CORE Curriculum
Language Arts
Mathematics
Science
Social Studies

Language Arts
Houghlin Mifflin Language Arts                          http://www.rusd.k12.ca.us/4teachers/langarts/language6.html
6th Grade Language Arts                                            http://www.willoughby-eastlake.k12.oh.us/classroom/technology/6th_grade_language_arts.htm 
MiddleWeb Language Arts                                   http://www.middleweb.com/CurrLangArt.html
Virtual Middle School Library                              http://www.sldirectory.com/studf/language.html 

Mathematics
AAAMath                                                                                      http://www.aaastudy.com/grade6.htm
Sixth Grade Math Games                                                                  http://www.wiu.edu/users/mfjro1/wiu/GAMESand/games/6.htm
Sixth Grade Math Links                                                              http://www.nebo.edu/sagecreek/pages/math_links_6.htm
Sixth Grade Math Quizzes & Worksheets http://www.softschools.com/grades/6th_and_7th.jsp

Science
Middle School Science Teacher Websites (5th-8th grade)http://www.middleschoolscience.com/mssteachers.htm 
Science Vocabulary Hangman                                    http://education.jlab.org/vocabhangman/index.html
Virtual Middle School Library                               http://www.sldirectory.com/teachf/scied.html 

Social Studies
Ancient Greece Resources for Sixth Grade 
http://intranet.dalton.org/groups/Greece/
Middle School Library Media Curriculum Resources-Sixth Grade http://web.pccs.k12.mi.us/mscurriculumlinks/6gradesocialstudies.htm
SCORE History/Social Studies-Sixth Grade
http://score.rims.k12.ca.us/resources/grades/?g=6