The study reported in this paper intended to trace what Chinese children think about life and identify their naive theories. Fifty-eight 5-year-old children in Taiwan from 39 kindergartens were interviewed using a semi-structured instrument. Results indicate that preschool children have preconceptions about the concept of life even before entering…

Reports results of procedures directed at isolating and identifying students' difficulties in comprehending the concepts involved in lessons about gas exchange and respiration. Indicates that pupils (n=137) had deficient understanding of prerequisite concepts and tended to operate at the concrete operational level, whereas the highly abstract…