Previous research indicates children reason in different ways about horizontal motion and motion in fall. At the same time, their understanding of motion down inclines appears to result from an interaction between horizontal and vertical motion understanding. However, this interaction is still poorly understood. Understanding of speed change may…

Science educators have long been concerned with how formal schooling contributes to learners' capacities to engage with science after school. This article frames productive engagement as fundamentally about the coordination of claims with evidence, but such coordination requires a number of reasoning capabilities to evaluate the strength of…

The impulse to investigate the natural world is deeply rooted in our earliest childhood experiences. This notion has long guided researchers to uncover the cognitive mechanisms underlying the development of scientific reasoning in children. Until recently, however, research in cognitive development and education followed largely independent…

Instructors of elementary science methods classes have long lamented the significant difficulties their students exhibit when trying to understand the many complexities of teaching science. As noted by some researchers and practicing teachers, preservice teachers often fail to developmentally function at desired levels with respect to…

Describes the intellectual development stages ascribed to children by Jean Piaget. Characteristics and examples are given for sensori-motor, preoperational, concrete operational, and formal operational thinking periods. Implications are given for elementary school science education, including (1) formal instruction does not accelerate acquisition…

The author advocates the incorporation of a science program designed to recognize cultural differences and to develop process skills in children in developing countries. (CP)

THE PURPOSE OF THE STUDY WAS TO EXPLORE THE PIAGET CONCEPT OF CONSERVATION WITH REGARD TO THE CHILD'S CONCEPT OF THE PROPERTY OF LIQUIDS. AN INVESTIGATOR-CONSTRUCTED CONSERVATION INVENTORY WAS GIVEN TO 45 KINDERGARTEN AND FIRST GRADE PUPILS SELECTED FROM THE PRAIRIE ELEMENTARY SCHOOLS, URBANA, ILLINOIS, TO PROVIDE AN INDEX OF THE CHILD'S…

THE STUDY ASCERTAINED WHETHER VARIOUS TRAINING PROCEDURES CAN INFLUENCE THE ACQUISITION OF THE "PIAGETIAN" CONCEPT OF CONSERVATION OF SUBSTANCE. EQUAL NUMBERS OF MALE AND FEMALE, CAUCASIAN, KINDERGARTEN CHILDREN WERE RANDOMLY ASSIGNED TO FOUR EXPERIMENTAL AND TWO CONTROL GROUPS. THE TRAINING CONDITIONS WERE COGNITIVE CONFLICT, LANGUAGE…

This study examines the effectiveness exercises based on the cognitive conflict, existing within the child, between two representational systems related to temperature: the qualitative-verbal one and the quantitative-numerical one as these relate to the advancement of children's understanding of the concept of temperature. (Author/DS)

SCIENCE UNITS CONSTRUCTED TO DIRECTLY TEACH CRITICAL THINKING ARE COMPARED WITH CONVENTIONAL SCIENCE UNITS FOR EFFECTIVENESS IN THE TEACHING OF CRITICAL THINKING. THE SAMPLE INCLUDED 1,554 FOURTH, FIFTH, AND SIXTH GRADE STUDENTS TAUGHT BY 65 TEACHERS IN FIVE DIFFERENT SCHOOL SYSTEMS. TEACHERS OF THE 469 STUDENTS IN THE RESEARCH GROUP WERE…

Examples of explanations students give during science lessons are used to demonstrate that there are a number of very different modes of explaining. In addition, it is suggested that the peculiarly scientific method of explanation is fraught with difficulties, some of which current learning theories may just be able to describe. Areas discussed…

An increase in the cognitive restructuring aspect of field-independence was found to be associated with an increase in formal operational thought in 11- to 12-year-olds who were given materials designed to achieve this result. Materials used (including computer programs) are described in an appendix. (JN)

Investigated whether instructing children in the component skills underlying Piagetian transitivity tasks would increase their performance on both transitivity-related tasks and on reasoning tasks not directly related to transitivity. Results indicate that incorporating the quantification of certain abstract symbols, training can influence…

Reports the results of a study in which children below the age of eleven were tested on their ability to perform several tasks of class inclusion and a task relating to the conservation of weight. (JR)