Deals with (1) developmental changes in children's concepts of difficulty and ability and (2) individual differences within different developmental levels. Three levels of understanding of ability and difficulty are proposed, and cross-sectional and longitudinal evidence of progressive development through the stages is presented. (Author/RH)

Investigated ideas used/favored by 40 California students (ages 8-12) who received little/no formal teaching about electric currents. Also investigated whether they were interested in or could discuss other childrens' ideas and whether they would change their ideas following exposure to experimental evidence that was at variance with these ideas.…

Examined the effects of escapable versus inescapable aversive stimuli (noise) on performance in relation to the conceptual complexity level of college students (N=60). Overall, results suggested that conceptual complexity level mediated the experience of learned helplessness. Conceptually complex students were less negatively affected than…

Reviews 12 different methods of information retrieval for the reduction of a large set by removal of irrelevant or unwanted elements, including logic revision (use of "and" and "not" logic, classification codes, limit commands, field restriction), concept revision, and terminology revision. Examples for each option are given.…

Several experiments with 8- to 9-year-old children are reported to demonstrate that "decalage" observed between success in problems of conservation of weight, volume, and density is due to the different task situation as presented by Piaget and Inhelder. (Author)

Describes the steps in developing an instructional audiovisual presentation: (1) the conceptualization stage (identify goals and instructional objectives); (2) the planning stage (define skills and instructional sequence); and (3) the development stage (take slides, write story line, evaluate field test data, and revise). (LC)

The laboratory of an organic chemistry course for dietetics students is based on the learning cycle approach (exploration, invention-concept introduction, and concept application). The laboratory program is divided into four sections: lab techniques, compound types, reaction types, and reaction characteristics. (SK)

A review of recent curricular research presents studies in the areas of: (1) psychological and epistemological foundations; (2) new developments (content of instruction, cognitive processing, and methodological re-direction); and (3) exemplary research programs on teacher behavior, pupils' prior conceptions in learning, and probelm solving. (CJ)

Discusses nontext knowledge necessary for reading comprehension. Examines the composition of children's real world knowledge for ordinary situations. (FL)

The study reported investigated the role of memory aids in conjunctive and biconditional inductive processes of attribute-identification and rule-learning tasks, using 132 tenth grade students as subjects. Fifteen references are listed. (CHC)

Showed that in a task requiring judgments about the concept of "more" based on the relative numerosity of sets, three- to four-year-old children may base their judgments on such parameters as the extent to which the sets are homogeneous with respect to the color of their components. (Author/DB)

Results of a case study (one graduate physics tutor) demonstrate that a person's conceptions, which include metaphysical commitments, play a significant role in the way s/he understands complex subject matter such as Einstein's Special Theory of Relativity. (Author/SK)

The learning of categories by six severely handicapped students (8 to 18 years old) was measured within the context of manual sign training. As expected, results supported the best example theory of categorization which suggests that some objects are more representative of their category than others. Implications for classroom material selection…

Four experiments were conducted to determine the source of difficulty of Wason's THOG problem. The THOG problem permits examination of the way people tackle a novel hypothetico-deductive problem. The results are interpreted as demonstrating the importance of problem presentation in problem solving. (Author/PN)

Relatively simple changes in cognitive activities during prose learning can substantially affect information acquisition, yet many students' strategies are ineffective. A prose learning strategy training program using network models of long-term memory structure and depth-of-processing theory is presented with evidence of its effectiveness among…