Three problem-solving strategies--working backward from the unknown, forward from the given, and mixed--were applied to interrelated algebra equations. The mixed strategy was most popular and most efficient with grouped variables. Memory load or information-processing load differences among the strategies were evident. (CP)

Four experiments studied effects of difficulty of word identification on optional conceptual processing by second, third, and fifth graders, and college students in a cued recall task. Results indicated that contrastive processing facilitates recall, and that difficulty of word identification may limit the extent of optional contrastive…

Less is known about the effects of normal aging on speech output than other motor actions, because studies of communication integrity have focused on voice production and linguistic parameters rather than speech production characteristics. Studies investigating speech production in older adults have reported increased syllable duration (Slawinski,…

Categorization researchers typically present single objects to be categorized. But real-world categorization often involves object recognition within complex scenes. It is unknown how the processes of categorization stand up to visual complexity or why they fail facing it. The authors filled this research gap by blending the categorization and…

Relational complexity (RC) theory conceptualizes an individual's processing capacity and a task's complexity along a common ordinal metric. The authors describe the development of the Latin Square Task (LST) that assesses the influence of RC on reasoning. The LST minimizes the role of knowledge and storage capacity and thus refines the…

This paper presents a goal-based scenario approach to teaching introductory database concepts to undergraduates using two different scaffolding methods. One method, termed "worked-out examples," attempts to reduce extraneous cognitive load by requiring students to complete increasingly complex missing parts of worked out examples. The other…

This study investigates the influence of changes in the wording of simple addition and subtraction problems without affecting their semantic structure on the level of difficulty of those problems for first and second graders and on the nature of their errors. The objective is to contribute to a better understanding of the process of constructing a…

An exploration of children's responses to some of the Caldecott prize-winning books, using a Piagetian-type interview. An attempt is made to find out why some children are "turned off" by books that, from all ostensible evidence, are of high quality. (CS)

Comprehension of metaphor was examined in 36 children ranging in age from 55 months to 186 months. The subjects were audiotaped while answering questions about a target sentence that was contextually anomalous. Five pictures were drawn to accompany each story, two relating to the literal meaning of the target sentence, two to the metaphoric…

Three questions are addressed in this study: (1) what is the effect of additional, unexplained content on achievement and perception? (2) is the effect altered by time? and, (3) what is the relation between student achievement and student perception? It was determined that the effect on achievement was not significant but the effect on perception…