In one of his latest works, Piaget (1980) describes the course of development as alternating between periods of relative equilibrium, in which thinking is deductive and discursive, and periods of equilibration, in which thinking is dialectical and constructive. Progressive change depends on these dialectical periods, during which the construction…

Discusses two strategies that provide concrete-thinking students with opportunities to develop and use formal or critical-thinking skills. Describes using task analysis and long-term investigations in the classroom. (YP)

Assesses the ability of tenth grade students (n=364) to acquire meanings of graphs that are frequently used in their biology textbooks. Indicates that the main source of failure to process information equally well from tables and graphs was not a lack of basic analytical skills but rather a lack of understanding of the relationship between…

Presents a discussion on the significance of questioning techniques in the development of critical thinking skills. Stresses that teachers can increase a student's mental engagement by using appropriate wait time, increasing nonevaluative responses, avoiding rephrasing a question, and avoiding questions requiring a yes or no response. (RT)

Effective teaching strategies must be developed to help students bridge the gap between concrete operational thinking and full formal thinking in the content areas. Reading for meaning requires readers to categorize subjects, recognize relationships, develop and maintain a sequence of thought, recognize and understand inferences, and draw…

The purpose of this study was to investigate the relationship between the achievement of some abstract concepts in "molecular genetics" and prior knowledge, formal reasoning ability, and sex. The major findings of the study were: (1) prior knowledge had a high significant correlation with the achievement of abstract concepts; (2) the…