ISSN : 1229-0718
The purposes of this study were (1) to investigate the differences in children's knowledge of and reasoning about the free-fall phenomenon according to their ages and tasks, and (2) to investigate whether the children's prior knowledge changes to post knowledge through reasoning. Forty from each of three age groups-4-, 6-, and 8-year-olds, for a (total of 120 subjects)were selected for the study. The subjects were chosen from three preschools and two elementary schools located in the middle class residential areas of Seoul and of Kyoung-Ki Province. Each child was to perform tasks dealing with weight and size. Under observation were each child's prior knowledge, reasoning and post knowledge of the free-fall phenomenon. The major findings are as follows: first, there were no differences in the children's prior knowledge of the free-fall phenomenon according to the different age groups. However the prior knowledge level of the size task was higher than for the weight task. There was an interaction effect between ages and tasks. Second, 6-and 8-year old children showed higher levels of reasoning than did 4-year old children. However, there were no differences in the children's reasoning between the different tasks. Third, 6-and 8-year old children showed higher levels of the post knowledge than 4-year old children. However, there was no difference in children's post knowledge according to different tasks. Fourth, there was a significant difference between the prior and the post knowledge. Through measuring the reasonings in the two task experiments, changes in the prior knowledge of the free-fall phenomenon were observed among all three age groups. The difference between prior and post knowledge was higher in the weight than in the size task.
강인숙․정진우․김윤지(2008). 지구의 모양, 색깔, 중력에 대한 3학년 학생들의 선개념. 초등과학교육, 27(1), 31-41.
김헤라, 이순형(2009). 유아의 빛과 그림자 현상에대한 지식의 변화. 유아교육연구, 29(3),305-323.
박선미(2004). 아동의 물리 지식: 물체의 움직임현상에 대한 아동의 이해와 발달. 인지과학,15(4), 31-47.
양일호(2003). 과학적 지식 생성과정에서 사전지식과 과학적 사고의 역할. 초등교과교육연구,4, 51-65.
채동현(1992). 한국 학생들의 중력현상에 대한 유년적 사고. 한국과학교육학회지, 12(2), 67-79.
Baillargeon, R.(1991). Reasoning about the height and location of hidden object in 4.5-6.5 month-old infants. Cognition, 38, 13-42.
Baillargeon, R. (1994). How do infants learn about the physical world? Current Directions in Psychological Science, 28, 91-204.
Bar, V., Zinn, V., Goldmuntz, R., & Carey, S.(1994). Children's concepts about weightand free fall. Science Education, 78(2),149-169.
Brown, D., & Clement, J. (1992). Classroom teaching experiments in mechanics. In R. Duit, F. Goldberg, & H. Neidderer(Eds.), Proceedings of the international workshop on research in physics learning: Theoretical issues and empirical studies. Bremen, Germany: IPN
Bullock, M. & Ziegler, A. (1999). Scientific reasoning: Developmental and individual differences. In F. E. Weinert & Schneider(Eds.), Individual development from 3 to 12: Findings from the Munich longitudinal study. New York: Cambridge University Press.
Charlesworth, R., & Lind, K. K. (2007). Math and science for young children(5th Ed.). NY : Thomson Delmar Learning.
Flavell, J. H., Miller, P., & Miller, S. (2002). Cognitive development(4th Eds.) Engelwood Cliffs, NJ : Prentice Hall.
Ginsberg, H. P. & Opper, S. (2006). Piaget' s theory of intellectual developmen(3rd Ed)(김 정민 역(2006), 피아제의 인지발달이론, 서울: 학지사), Prentice Hall
Gopnik, A. & Meltzoff, A. N. (1997). Words, thoughts, and theories. Cambrids: MIT Press.
Hewson, M. G., & Hewson, P. W. (1983). The effect of instruction using students' prior knowledge and conceptual change strategies on science learning. Journal of Research in Science Teaching, 20, 731-743.
Inhelder, B., & Piaget, J. (1958). The growth of logical thinking from childhood to adolescence. New York: Basic Books.
Kamii, C. K. (1985). Young Children reinvent arithmetic : Implications of Piaget's theory. New York : Teachers College Press.
Kamii, C. K., & DeVries, R. (1992). Physical knowledge in preschool education; Implications of Piaget's theory. New York: Teachers College Press.
Klahr, D. & Dunbar, K., (1989). Dual space search during scientific reasoning. Cognitive Science, 12, 1-48.
Koerber, S., Sodian, B. Thoermer, C., & Nett, U. (2005). Scientific reasoning in young children: Preschooler's ability to evaluate covariation evidence. Swiss Journal of Psychology, 64, 141-152.
Kuhn, D., Garcia-Mila, M., Zohar, A., & Anderson, C. (1995). Strategies of knowledge acquisition. Monographs of the Society for Research in Child Development, 60(4, Serial No. 245)
Needham, A. & Baillargeon, R. (1993). Intuition about support in 4.5-month-old infants. Cognition, 47, 121-148.
Piaget, J. (1930). The child' conception of the physical casuality. London: Kegan Paul, Trench, & Trubner.
Povinelli, D. J. (2003). Folk physics for apes. London; Oxford University Press.
Ruffman, T., Perner, J., Olson, D. R., & Doherty, M. (1993). Reflecting on scientific thinking: Children's understanding og the hypothesis-evidence relation. Child Development, 64, 1617-1636.
Ruggiero, S., Cartelli, A., Dupre, F., & Vincentini-Missoni, M. (1985). Weight, gravity and air pressure : Mental representations by Italian middle school pupils. European Journal of Science Education, 1, 205-221.
Schauble, L.(1990). Belief revision in children: The role of prior knowledge and strategies for generating evidence. Journal of Experimental Child Psychology, 49, 31-57.
Siegler, R. S. & Alibali, M. S.(2005). Children's thinking(4th Ed)(박영신․이현진․정윤경․최 영은 역(2007). 아동 사고의 발달. 서울: 아카 데미프레스), NJ ; Prentice Hall
Smith, C., Carey, S., & Weiser, M. (1985). On differentiation: A case study of the development of the concepts of size, weight, and density. Cognition, 21(3), 177-237.
Sodian, B. Zaitchik, D., & Carey, S. (1991). Young children's differentiation of hypothetical beliefs from evidence. Child Development, 62, 753-766.
Spelke, E. (1991). Physical knowledge in infancy. In S. Carey & R. Gelman(Eds.). The epigenesis of mind. New Jersey. Lawrence Erlbaum.
Spelke, E. (1994). Initial knowledge: Six suggestions. Cognition, 50, 431-445.
White, J. E. (1990). Children's mental models of gravity and their interpretations and explanations of the free fall of objects. Doctoral dissertation, University of Georgia.