This study examined elbow angle during a fine motor task (threading a needle), in the context of positions used in preclinical training exercises and assumed by practitioners performing dental procedures. The 101 subjects tended to choose an obtuse angle (mean of 125 degrees) and to vary this angle only slightly in repeated trials. (DB)

Research on object exploration by infants addresses milestones in the process by normally developing infants, including spontaneous manipulation strategies. Implications for developmentalists working with high-risk preterm infants are noted, including the need for direct assistance in manipulation and for selection of materials. (CL)

Use of manipulatives is neither a sufficient nor a necessary condition for meaningful learning. Provides some incidents in support of the argument. Lists 14 references. (YP)

Describes materials mastery and symbolic development as two discrete but related processes that preschool children learn. Uses the preschool setting to identify the developmental stages of construction play. (AS)

Describes an activity to create squares by placing different numbers of tangram pieces together. Discusses why the combination of six tangram pieces can not create a square. Presents diagrams of the tangram pieces and the squares made. (YP)

Various counting tasks were presented to 24 congenitally, totally blind children, aged 3-13, to determine the behaviors employed to ensure accurate counting. Three dimensions of tactile strategies were found, including "scanning,""organizing," and "partitioning." A developmental progression in the ontogenesis of each…

Describes eight learning centers/activities designed to promote tactile/sensory experiences in younger children. (JN)

Described is how using LOGO tools for manipulating embodiments of geometric objects helps students construct more abstract and coherent concepts. Discussions are included on developing verbal definitions versus constructing concepts, tasks for integrating turns and angles, group discussions, and maze tasks. (KR)

Describes several tests for determining dominance of children's hands, eyes, feet, and thumbs. Discusses the relationship between hemispheric brain dominance and dominant sides of the body. Suggests that raising questions about generalizations can lead to new learning. (TW)