ages and task-situations in the water evaporation phenomenon. Thirty from each 4-, 6- and 8-year-old age groups (total of 90 subjects) were selected for this study. The subjects were recruited from two day-care centers, a kindergarten, and an elementary school, in Seoul. Statistical methods used for data analysis were frequencies, percentiles, means, standard deviations and repeated measures ANOVA. As a result, there was a significant difference in children's liquid conservation concept in the evaporation of water according to their ages and task-situations. 8-year-old children showed levels of cognition than 4- and 6-year-olds. Children showed higher levels of cognition in the task of drying than in the task of water level changes.

Liquid Conservation Concept in the Water Boiling Phenomenon among 4-, 6-, 8- Year Olds (물의 비등현상에 대한 4, 6, 8세 아동의 액체보존개념)

  • Kim, Eun Young;Yi, Soon Hyung
    • The Korean Journal of Community Living Science
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    • v.23 no.4
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    • pp.447-455
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    • 2012
  • The purpose of this study was to investigate children's conception of liquid conservation according to their ages and tasks in the boiling phenomenon The subjects were thirty 4-year-olds, thirty 6-year-olds, and thirty 8-year-olds recruited from two day-care center, one kindergarten, and one elementary school, in Seoul. Statistical methods used for data analysis were frequencies, percentiles, means, standard deviations and repeated measures ANOVA. As the result, there was a significant difference in children's conception of liquid conservation in the boiling of water according to their ages. 8-year-old children showed higher levels of cognition than 4 and 6-year-olds. There was no difference in children's conception of liquid conservation in the boiling of water according to tasks.

Children's Intelligence, Concept of Conservation, and the Relations With Learning English (아동의 지능, 보존개념의 발달과 영어학습과의 관계분석)

  • Woo, Nam Hee;Kim, Hyun Shin
    • Korean Journal of Child Studies
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    • v.25 no.1
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    • pp.1-12
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    • 2004
  • This study investigated the relations of children's age, intelligence, and the concept of conservation to their learning of English. Ten 4-year-old children from 1 child-care center and 13 7-year-old children from 1 elementary school were tested after completion of 8 sessions of experimental English classes. Children's intelligence was measured by K-WPPSI for 4-year olds and K-WISC for 7-year-olds. Children were tested for number and liquid conservations. A Korean teacher with 11 years of experience of teaching children at American elementary schools taught the 2 groups with the same subjects and methods. Data were analysed by independent samples t-test, Mann-Whitney U test, and Pearson's r. The results showed that children's age and the concept of conservation were related to English learning. No statistically significant relationship with IQ was found.

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Conservation Concept Among Rural Children in Korea (우리나라 농촌아동(農村兒童)의 발달단계별(發達段階別) 보존(保存)개념)

  • Cho, Bok Hee
    • Korean Journal of Child Studies
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    • v.2
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    • pp.41-53
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    • 1981
  • The purpose of this study was to find out conservation concept acquisition in children of pre-operational and concrete periods. The data in this study were obtained through experimental methods with 62 children(28 males and 34 females) of 3-11 ages in Korean rural areas. The Piagetian instruments devised by Gelman were used for the study ; length, liquid, quantity, mass, and volume conservation tasks. Percentile and $x^2$-test were applied for the statistical analysis of data: and the results of the experiment are as follows: 1) Most children aged 3-9 years did not appear to understand that the length of sticks stayed the same regardless of position. 2) In liquid quantity conservation, children centered their attentions on one aspect ; juice level or number of container. Their conservation concept was developed correlating with ages. 3) In the experiment of mass conservation by using play dough, only 7.1% of children of pre-operational period and 47.1% of concrete period affirmed that the amounts of play dough were same after changed shape. 4) In volume task, 29.4% children aged 7 to 11 years admitted to conservation. 5) It is found that girls acquired length conservation earlier than boys, while there was no significant difference between boys and girls in other conservation tasks.

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