Suggests that students who reason with only concrete thinking patterns may become formal thinkers through the use of the following instructional pattern: (1) the introduction of an undifferentiated whole, (2) differentiation of the whole through concrete experiences, (3) invention of symbolic notation, (4) application of concepts which lead to…

Discusses how biology teachers can design or adapt existing laboratory and field experiences to promote reflective thinking and self-regulation of students. (HM)

Presents a descriptive analogy comparing Piaget's theory of intellectual development to the development of athletic abilities in order to provide insight into Piagetian theory. (SL)

The paper presents a discussion of a theory of intelligence which postulates that intelligence develops rather than that intelligence is an innate ability possessed in full measure at birth. Discussion of unresolved issues surrounding their theory is presented. The effect of such a theory on science teaching is discussed. (RE)

Introduces biology teachers to the central ideas of Piaget's theory of intellectual development. Also presents a scheme of biology instruction and classroom procedures based on a Piaget-related theory of learning. (PEB)

Eighty-two children (aged 4 through 6) were administered a Backward Digit Span test to measure M-space (mental capacity) and four conservation tasks: number, substance, continuous quantity and weight. (MS)

Discusses whether formal thought constitutes a structured whole and role of propositional logic in advanced reasoning. Presents aspects of advanced reasoning model, considering hypothesis generation/testing as central processes in intellectual development. Argues that advanced reasoning schemata are linked by these processes and should be…

This study was concerned with student transition from concrete to formal cognitive functioning. Results of training 32 fifth-grade and 32 seventh-grade students indicated that instruction can effect the desired transition of ability to isolate and control variables. (SL)

Clarifies the difference between the Piagetian Conservation of Liquid Quantity task and the Conservation of Volume task and provides an alternative test for the presence of formal operational thought. (JR)

This study, conducted with seventh graders, lends support to the Piagetian hypothesis that the development of formal operations is a prerequisite for the effective learning of the proportions concept. (MK)

Tested two hypotheses: (1) formal reasoning is required to balance simple one-step equations; and (2) formal reasoning plus sufficient mental capacity are required to balance many-step equations. Independent variables included intellectual development, mental capacity, and degree of field dependence/independence. With 25 subjects, significance was…

Reports a procedure for training fifth and seventh grade students to substantially improve their understanding and use of controlled experimentation procedures. (SL)

Five items requiring use of proportional, probabilistic, and correlational reasoning were administered to students (N=391) in grades 6, 8, 10, and 12. Argues that successful qualitative reasoning arises as a consequence of equilibration and influences selection of course work and that specific instruction may initiate the equilibration process.…

Many science curriculum development projects have the goal of increasing students' ability to employ scientific or formal reasoning strategies. Argues that longitudinal data of students who acquired formal reasoning strategies as a consequence of specific instruction are needed to provide evidence that these skills will help in other academic…

The constructivist hypothesis that the acquisition of domain-specific conceptual knowledge (declarative) requires the use of general procedural knowledge was tested. Students (n=314) were classified as reflective, transitional, or intuitive thinkers and presented with four concept-acquisition tasks. Skill in hypothetico-deductive reasoning…