Browse the Registry to find an Internet based project to join or post your own idea for a collaborative project. Classroom Connect's directory of subject resources and lesson plans. Guide to over 110,000 education resources on the Internet. Includes access to lesson plans from many different resources. Monthly mailing list alerts you to new education sites.
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From LION - Librarians Information Online Network, links to library oriented lesson plans and other teaching material from other librarians and organizations. A good place to start to get ideas for research skills lessons.