This document contains the facilitator's guide for three of 12 professional development modules under development by the Applying Technology to Restructuring and Learning project. The modules are designed for professional developers and teachers interested in creating technology-assisted constructivist learning environments in K-12 classrooms. Multiple activity centers with rotating roles and assignments is the strategy modeled in the first module, "Active Learning Environments." With minimum guidance and sharing of resources/equipment, participants are expected to carry out various tasks. The facilitator assumes the role of "guide on the side" instead of the key deliverer of knowledge. In the second module, "Using Electronic Presentations in the Classroom," the facilitator assumes a more directive role in the early part of the session. Later the facilitator shifts roles as participants assume responsibility for their own learning and are expected to collaborate within/across teams and to use problem-solving skills for developing a final presentation. In the third module, "Applications for Learning: Contrasting Instructional," the facilitator assumes a central role by guiding participants through a series of increasingly complex problems using two different software applications. At the end of the activity, participants are asked to analyze, discuss, and compare the software applications, the problems they presented, and how they could be used in a classroom situation. (AEF)