The Busy Teacher's WebSite for K-12
This site is designed to provide teachers with direct source materials, lesson plans, and classroom activities with a minimum of site-to-site linking.  There is one section dedicated to elementary school.  Many of the subject-indexed sites contain pictures, sound, and movies that can be used by elementary students, even when the text is too advanced for them.

Grades K-2 Themes
Kennesaw State University

Grades 3-5 Themes
Kennesaw State University

Innovative Teaching
Walter McKenzie

Jerrie's Curriculum Hotlists
Kennesaw State University

Kathy Schrock's Guide for Educators

Marco Polo

Surfing the Net with Kids
Barbara Feldman

Theme Pages for Elementary Students and Teachers
Compiled by Jim Cornish, fifth grade teacher at Gander Academy in Newfoundland, Canada.