In the activity described in this communication, the authors present a simple experiment that can be implemented with moderate operational costs and that allows students to acquire the manipulative skills necessary for chromatographic analysis of a familiar fuel that still plays a fundamental role in providing energy for transport of passengers…

Nothing pleases parents more than receiving handmade gifts from their children, especially if the gift is in the shape of a heart. Nothing pleases an art teacher more than having a lesson that is easy to follow, teaches basic skills, and enables students to be successful with the activity. In this article, the author describes how to create a…

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…

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)