The study of conceptual change traces its heritage to the notions of paradigm (networks of shared beliefs, concepts, practices) and paradigm shift made famous by Thomas Kuhn in his book, "The Structure of Scientific Revolutions". Kuhn's work was quickly linked to developmental psychology (how knowledge develops) and to science education (teaching…

This experiment investigated the effect of the presentation of a globe--the culturally accepted artifact representing the earth--on children's reasoning in elementary astronomy. Forty-four children from grades 1 and 3 were interviewed individually. First, the children were asked to make their own representations of the earth (i.e., drawings and…

An experiment investigated how methods of questioning affect children's responses regarding the shape of the earth and the day/night cycle. Seventy-two children from Grade 1 and Grade 3 in a middle-class elementary school in Athens, Greece, were tested either by an open method of questioning or by a forced-choice method of questioning. The two…

Observes that a naive grasp of science makes it difficult to acquire further scientific knowledge. Argues that students must restructure intuitive knowledge to conform to contemporary scientific ideas. Explores mental models that students employ in thinking about scientific concepts. Explains how teachers should work from these models to change…

This paper presents findings from research on knowledge acquisition in observational astronomy to demonstrate the kinds of intuitive models children form and to show how these models influence the acquisition of science knowledge. Sixty children of approximate ages 6, 9, and 12 were given a questionnaire to investigate their knowledge of the size,…

Recent research in cognitive science and science education suggests that science-naive individuals have an understanding of the natural world based on their interpretation of everyday experience. This can make the process of conceptual change difficult. This paper presents ideas related to the acquisition of knowledge in astronomy. A theoretical…

Examines perceptions concerning the shape of the earth and the causes of the day/night cycle among American Indian children. Interviews with 26 Lakota/Dakota elementary children revealed a preference for a synthetic model of the earth and animistic explanations for the day/night cycle. Includes excerpts from the interviews. (MJP)

This document examines children's and adults' knowledge of observational astronomy and characterizes the kinds of mental models students form when asked questions in astronomy. Mental models were grouped into three categories: intuitive, synthetic, and scientific. Implications for the design of curricula and for instruction are identified. In…

This document reports the results of a cross-cultural study on children's knowledge about the shape, gravity, movement, and location of the Earth and about the day/night cycle. The subjects of the study were elementary school students from Greece (N=90) and the United States (N=60). The results of the study showed that the children in both samples…