Motion planning is a core problem in robotics concerned with finding feasible paths for a given robot. Motion planning algorithms perform a search in the high-dimensional continuous space of robot configurations and exemplify many of the core algorithmic concepts of search algorithms and associated data structures. Motion planning algorithms can…

Briefly describes a workshop model developed by the Texas Learning Technology Group to educate teachers about technology uses in the science curriculum. Highlights include hands-on experience, cooperative small group activities, print and electronic courseware, and implementation strategies. (LRW)

The constructionist concept of social negotiation of meaning recognizes peer interaction and feedback as an important factor for expanding meaning. This concept has particular relevance in the context of developing habits of reflective thinking in teacher preparation programs. This article describes an approach to increasing opportunities for peer…