Young children increasingly interact with technological devices, either as a form of entertainment or for educational purposes. This research sought to investigate the early symbolic understanding of an interactive, three-dimensional digital image presented on a tablet. Two studies were designed in which the children had to use the image as a…

Examination of hypothesis-testing and nonlinguistic symbolic abilities of 10 language impaired and 10 language normal children revealed that language impaired Ss performed significantly more poorly than controls on haptic recognition tasks and on a portion of the discrimination learning task. No differences were found between the groups' concept…

Two studies investigated the presence of precursors of symbol formation in eight autistic children (nine years old) compared to matched retarded children. Results indicated that autistic Ss could form internal images but appeared to be unable to manipulate them in a purposeful and meaningful manner. (Author/CL)

Three tests were conducted to contrast the ability of bilingual and monolingual children to label and relabel objects. The findings show that bilingual subjects were significantly better than monolingual subjects, supporting the view that preschool bilingual education stimulates children's cognitive development, and enhances their self-concept.…

There were 120 pupils in years 1 to 5 from two schools which were interviewed using specially prepared tasks to study the variety of interpretations given to letters by adolescents. Results indicate that two distinct conceptual understandings of the role played by a letter in relation to geometrical data exist in pupil's thinking. (Author/TG)

Explores the relations among combinatorial capacities in language, symbolic play, blockbuilding, and nonsemantic action sequences within a sample of 18- to 24-month-old children, as well as assessing the developmental level of a selected subset of concepts. (HOD)

A structured system of visual features is seen to parallel the propositional hierarchy of operations usually associated with the parsing of algebraic expressions. Women more than men were found to depend on these visual cues. Possible causes and consequences are discussed. Subjects were secondary and college students. (Author/DC)

Eight severely retarded subjects (ages 9-22), four with functional language and four without, performed identity and nonidentity matching tasks employing objects, photographs, and line drawings. As representational complexity increased, greater difficulty in matching stimuli was observed in the nonfunctional language group, with line drawings…

The effects of different models of exploration questioning on young children's associative fluency were examined in two experiments with kindergarteners. It is concluded that asking descriptive and difference exploration questions are most facilitative of children's associative fluency. (Author/SEW)

This paper examines sixth-grade children's thinking related to solving ratio and proportion problems before these children had received any instruction in the domain. It explores unitizing and norming, one of the processes identified by both content analyses (Behr, Harel, Post, & Lesh, 1990); Harel, Behr, Post & Lesh, 1990) and research in…

This longitudinal study investigated the ways in which two groups of eight students used spreadsheets to represent and solve algebra problems and related this to their previous arithmetical experiences and evolving use of symbolic language. The spreadsheet environment supported students to move from specific to general thinking. Includes story…