CORE Curriculum
Language Arts

Mathematics

Science

Social Studies

Language Arts
Bookmarks-Fourth Grade Resources for Language Arts http://teachers.henrico.k12.va.us/specialist/marymassie/fourth.htm

Fourth Grade English  http://schoolweb.missouri.edu/smithville.k12.mo.us/uptegrove/fourthgradeenglish.html

Language Arts Lesson Plans & Resources http://www.cloudnet.com/~edrbsass/edeng.htm

Mrs. Renz's 4th Grade Language Arts http://www2.redmond.k12.or.us/mccall/renz/langartslinks.htm

Mathematics
AAA Math  http://www.aaamath.com/grade4.html

Cool Math Sites http://www.cte.jhu.edu/techacademy/web/2000/heal/mathsites.htm

Fourth Grade Skills (Math + Other Academic Subjects)http://www.internet4classrooms.com/skills_4th_original.htm

Fourth and Fifth Grade Student Research Resources http://www.geocities.com/EnchantedForest/Tower/1217/math.html

Science
Fourth Grade Science                                  http://www.ahsd25.k12.il.us/curriculum/scilinks/fourth.html

Rockingham Fourth Grade Science http://www.rockingham.k12.va.us/resources/elementary/4science.htm

Science Tests and Resources                           http://www.quia.com/pages/hostettersciencecs.html

Scott Foresman Science                                          http://www.sfscience.com/english/grade_4/index.htm

Social Studies
California-Social Studies
http://teacherweb.com/CA/Fenton/Sanders/printLinks3.stm

Fourth Grade Resources 
http://elcerritowire.com/4/ss.htm

Fourth Grade Social Studies Curriculum Guide CA
 http://www.njes.nvusd.k12.ca.us/california.htm 

Grade Level Resource Fourth Grade Social Studies
http://www.orangeusd.k12.ca.us/resourcetools/4th/social_studies.htm