This study evaluated the accuracy of 9 pointing methods used by 20 blind adults. Substantial differences were found, with the most accurate methods involving a body part or extension. The verbal "clockface" was the least accurate and most variable method. The long cane is recommended as a pointing method for adults in applied and…

Examined infants' ability to locate an invisible target after instrumental and association training. After instrumental training, localization was dependent on visual cues, whereas after association training, it occurred with or without visual cues. Concluded that an updating strategy based on proprioceptive information is operative from the…

Compared interstimulus interval (ISI) eye movements of 3-month-olds viewing an alternating picture sequence with those of infants viewing an irregular sequence. Found that all infants exhibited shifts during ISIs. Repetitive saccades declined while alternating and anticipatory saccades increased in alternating sequences. ISI shift frequency did…

Demonstrates how research-based knowledge of students' incompatible solutions to various representations of the same problem could be used to raise their awareness of inconsistencies in their reasoning. Reports that students' decisions as to whether two given infinite sets have the same number of elements depend on the specific representation of…

Describes three activities of imaging, including constructing an image, representation-presenting the image, and transforming the image. Discusses a link between imaging and number sense, teaching students to image, and assessing imaging. Contains 25 references. (ASK)

Studied the effects of peer collaboration on the acquisition of the understanding that water remains invariantly horizontal. Results from 69 female and 22 male college students show that peer collaboration did not lead to greater understanding than working alone, but that men and women talked about the problem differently and that the use of…

Discusses issues related to delivering spatially oriented data to the general public, since communication through computer graphics should be accessible to the masses as well as to specialists. The second half of the paper describes the Purdue University Virtual Visit, a resource being used for visualization and communication at Purdue University…

Presents a study reviewing the importance of spatial ability to biology achievement and demonstrates a spatial enhancement that presents content while improving an important aspect of spatial ability, flexibility of closure. (Contains 31 references.) (ASK)

Five experiments tested hypothesis that the A-not-B error results from general processes that make goal-directed actions to remembered locations. Findings showed that 2-year-olds' performance on the A trial was accurate. When the object was hidden at Location B, searches after 10-second delay were biased in the direction of Location A. This bias…

Used a dual-task method to study the processes that underlie the flexible conjunction of information. Results of four experiments, involving 16, 36, 12, and 16 college students and adults suggest that flexible spatial memory depends on the ability to combine diverse information sources rapidly into unitary representations. (SLD)

Explains the importance of spatial visualization skills in engineering and women's lack of 3-D spatial skills. Introduces a special course designed to enhance 3-D spatial skills as they relate to the retention and overall success of female engineering students. (Contains 25 references.) (Author/YDS)

Values the use of a contextualized poster in which the images are more important than the actual words. Confirms this through an analysis of a questionnaire handed out to a sample of 'English for Specific Purposes' students. Addresses the pedagogical implications that the use of a poster has proved to have with a multidisciplinary group of…

The basic task of educational theory is to ground education in the being of children and youth. Education, however, is a very broad domain, consisting of four major problem areas: (1) the nature and aim of education; (2) the organisation of instruction and school policy; (3) the design and content of the curriculum; and (4) the teaching and…

The cube imitation test was developed by Knox (1913) as a nonverbal test of intelligence. Many variants show satisfactory reliability, but performance is correlated both with Verbal IQ and with Performance IQ. Performance is impaired by cerebral lesions but unrelated to the side of lesion. Examinees describe both verbal and visuospatial…

In four experiments the behavioral consequences of an involuntary attentional distraction concerning memory performance was investigated. The working memory model of Cowan (1995) predicts a performance deficit for memory representations that are held in an active state when the focus of attention is distracted by a change in physical properties.…