NCES (National Center for Education Statistics) Student Classroom
http://nces.ed.gov/nceskids/index.asp?flash=true
Provides information about schools, colleges, & public libraries; offers excellent games, quizzes and skill building about math, probability, graphing, and mathematicians; helps build these skills by writing for CRUNCH and perusing the glossary

National Council on Social Studies Lesson Plans, grades 6-12
http://www.socialstudies.org/lessons/
EXCELLENT resource offering a variety of teaching materials; explore "Teachable Moments" for current events, along with archived lessons
 
First Amendment Schools, Mission: First Amendment Schools: Educating for Freedom and Responsibility is a national reform initiative designed to transform how schools teach and practice the rights and responsibilities of citizenship that frame civic life in our democracy. - grades 5-12
http://www.firstamendmentschools.org/resources/lessonplans.aspx
Students become active citizens in Speech, Religious Liberty, Press, Assembly, Petition

Let's Write a Newspaper Story, grades 3-8
http://www.jhuapl.edu/education/elementary/newspapercourse/
Develops students' research, writing, & editorial skills w/lessons about creating memorable headlines, using eye-catching graphics, & designing simple page layouts; includes sample newspapers, story scenarios, & tips; hosted by the Applied Physics Laboratory at John Hopkins University; an exciting real-life writing course for elementary school students.

Reading Rainbow, grades K-6
http://gpn.unl.edu/rainbow/theme_index.asp
Created by "Reading Rainbow", the public television series; themes for every week; can be adapted for classroom use; inlcudes suggestions for setting the stage, topics for discussion, & activities; teacher guides, curriculum guides, national standards available; themes include friends, families, music; archived themes include animals, art, foods, heroes, math, ocean life

Guys Read, grades K-12
http://www.guysread.com/
Founded by author, elementary teacher, and one of six brothers, Jon Scieszka; goal is to help boys find books they'll enjoy and become readers; tips & tools for starting a guys' reading group

Reading Rockets: Launching Young Readers, grades Pre-K-3
http://readingrockets.org/
Collaborative project of U.S. Department of Education and WETA; provides resources for teaching children to read and strategies for kids who are struggling with literacy; in-depth info, tips for assessment, methods on targeting reading problems, and ways to improve self-esteem; classroom management, establishing reading groups, enlisting parent involvement; video interviews with authors, glossary of reading terms, database of award-winning books by theme

Children's Storybooks Online, grades K-8
http://www.magickeys.com/books/
Appropriate reading for each age; older children can read & develop vocabulary, poetry, & grammar skills

Barnyard Palace, grades 2-5
http://www.agr.state.nc.us/cyber/kidswrld/general/barnyard/barnyard.htm
Tour of a working farm at the North Carolina State University Veterinary Medicine College; visit all parts of the farm; info for each animal including basic life cycle, products produced by the species, dietary facts, distinguishing characteristics

CIESE: Wonderful World of Weather, grades 3-6
http://www.k12science.org/curriculum/weatherproj/index.html
Real-time data through the Center for Innovation in Engineering and Science; teach students how to observe & track weather, build & use weather instruments, understand satellite images, identify cloud formations, compare forecasts; students ask experts weather questions; enrichment activities including weather-themed children's literature, folklore, weather haiku

Kids Design Network, grades 3-6
http://www.dupagechildrensmuseum.org/kdn/
Offered by DuPage Children's Museum in Naperville, IL; chemical, nuclear, & civil engineering challenges; fascinating

Charlotte, the Vermont Whale, grades K-8
http://www.uvm.edu/whale/whalehome.html
Online museum devoted to the life a whale, Charlotte, whose bones were discovered in 1849 during building of first railroad from Rutland to Burlington; students will learn about the whale, glaciers, etc.

Renewable Energy, grades 7-12
http://www.re-energy.ca/
Teaches students about sustainable energy; explores the basic sources of solar, wind, water, and biomass energy; download background info, posters, & hands-on construction activities for designing a wind turbine, biogas generator, solar car, or eco-friendly home; submit student class work; see what other students are doing around the world; extensive list of links

Create a Graph
http://nces.ed.gov/nceskids/Graphing/
EXCELLENT resource

Interactivate, grades 3-8 - EXCELLENT
http://www.shodor.org/interactivate/
More than 100 interactive applications teaching math concepts through online manipulatives; activities have discussion discussion questions, instructions, and worksheets; activities focus on concepts in number & operation, geometry & measurement, function & algebra, and probability  & data analysis; students create tessellations, probability tables, & graphs
 
Money Math: Lessons for Life, grades 5-9
http://www.publicdebt.treas.gov/mar/marmoneymath.htm
Developed by the Center for Entrepreneurship & Economic Education at the University of Missouri; real-life examples to teach how to organize personal finances; lessons linked to national standards & tested in classrooms; resources include a 91-page teacher's guide (downloadable) with lesson plans, activity pages, & teaching tips, Kids' Home, where students explore savings bonds, play games, and read fun facts
 
Literacy Center Education Network: Play & Learn, Pre-K-1
http://www.literacycenter.net/lessonview_en.htm#
Engaging number & letter activities for parents & teachers to share with young children; activities follow a modified Montessori approach to teaching reading; available in English, Spanish, German, & French; audio helps young students stay focused & motivated; content includes upper/lowercase, identifying & matching shapes, colors, and numbers, spelling simple words
 
Apples4theTeacher, pre-K-6
http://www.apples4theteacher.com/
Educational materials organized by subject area; also tools for creating worksheets, puzzles, & word searches; check "Teacher" and "Holiday" sections along top bar

42eXplore, grades K-12
http://www.42explore.com/
Library organized by general content areas; topics include ancient Africa, dinosaurs, insects, mythology, jazz, poetry, ships, storytelling, woodworking, Native Americans, calligraphy, more

Kid Info, grades K-12
http://kidinfo.com/
Ohio educator Linda Guterba's collection of Web sites for students, teachers, & parents; many subject-specific links for homework help; hyperlinked almanacs, atlases, dictionaries, & encyclopedias; cartoons, games, puzzles, & magic sites; kid-appropriate search engines; for parents, college info, travel tips, computer resources; for teachers, lesson plans, tutorials; young children, online books, reading activities, educational games
 
Partnership for Learning (teachers & parents)
http://www.partnershipforlearning.org/
Nonprofit organization helping schools & communities work together to educate children; Editor's Pick, Learning Tip of the Day, Learning Tools, EduGuides